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  Press Relase: HYDROFORMING PRESSES
Posted by: MURARO on Saturday, February 05, 2005 - 05:02 PM
 
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241 Reads

Since more than 40 years Muraro has been manufacturing presses and dies of medium and large size for Hydroforming in the various pressing forces on sheet and pipes by traditional working cycles.

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  Press Relase: Water means life
Posted by: Hydro_Publishing on Tuesday, February 03, 2004 - 09:29 PM
 
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402 Reads

The sense of this statement is as old as the Genesis itself and usually implies a favorable condition. However, growth of micro organisms in a water system used as a hydroforming pressure media might not be favorable.

A professional authority for metal working in Southern Germany divides the kind and frequency of micro organisms into two broad groups:

a. Surface-to-air growths that are harmless to humans (Risk Group 1 in their Biological Substance Decree brochure.
b. Growths that can infect humans in certain cases (Facultative Pathogen growths: Risk Group 2)

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  Shop: For Sale
Posted by: Hydro_Publishing on Thursday, December 04, 2003 - 01:33 PM
 
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1616 Reads

Hydroforming machines for sale.

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  Archive: Universities
Posted by: Hydro_Publishing on Saturday, November 15, 2003 - 10:06 PM
 
  All Topics
1860 Reads

Uni Siegen

Universität Siegen
Fachbereich 11 Maschinentechnik
Paul-Bonatz-Straße 9-11
D-57068 Siegen

phone: +49 (271) 740-2849
fax: +49 (271) 740-2772
contact: Univ.- Prof. Dr.-Ing. Bernd Engel

"Our sponsors are always first."
---------------------------------------
Note: Last Update: February 11, 2005

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  Fundamentals of Hydroforming - Book Published by SME
Posted by: Harjinder on Saturday, November 01, 2003 - 08:14 PM
 
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1910 Reads

This book is for manufacturing engineers, product designers and companies who want to implement hydroforming --a process where fluid pressure is applied to ductile metallic blanks to form component shapes. The book defines the basic processes and discusses the history and future of hydroforming. It further explores: tube hydroforming, sheet metal hydroforming, the advantages of hydroforming, product design guidelines, methods of assembly, hydropiercing holes and slots, materials selection, tube selection, prior and post operations, process computer simulation, systems equipment, and tool design.
Product Information

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  Hydroforming.net - Jobs (pmc0803)
Posted by: Hydro_Publishing on Saturday, August 30, 2003 - 04:24 PM
 
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594 Reads

Job offer as Process Engineer

Our client is one of the important, worldwide acting Automotive First Suppliers with a turnover of around 490 Mio. Euro and 4.000 employees. The mentioned position is located at a production site with app. 400 people.
Note: Online Start: August 30, 2003

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  Archive: Preformig
Posted by: Hydro_Publishing on Friday, May 09, 2003 - 11:02 PM
 
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3113 Reads


Note: Last Update: January 20, 2005

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  Media: Please join the Hydroforming List at the Internet
Posted by: Hydro_Publishing on Thursday, January 02, 2003 - 11:41 AM
 
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4986 Reads

You are invited to join the Hydroforming List and Group. Please keep the topic to the hydroforming process of tubular or sheet products and any related technology in the hydroforming parts construction and production. Group languange is English.

Please keep in mind that new subscribers are moderated for the first time. This is another spam protection to all list members.

There is now no limitation of messages. But please don't send any attachments over the list. All attachments will be removed automatically from any e-mail. This is a security option for your safety. You can be sure to get no virus over the list! If you have already joined, check the archive for older messages. You'll find lot of useful and helpful information

Now how you can subscribe?

Please copy the link below and past them into your browser comand line for more information.

http://groups.yahoo.com/group/hydroforming

Post message: hydroforming@yahoogroups.com
Subscribe: hydroforming-subscribe@yahoogroups.com
Unsubscribe: hydroforming-unsubscribe@yahoogroups.com

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  Press Relase: Amino Announces Sheet Hydroforming Facility in North America in 2003
Posted by: Hydro_Publishing on Tuesday, November 19, 2002 - 07:28 PM
 
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1905 Reads

Amino is announcing their plan to open a fluid forming (sheet hydroforming) production facility and sales and service center in North America by the end of 2003. Amino has recently purchased a modern 30,000 sq. ft. stamping facility on seven acres in St. Thomas, ON, Canada. St. Thomas is centrally located between Detroit and Toronto within easy reach of the heart of the automotive industry.
Note: Last Updated: December 30, 2002

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  Press Relase: Tube & Pipe Association, Int’l., announces TPJ® Symposium
Posted by: Hydro_Publishing on Sunday, October 06, 2002 - 06:09 PM
 
  All Topics
703 Reads

Rockford, Ill. -- The TPJ® Symposium, anticipated as the 2003 event for leaders in the tube and pipe industry, is scheduled for Mar. 16 - 18 at the Radisson Resort & Spa in Scottsdale, Ariz. Sponsored by the industry's leading publication, TPJ - The Tube & Pipe Journal®, and the Tube & Pipe Association, International® (TPA), the symposium will deliver the latest topics and trends related to the technical management of a tube and pipe operation.

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  Press Relase: hde - the Hydroform specialists
Posted by: Hydro_Publishing on Tuesday, August 20, 2002 - 11:21 PM
 
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2470 Reads

Whenever there is discussion among the experts and now more and more frequently among users about hydroforming and competent and reliable mass production suppliers of hydroformed components, the name of hde Metallwerk GmbH in Menden is mentioned.

As "Hidden Champion" hde has acquired during the last 30 years its reputation as the technological market leader and world wide as one of the largest (many say even the largest) producer of hydroformed components of small and medium range dimensions from almost all known materials.

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  Hydroforming Process
Posted by: Hydro_Publishing on Thursday, August 15, 2002 - 10:43 PM
 
  All Topics
623 Reads

Follow the process steps for hydroforming:

  • Tube and Pipe

  • Cutting

  • Bending

  • Endforming

  • Heat treatment

  • Lubrication

  • Hydroforming

  • Cleaning

  • Welding / Laser



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      Press Relase: DEMAND FOR HYDROFORMED AUTOPARTS HASN’T SLOWED SINCE SEPT. 11
    Posted by: Anonymous on Wednesday, June 05, 2002 - 05:37 PM
     
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    1582 Reads

    "Hydroformed auto parts continue to be in great demand even after September 11 and they continue to increasingly replace conventional automotive parts", says Ken O. Eldib, President of GLOBAL TRADE CONSULTING, Indianapolis, Indiana. The company has just released an all new market research report on hydroformed auto parts at the Big-Three and OEM autoparts makers in North America.

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      Press Relase: Fully-integrated manufacturing operation for tubes
    Posted by: Börries Burkhardt on Sunday, May 26, 2002 - 10:28 PM
     
      All Topics
    645 Reads

    In cooperation with Siempelkamp Pressen Systeme (SPS), Soudronic Automotive has developed a system producing quality products from blanks to finished hydroformed components extremely economically and taking into account all important elements such as inline quality control, increasing output and maintaining system uptime.

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      2002 Dodge Ram based on hydroforming frame
    Posted by: Börries Burkhardt on Monday, May 06, 2002 - 10:22 PM
     
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    943 Reads

    The all-new frame makes the most use of hydroforming on any pickup cars at the present time. The frame is not only lighter, but more durable. Hydroforming allows for cross-members to be welded to the top and bottom of the side wells, which also improves torsional stiffness / Fully Boxed Side Rails. (Published at http://www.4x4review.com )

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      SHEET HYDROFORMING - A COMPACT SOLUTION
    Posted by: SCHOENNENBECK on Monday, April 15, 2002 - 07:05 PM
     
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    2936 Reads

    THE MOST POWERFUL VARIANT OF HYDROFORMING

    Markus Erras, Siempelkamp Pressen Systeme, Krefeld
    Summary

    In the following, the author introduces a sheet metal hydroforming press system which Siempelkamp Pressen Systeme, Krefeld delivered to the University of Dortmund, Faculty Of Mechanical Engineering, under Prof. Dr.-Ing. M. Kleiner. Successful commissioning of this customized hydraulic press was completed in December 2001.

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      Research and Development for hydroforming
    Posted by: Börries Burkhardt on Sunday, April 14, 2002 - 08:39 PM
     
      All Topics
    7786 Reads

    Here you’ll find a actual listing of companies who offer research and development as well as prototype for the tube and sheet metal hydroforming.

    Interlaken Hydroforming

    Interlaken Hydroforming
    8175 Century Boulevard
    Chaska, MN 55318
    U.S.A.
    phone: +1 (952) 856-4210
    fax: +1 (952) 856-4221
    internet http://www.interlaken.com
    contact: Dan Prill
    e-mail: dprill@interlaken.com

    "Our sponsors are always first."---------------------------------------
    Note: Last Update: November 19, 2004

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      Archive: Impressum Hydroforming.net
    Posted by: Börries Burkhardt on Friday, April 12, 2002 - 11:34 PM
     
      All Topics
    913 Reads

    Impressum
    Note: Contact direct:

    Boerries Burkhardt
    Gartenstr. 38-1
    D-70771 Leinfelden-Echterdingen
    Germany

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      VW laser cuts hydroformed parts
    Posted by: Börries Burkhardt on Saturday, March 23, 2002 - 09:53 AM
     
      All Topics
    569 Reads

    Hydroforming creates hollow metal structural parts from a tubular element that is three-dimensionally shaped inside a mold by fluid under pressure. Parts have very high stiffness, tensile strength properties, and structural integrity. The number of moldings required is reduced, and one part replaces several. Parts also are lighter and have less distortion problems, mainly because is no need for a lot of welds (mostly MIG). Engineers can also hydroform a variety of metals using the same mold.

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      Press Relase: Interlaken Hydroforming Production Press Produces Stainless Steel Fuel Filler
    Posted by: interlaken on Friday, March 15, 2002 - 09:46 PM
     
      All Topics
    400 Reads

    Eden Prairie, MN--- Interlaken Technology Corporation offers a Hydroforming Production Press System for manufacturing stainless steel offset fuel filler necks. The multi-channel computer-controlled press features closed loop control of hydraulic forces and motions. In addition, the hydroforming press has a small footprint and fits well into a workcell environment.

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      Sheet Fluid Forming and Sheet Dieless Forming Part 2.
    Posted by: Trent Maki on Friday, March 01, 2002 - 11:18 AM
     
      All Topics
    1105 Reads

    Fluid Forming Applications to Automotive and Other Industries. A continue report by Mr. Hiroyuki Amino (President, Amino Corp.).


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      Archive: Hydroforming Information in Chinese
    Posted by: Börries Burkhardt on Friday, February 22, 2002 - 11:24 PM
     
      All Topics
    1622 Reads



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      Archive: Hydroforming Information in Japan
    Posted by: Börries Burkhardt on Friday, February 22, 2002 - 11:20 PM
     
      All Topics
    1488 Reads

    ハイドロフォーミングネットにようこそ

    ハイドロフォーミングネットはハイドロフォーミング産業に関わる事柄のためのあなたのための情報です
    以下にハイドロフォーミング機メーカーとその下請けに関する世界中の情報を掲載します。
    チューブとパイプのサプライアー、工具メーカー、潤滑油スペシャリストのコンタクト先、チューブベンディングの情
    報等あなたの生産プランの助けになるものがあります。

    多様な言語での技術資料は最新情報の習得に大いに役立つでしょう。

    ハイドロフォーミングネットはハイドロフォーミングの周辺情報も掲載する予定です。
    どうぞウエッブサイトを開いてください。
    お望みの情報が見あたらなければ連絡ください。 常に情報を更新します。

    もし我々とコンタクトする場合は英語かドイツ語でE-メイルを送って下さい。

    ここを離れる前にどうぞハイドロフォーミングリストに参加してください。
    最初のページのサブスクリプションリンクスを使ってください。

    ハイドロフォーミングネットのウエッブページを楽しんで頂いたとおもいます。
    どうぞ度々このページを訪問して下さい。

    敬具
    Boerries Burkhardt

    ニュウレポート

    シートフリュイッドフォーミングとシートダイレスフォーミング
    網野広之氏はシートフリュイッドフォーミングの理論を説明後、その特徴と自動車産業における多
    くの実用例を説明された。
    またシートハイドロフォーミングの可能性を実証するための多くの加工サンプルを写真で示され
    た。

    Arndt Birkert of Krupp Drautz GmbH
    はチューブラーハイドロフォーミングの工具と設計を紹介します。
    内圧と予備成形は必要ですか?
    答えはこのレポートの中にあります。またキャリブレーションやハイドロピアシングについても書
    かれています。

    ハイドロフォーミングネットについては先ずイングリッシュスタートページを見てください。


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      Archive: Hydroforming Information in Korean
    Posted by: Börries Burkhardt on Friday, February 22, 2002 - 11:15 PM
     
      All Topics
    1747 Reads

    하이드로포밍넷에 방문 하심을 환영 합니다.

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      Press Relase: The hydroform revolution - Laser-robots
    Posted by: Börries Burkhardt on Friday, February 22, 2002 - 10:51 PM
     
      All Topics
    795 Reads

    Laser-robots are flexible devices for processing in the automobile industry. The integration of lasers and robots is an important element in the growing technology of hydroforming.

    Five years ago there was minimal use of hydroforming by the automotive industry. Today, automotive chassis and component designers are introducing hydroformed members into their vehicles at such a rate that the market is doubling every two years. And the reasons are clear; hydroformed parts reduce weight, lower costs and provide a far higher-quality structure than conventional stamped and welded assemblies.

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      Archive: Lasertechnology for Hydroforming
    Posted by: Börries Burkhardt on Friday, February 22, 2002 - 05:42 AM
     
      All Topics
    3036 Reads


    Note: Last Updated: June 27, 2004

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      Archive: Software for hydroforming and tube bending
    Posted by: Börries Burkhardt on Sunday, February 17, 2002 - 07:25 PM
     
      All Topics
    3171 Reads


    Note: Last Update: June 22, 2003

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      Archive: Cutting,
    Posted by: Administrator on Tuesday, February 12, 2002 - 08:08 PM
     
      All Topics
    2102 Reads


    Note: Last update: June 27, 2004

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      Sheet Fluid Forming and Sheet Dieless Forming Part 1.
    Posted by: Trent Maki on Thursday, February 07, 2002 - 08:57 PM
     
      All Topics
    956 Reads

    The automotive and other industries are striving to overcome current forming limitations to make use of newer materials and form more complicated shapes. Moreover, cost effective production methods are desired and alternative manufacturing processes are being investigated. This paper introduces two possible solutions; sheet fluid forming (sheet hydroforming) and dieless NC forming. They clear most forming restrictions and can form intricate shapes at a lower tooling cost and in a shorter development time.

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      Archive: Heat treatment
    Posted by: Administrator on Thursday, February 07, 2002 - 08:19 PM
     
      All Topics
    2090 Reads

    Heat treatment - Glühen
    Note: Update: Jne 11, 2002

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      Archive: Tube Bending Machines
    Posted by: Administrator on Monday, February 04, 2002 - 08:12 PM
     
      All Topics
    8241 Reads

    Tube bending machines for hydroforming parts.
    Note: Last Update: Februray 20, 2003

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      Engineering Research Center for Net Shape Manufacturing
    Posted by: Administrator on Saturday, February 02, 2002 - 03:51 PM
     
      All Topics
    629 Reads

    Established in 1986, the Engineering Research Center for Net Shape Manufacturing focuses on the manufacture of discrete parts to net or near net dimensions via tube hydroforming, stamping, precision forging, and high-performance machining. The ERC/NSM is the leading R&D group in Tube Hydroforming technology in North America. The Tube Hydroforming (THF) consortium is conducted with the support of the National Science Foundation and more than 30 companies worldwide.

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      Tool and Part Design for Tube Hydroforming Part 1
    Posted by: Arndt Birkert on Friday, February 01, 2002 - 06:05 PM
     
      All Topics
    640 Reads

    In designing the hydroforming process for the production of automotive structural components, a number of factors must be taken into account to ensure technically and economically viable production. The component design and the required mechanical component properties determine both the process flow and to a large extent the design of the necessary forming dies and required machines.
    The following paper discusses key design and production aspects and illustrates them by reference to selected examples.

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      Archive: Hydroforming Toolings
    Posted by: Administrator on Thursday, January 31, 2002 - 07:06 PM
     
      All Topics
    6904 Reads

    Hydroforming Tooling
    Note: Update July 7, 2003

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      Archive: Tube - Pipe - Rohre
    Posted by: God on Thursday, January 31, 2002 - 06:59 PM
     
      All Topics
    10131 Reads

    Hydroforming Tooling
    Note: Last update: January 18, 2005

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      Archive: Lubrication - Oil
    Posted by: Administrator on Tuesday, January 29, 2002 - 11:33 PM
     
      All Topics
    4443 Reads

    Lubrication and Oil suppliers for the hydroforming industries.

    Brachtheuser Lubrication

    Brachthäuser Mineralöle GmbH & Co KG
    Zum Elberskamp 14
    D - 57413 Finnentrop-Heggen
    Germany
    phone: +49 (02721) 6033-0
    fax: +49 (02721) 6033-33
    internet: http://www.brachthaeuser.de

    DA Stuart Lubrication

    D.A.Stuart GmbH
    Beyenburger Str. 164-168
    D - 42287 Wuppertal
    Germany
    phone: +49 (0202) 60700-0
    fax: +49 (0202) 606884
    internet: http://www.stuart.de
    contact: Detlef Raufhake

    "Our sponsors are always first."
    ---------------------------------------
    Note: Last update: November 7, 2004

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      Archive: Hydroforming Parts / OEM Guide
    Posted by: Administrator on Monday, January 28, 2002 - 08:31 PM
     
      All Topics
    16912 Reads

    Hydroforming parts and OEM guide.

    Interlaken Hydroforming

    Interlaken Hydroforming
    8175 Century Boulevard
    Chaska, MN 55318
    U.S.A.
    phone: +1 (952) 856-4210
    fax: +1 (952) 856-4221
    internet http://www.interlaken.com
    contact: Dan Prill
    e-mail: dprill@interlaken.com

    Oswald Hydroforming

    Oswald Hydroforming GmbH & Co. KG
    Gewerbering 26a
    D - 08451 Crimmitschau
    Germany
    phone: +49 (03762) 9597-15
    fax: +49 (03762) 9597-29
    internet: http://www.ohc.de
    contact: Peter Freytag at p.freytag@ohc.de

    VIA Formtec

    VIA Formtec GmbH & Co. KG
    Am Heller 3
    57250 Netphen-Werthenbach
    Germany
    phone: +49 (02737) 2293-22
    fax: +49 (02737) 2293-11
    internet: http://www.VIA-Formtec.de
    contact: Markus Löcker
    e-mail: M.Loecker@VIA-Formtec.de

    "Our sponsors are always first."---------------------------------------
    Note: Last Update: January 18, 2005

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      Picture Gallery of the great opening at Kuka Schwarzenberg
    Posted by: Administrator on Sunday, January 27, 2002 - 07:18 PM
     
      All Topics
    387 Reads

    Please click on "Read more..." to see the images of the opening at Kuka Schwarzenberg.

    Hydroforming side.

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      Archive: Conference - Congress - Events - Schedule 2005
    Posted by: God on Saturday, January 26, 2002 - 10:18 PM
     
      All Topics
    2534 Reads

    11. Forum Innenhochdruck-Umformen at the PtU-Darmstadt, Germany at February 09./10 2005.
    Note: Last Update: January 14, 2005

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      A view into the next future
    Posted by: Administrator on Friday, January 25, 2002 - 11:46 PM
     
      All Topics
    241 Reads

    During the great opening of the newest AP&T Hydroforming press at KWS Schwarzenberg, we were able to get a small view into the future. Mr. Schäfer of AP&T Schäfer Technologie GmbH at Wilnsdorf, Germany explained the Hydroforming technology who started back in 1954 in Japan to the latest state-of -the-art machines today. The requirement to reduce the cost of the part is the major point.

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      KUKA goes Hydroforming
    Posted by: Administrator on Thursday, January 24, 2002 - 10:59 PM
     
      All Topics
    145 Reads

    Schwarzenberg Germany January 24, 2002, the company KUKA Werkzeugbau Schwarzenberg GmbH (KWS) completted their section of products with the latest state-of-the-art hydroforming machine.

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      Archive: Hydroforming Machine Builders Guide
    Posted by: Hydro_Publishing on Sunday, December 30, 2001 - 11:37 PM
     
      All Topics
    20015 Reads

    Worldwide list of hydroforming machine builders and suppliers.


    Note: Last Update: February 10, 2005

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      Press Relase: Hydroforming Live-Presentation at Schuler Hydroforming Inc. in Canton,
    Posted by: Andreas Trost on Thursday, December 13, 2001 - 11:01 PM
     
      All Topics
    292 Reads

    On December 6, 2001 the attendees of the SME (Society of manufacturing Engineers) Tube Hydroforming Conference visited the Schuler Hydroforming USA Technology Center in Canton, MI. The 82 participants watched the hydroforming of crossmembers at one of the two hydroforming presses (capacities 5,500 & 9,350 tons). The prototyping teams explained the visitors the process using FEA-simulations that show the material flow.

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      World premier for a new sheet metal hydroforming machine
    Posted by: Administrator on Thursday, December 13, 2001 - 09:17 PM
     
      All Topics
    380 Reads

    The highlight of the colloquium sheet metal hydroforming was the presentation of the new 100-MN-Hydroforming-Press, which is developed by the Chair of Forming Technology (LFU) of the University of Dortmund and the company Siempelkamp Pressen Systeme (SPS) in the scope of the priority research programme.

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      Press Relase: Ford Motor Company relies on Hydroforming...
    Posted by: Andreas Trost on Monday, December 03, 2001 - 10:36 PM
     
      All Topics
    349 Reads

    Ford Motor Company relies on Hydroforming Technology for the Production of Side Rail. 35% Savings in Steel ! The production of chassis components such as side rails and cross rails is a tradition at the Ford Frame Plant in Dearborn, Michigan. More than 300,000 complete frame assemblies leave the facility every year. The fact that tradition does not exclude progress is shown by the Ford’s investment in two fully automated Schuler hydroforming lines for the manufacture of side rails

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      A Large Order for Hydroforming Equipment from Tool Manufacturer KWS
    Posted by: Administrator on Friday, November 30, 2001 - 10:36 PM
     
      All Topics
    209 Reads

    AP&T in Germany has received an order for an 8,000 metric ton hydroforming system from the German Automotive manufacturer KWS, part of the KUKA Group.
    The order represents two important milestones for AP&T. On the one hand it is the first large order for a hydroforming press within the automotive industry, and on the other hand it is an important step into the German market.


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      Theory and Practice in the Field of Hydroforming
    Posted by: Schuler_Hydroforming on Sunday, November 25, 2001 - 07:16 PM
     
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    "Hydroforming State-of-the-Art" was the motto of the 3rd International Hydroforming Congress held on October 18 and 19 in Pamplona, Spain. The event, organized by Schuler Hydroforming and Gestamp mb hidroacero, attracted more than 200 participants from 18 countries, who took the opportunity to gain first-hand information about the latest technologies and practical experiences in the field of hydroforming.

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      Robo-Clamp: Dana’s Hydroforming Answer
    Posted by: God on Friday, November 09, 2001 - 10:14 PM
     
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    by Tom Murphy from Ward's AutoWorld

    Dana’s only current hydroforming contract is the engine cradle for the new Windstar, but within four years, 40% of Dana’s structural products will be hydro-formed. Dana’s new "Robo-Clamp" will help meet that demand.

    When Magna International Inc. landed a major contract to produce frames for the GMT800 full-size pickups and sport/utility vehicles (SUVs) from General Motors Corp., it was a crushing blow for Dana Corp., which had supplied frames for the previous-generation CK pickups for 10 years.
    Dana lost the contract, as did Tower Automotive on the SUVs, partly because Magna had a valuable weapon in its technology arsenal: hydroforming.

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      Press Relase: Market research report on automotive hydroforming in North America
    Posted by: God on Friday, November 09, 2001 - 10:09 PM
     
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    Hydroforming is the latest and most exciting technology for manufacturing automotive components. This new report is for companies that want to learn about the U.S. market for hydroformed autoparts, from an independent, knowledgeable market research company. In this report, GLOBAL TRADE CONSULTING provides detailed information on:

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      Press Relase: Tower Automotive Announces Acquisition of Dr. Meleghy GmbH & Co. KG
    Posted by: God on Friday, November 09, 2001 - 10:08 PM
     
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    Bergisch Gladbach, On February 22, 2000, and effective January 1, 2000, the company acquired all of the outstanding shares of Dr. Meleghy GmbH & Co. KG Werkzeugbau und Presswerk, Bergisch Gladbach (``Dr. Meleghy''). Dr. Meleghy designs and produces structural stampings, assemblies, exposed surface panels and modules for the European automotive industry. Dr. Meleghy operates three facilities in Germany and one facility in both Hungary and Poland. Its main customers include DaimlerChrysler, Audi, Volkswagen, Ford, Opel and BMW.}

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      Press Relase: Where the action is
    Posted by: God on Friday, November 09, 2001 - 10:07 PM
     
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    Detroit, center of the American automobile industry, was the location chosen by Schuler for its new US headquarters, due to open in early 2001. The new focal point of Schuler's US operations will also house the company's Hydroforming Tech Center for the USA. After expanding its hydroforming facilities in Wilnsdorf, Germany, the new facility represents a further step toward increased customer proximity for hydroforming partnerships. In the first phase of the new development, 15 hydroforming specialists in Detroit will set about developing ready-to-manufacture hydroforming parts together with users from the automotive and fittings industries. The new production and assembly halls will feature three hydroforming presses with a maximum die closing capacity of 85000 kN (9450 U.S. tons) for prototyping and small batch manufacturing of complex hydroformed parts.



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      Process and Tool Technology for Hydroforming: Case Studies & Technical & Economi
    Posted by: God on Friday, November 09, 2001 - 10:05 PM
     
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    by Dr.-Ing. Alfons Böhm of Siempelkamp Pressen Systeme, Krefeld (Germany)
    and Tony Abbey of Siempelkamp Pahnke Engineering, Springfield - OH (U.S.A.)

    Process and Tool Technology for hydroforming

    Contents

  • Introduction

  • Design guide lines of starting parts for hydroforming

  • Planning of complex preforming processes

  • Quality of hydroformed workpieces

  • Quality of workpieces and tools

  • Achievable workpiece quality

  • Some characteristic features of hydroforming parts

  • Economy

  • References


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      State of the art and perspectives of hydroforming of tubes and sheets
    Posted by: God on Friday, November 09, 2001 - 10:03 PM
     
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    by Prof. F. Vollertsen, Department for Metal Forming Technologies, University Paderborn, Paderborn, Germany

    Hollow parts of high accuracy and high strength can be produced by forming methods using liquid media. Hydroforming of tubes has reached a high standard for small parts (volume some 1000 cm3) and is further developed for larger parts (volume some 10.000 cm3). Processes for hydraulic sheet metal forming are sometimes used for small parts from single sheets. These processes are currently under intensive investigation, which is also true for the processing of double layered sheets. Single sheets can be formed using membranes which separate the workpiece and the liquid. This results in interesting possibilities for a part and process integration in one step. The forming performance of aluminum alloys can be enhanced by using a heated liquid media when forming without membranes.

    1. Introduction
    For the manufacture of thin walled parts there are two principle possibilities, casting and forming. Cast products have advantages concerning complex shaped geometries, but are less good concerning accuracy and mechanical properties. Therefore, a large amount of parts is produced by metal forming, starting from sheet metal or tubes, which in turn are often made from sheet metal. The most important method concerning the cycle time, realized number of variants in geometry, and number of parts is deep drawing.

    In deep drawing a sheet is pushed into a deep drawing die using a punch, see Fig. 1. The process is well established, but has some limitations, if hollow parts or small lot sizes are to be produced. Undercuts can not be realized by conventional deep drawing, the manufacture of hollow parts is done by deep drawing of at least two shells and welding them after forming. This leads to undesirable long process chains with high efforts necessary for the aligning and clamping before welding [1]. Production of small lot sizes is costly as the stiff deep drawing tools must be thoroughly aligned in the press and time consuming try out is necessary before the first production run. In order to overcome these limitations, forming methods with hydraulic liquid media are established.

    Tube hydroforming, as shown in Fig. 1, is well known for a long time. As no distortion by thermal welding after forming is introduced, products of high accuracy result from this process. On the other hand, the cycle times are significant larger than in deep drawing. These long cycle times reduce the cost saving effects which are attributed to hydroforming.

    These cost savings are due to part and process integration. For example, 14 deep drawn parts for a car body can be substituted by one hydroformed part [2]. Processes like piercing can be integrated into the forming tool. This results in high cost savings for tools and labor costs for the machine operator. In the case of an engine cradle this effect saves 60% of tool costs. Due to the longer cycle times the cost savings for the part were only 20%, but the weight was also reduced by 30%, yielding an additional benefit of the hydroformed part [3].

    From tubes, having – per definition – a constant cross section along the length axis, it is difficult to produce parts having large differences in the cross sectional contour along the length. The cross sectional contour can essentially only be increased by the hydroforming process. Due to the limited elongation of engineering materials, the increase in diameter and therefore the changes in cross section is limited to approx. 100%. Parts having larger differences can be manufactured from welded or unwelded sheets [4-7]. Sheet metal forming by hydraulic media is not restricted to closed hollow parts. It is also favorable used for production of small lot sizes, as the liquid adapts automatically to the stiff tool. This makes tool installation easier, resulting in remarkable cost savings at least for lot sizes less than 20.000 parts.

    2. Definitions
    In the current literature a large number of names exist, which refer to forming methods using liquid media. Hydroforming, low or high pressure forming, fluidform and so on are some of these words. While the German engineering association (VDI) has prepared standards for the definition of these expressions [8], there is a lack of such standards for the English language. In order to avoid confusion, a definition is given for the most important expressions, which is valid at least for this paper

    hydroforming: forming method for thin walled parts using a liquid medium to introduce the forming stress in the surface of the part. Other words which are used for that are e. g. high internal pressure forming, high pressure forming, low pressure forming.

    profile: raw part having an arbitrary cross section which is constant along the straight length axis of the part.

    tube: profile having an annulus as cross section.

    tube hydroforming: hydroforming process starting from a piece of a tube.

    hydraulic sheet metal forming: Methods of sheet metal forming for manufacture of open or closed hollow parts, starting from sheet metal and using a medium (liquid, optional separated from the part by a thin rubber-like membrane) on one side and a stiff tool on the other side.

    calibration: Hydroforming process without intended or considerable axial flow of the material. In tube hydroforming calibration leads to a local increase of the diameter of the part, often characterized by a plain strain forming mode.

    3. Tube hydroforming
    Figure 2 shows an approach to systematize the parts made by tube hydroforming. Tube hydroforming is intensively used for mass production in fitting industry. These are referred as tubular components, as the geometry is not very complex and the origin from a tube can be seen easily.

    The parts for interior installation like water conduits are often made from copper, which has good forming capabilities. As the geometry is often a simple T-piece with short ends, forming is easy and can be done far away from the process limits. That is a precondition for the application of multiple dies, were 4, 8 or 16 parts are made simultaneously.

    Sanitary appliances like hotheads are made from brass tubes by bending and calibration. Pipeline components, the T-piece in Fig. 2 has a diameter of approx. 500 mm, valve housings and so on are other examples for tubular components.

    Structural parts, mostly applied in automotive industry, are of significant higher complexity. They often have a large number of openings, a multiple bend length axis and a wide variety of cross sections. They also may have flanges to enable welding of other components. State of the art is the manufacture of exhaust systems which comprise single walled T-pieces like shown in Fig. 2.

    New developments in the field of exhaust systems are the manufacturing of double-walled parts. The principle patented in [9]. After preforming a two stage hydroforming is employed, which first forms the inner (and the outer) tube. The outer tube is formed in the second stage, while the shape of the inner tube remains unchanged as a hydrostatic pressure acts on it. A central feature of this technology is the sealing.

    In the field of frame and chassis parts tubes up to length of 4 m, having a diameter of more than 200 mm are processed. Piercing of multiple holes in the hydroforming tool at the end of the process is standard. As hydroforming is used to realize light weight concepts the forming of aluminum alloy profiles is also investigated. Many applications restrict to calibration of bent profiles, e. g. profiles for a space frame car are calibrated by hydroforming. Due to the difficulties to form sharp edges it is also worthwhile to use extruded profiles as starting material. It was shown that forming of such profiles into T-pieces is possible, but has its specific problems [10].

    4. Hydroforming of sheets
    4.1. Membran method

    A large amout of patents, especially in Germany, is focussed on the forming of single or double sheets using a liquid medium. Fig. 3 is an attempt to systematizise these methods.

    Methods which basically push the sheet into a hollow stiff die by the action of the liquid are summarized as hydrostatic forming methods. These methods are suitable for the manufacture of flat parts. Deep hollow parts, having drawing ratios larger than 3, can be produced by the hydromechanic methods. The sheet is pushed using a stiff punch into the pressurized medium. The third class of methods are developed to form hollow parts, starting from welded or unwelded sheet pairs. The geometry which can be achieved by this methods is like to those of hydroformed tubes, but with the extension that larger differences of the diameter along the length axis are permitted

    Figure 4 shows in the upper left corner one variant of the hydromechanic methods, which uses membranes to separate the liquid from the workpiece [11, 12]. It is called MULTIBRAN method, as it uses multiple membranes instead of a single membrane as known from the fluidform method. The advantage of using membranes is that sealing is significantly easier. There is no need for sealing the edge of the blank against the pressurized region. Therefore the closing force is easy to control and drawing of blanks having steps due to different thickness (tailored blanks) or even simultaneous drawing of multiple blanks is suitable.

    This potential is demonstrated by deep drawing the cup and lid of a can as shown in Fig. 4. Both parts (cup and lid) are deep drawn, trimmed and calibrated in one step simultaneously. Despite the differences in sheet thickness of the two parts (see Fig. 4) it is a stable robust process, which is now repeated for some 100 times. Tool changes are made within some minutes. This shows the capability of the process with respect to flexible manufacturing.

    In order to investigate the process stability, tests forming a wedge shaped part were run. Some series of steel parts schematically shown in Fig. 5 were drawn and the sources for inaccuracies were analyzed. The most significant source was the arbitrary shift of the asymmetric draw in of the blank, which can be characterized by the difference in the flange width after forming. As the part itself is asymmetric, the draw in is also. But the size of the asymmetry shows some significant scatter. Due to the scatter in length the radial stresses seem to vary, which in turn affects the spring back and the inner length dimension L of the part. The sources for the scatter in asymmetric draw in may be positioning errors of the raw part in the tool or changes of the draw in due to differences in friction at the beginning of the process.

    4.2. Warm forming of aluminum sheets

    There are many well known advantages of aluminum alloys concerning the application for structural parts. One of the disadvantages is the worse formability compared to steel. It was shown by a couple of researchers that the global or local heating of aluminum sheets can enhance the formability significantly. As the temperatures necessary are below 350°C it seams feasible to use heated liquid medium to do a warm forming. This was shown in [13] for welded blanks.

    Significant enhancements in stretch forming can be seen from experiments documented in Fig. 6. An Al alloy sheet was rigidly clamped near the edge and stretch formed by hydraulic pressure. Due to the geometry and the friction effects a strain mode near plain strain develops at the longer side of the rectangular cup. Failure occurs early for room temperature experiments, while forming with heated medium (note that the tool was not directly heated) makes significant larger strains possible. From a comparison of the wall thickness distribution after forming, which can be seen in Fig. 7, the advantages become obvious.

    The thickness distribution for the cold drawn sheet shows a nearly constant thickness of 1.3 mm in the center region of the part. The formability capacity of this region is not used for the forming process, failure occurs early.

    The thickness distribution for the warm formed specimen was measured on a sample without failure. Therefore the wall thickness could be further reduced in the center, where it lies in the same order of magnitude of that of the (burst) room temperature sample in the edges. The thickness distribution can be understood from the mechanical and thermal history. Just before sealing by application of the closing force the sample is preheated for some seconds by heated liquid which flows from below the sample. As the tools are not heated actively, the sample cools rapidly down after contact especially with the cold upper tool under load (the lower tool is indirectly heated by the hot medium). The hottest area is in the center of the workpiece. Due to that, forming begins in this region. After the top gets in contact with the tool, the sheet cools down at this position and friction effects occur, which obstruct further thickness reduction. The forming zone is shifted to the neighborhood regions, but sheet thickness reduction becomes increasingly difficult as the temperature decreases due to the cooling effects from the flange and the top of the part. Finally, stretch forming of the remaining (nearly cold) edge regions sets in.

    From these experiments it was concluded that warm forming using heated medium promises better formability of the parts. Additional active heating of the tools or passive heating in a production process with short cycle times would enhance the temperature field in the sample and therefore the overall thickness distribution.

    Acknowledgements
    The author gratefully acknowledges Dipl.-Ing. R. Breede and Dipl.-Ing. T. Prange for the preparation of the results.

    References

    [1] Hein, P.; Vollertsen, F.: Hydroforming of sheet metal pairs. J. of Mat. Proc. Tech. 87 (1999) 154 - 164

    [2] Bruggemann, C.J.: Hydroumformung von Strukturteilen für Automobile. Hydroumformen von Rohren, Strangpreßprofilen und Blechen. Hrsg. K. Siegert, Matinfo Frankfurt 1 (1999) 421 - 439

    [3] Giering, J.: Astra Vorderradträger - 1,5 Jahre Hydroforming-Erfahrung. Hydroumformung von Rohren, Strangpreßprofilen und Blechen. Hrsg. K. Siegert, Matinfo Frankfurt 1 (1999) 455 - 460

    [4] Schaefer, A.W.: Internal high-pressure forming process and apparatus. US Patent 5,711,059 (1995)

    [5] Geiger, M.; Vollertsen, F.: Verfahren zum Her­stellen von schalenförmigen Hohlstrukturen aus ge­doppelten Blechzuschnitten mittels Innenhoch­druck­umformen. Offenlegungsschrift 195 26 709.5 (1995)

    [6] Schmoeckel, D.; Hielscher, C.; Prier, M.: Developments and perspectives of internal high-pressure forming of hollow sections. Advanced Technology of Plasticity, Proc. 6th ICTP. Ed.: M. Geiger, Springer Berlin 2 (1999) 1171 - 1182

    [7] Geiger, M.; Müller, B.: New technologies in sheet metal forming for light-weight construction. Sheet Metal, eds. H.J.J. Kals, B. Shirvani, U.P. Singh, M. Geiger, University of Twente, Enschede I (1996) 3 - 14

    [8] VDI: Innenhochdruck-Umformen: Grundlagen. VDI Richtlinie 3146, Blatt 1 (1999)

    [9] Wells, G.L.; Dehlinger, J.R.; Rigsby, D.R.: Multi-stage dual wall hydroforming. US Patent 5,363,544 (1993)

    [10] Vollertsen, F.: Umformen strukturierter Rohteile. Umformtechnik 2000 plus. Hsrg. M. Geiger, Meisenbach Bamberg (1999) 365 - 379

    [11] Vollertsen, F.; Breede, R.; Lange, K.: A method for deep drawing with multiple elastomer mem­branes. Anals of the CIRP 48,1 (1999) 221 - 226

    [12] Breede, R.; Vollertsen, F.: Friction in deep drawing using multiple elastomer membranes. Advanced Technology of Plasticity. Ed.: M. Geiger, Springer Berlin 3 (1999) 2163 - 2168

    [13] Rösch, F.: Verfahren zum Umformen von flachen Werkstücken. Deutsches Patent DE 195 31 035 A1 (1995)

    [1] This contribution was held at the ISMST 2000, June 4.-6. (2000) in Harbin/PR China

    Published with permission of Prof. Dr. F. Vollertsen.


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      Tubular Hydroforming: The Enabling Technology
    Posted by: God on Thursday, November 08, 2001 - 11:59 PM
     
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    by: Richard A. Marando (Dana Corp.)

    During the past nine years, general awareness of hydroforming has grown steadily. Although interest in tubular hydroforming is wide ranging, the vast majority of new high-volume applications are in the automotive industry.

    In 1990, Chrysler Corp. introduced the first high-volume hydroformed component to the North American automotive market -- an instrument panel beam on its minivan platform. Today, hydroformed components can be found in a wide variety of automotive applications.

    Current Automotive Applications

    Body Systems = Instrument Panel Beams, Radiator Enclosures, Seat Frames, Side Roof Rails, Roof Bows, Body Side Rails, Roll Over bars
    Chassis Systems = Front Engine Cradles, Rear Cradles, Ladder Frames, Hitch Bars, Bumper Beams
    Steering & Suspension = Control Arms, Trailing Links, Steering Columns
    Engine & Drive Line = Exhaust Manifolds, Cam Shafts, Driven Axle Housing

    It is said that every new technology requires a killer application for it to become truly successful. For the personal computer (PC) industry, that killer application was the spreadsheet. The business community embraced this new technology because it promised greater accounting accuracy, lower processing cost, and faster response time.

    In doing so, it created demand that forced PC makers and software developers to accelerate development as they competed for market share. Each evolutionary step yielded faster machines running more powerful programs at a lower cost, which created new demand to fuel the next step. This cycle continues for an industry that today has sales in excess of $800 billion per year (1).

    A similar process is underway within the tubular hydroforming industry.

    The killer application that allowed tubular hydroforming to become truly successful was the automotive chassis – the framework that holds together the basic parts of a car. While chassis designs vary, all are driven by the same fundamental design criteria -- to provide maximum stiffness, dimensional stability, fatigue life, and crashworthiness with minimum mass and cost.

    Automotive chassis engineers embraced tubular hydroforming because it allowed them to make their designs more effective. Consequently, the demand for tubular hydroformed components has grown dramatically. This increased demand has forced hydroform equipment producers and chassis system suppliers to accelerate development efforts as they compete for market share.

    Historically, chassis structures were produced from assembled stampings. Assembly methods evolved from bolting and riveting to welding, but little else changed until 1994, when Ford Motor Company introduced the first tubular hydroformed engine cradle to the North American market in its Contour / Mystique models. The growth of tubular hydroforming in chassis systems during the past five years has been astounding. By some estimates, 50 percent of the vehicles produced in North America by the year 2004 will have chassis with hydroform content.

    Thinking back to the PC analogy, the spreadsheet was the spark that lit the fuse, but PCs and the applications they run have changed our lives in ways that most of us could not have imagined 10 years ago. Tubular hydroforming has similarly taken a step up the evolutionary ladder. Today, more powerful, faster, and less expensive hydroforming machines allow chassis system suppliers to provide more effective applications of the technology.

    What is the next killer application for tubular hydroforming? The answer to that could lie with a vehicle structure commonly referred to as the spaceframe.

    A spaceframe is a series of structural members assembled to create a skeletal system that supports the interior systems, as well as the exterior skin and drive line components of an automobile. Spaceframe architecture has been around for a number of years, but its use has been confined to ultra-low-volume, niche vehicles.

    Currently, the majority of mass-produced vehicles are built with either body-on-frame or unitized body architecture.

    The body-on-frame architecture predates the automotive industry itself and is still widely applied in the light truck, sport utility, and full-size luxury car markets. It involves a structural platform, commonly referred to as a ladder frame, tuned for desired structural performance, to which the drive line, suspension, and body subsystems are mounted. The body is typically floated above the platform on rubber pads to further improve isolation of the passenger compartment. The ladder frame is typically constructed of stamped welded members and is the primary load-carrying element in the vehicle system.

    Unitized body or unit-body vehicle architecture integrates the body and the frame so that only small engine cradles or structural crossmembers are required to distribute concentrated loads into the body system. The body itself is tuned to the desired structural performance and functions as the primary load-carrying element in the vehicle system.

    To understand why spaceframe architecture is likely to gain prominence in the North American market, some of the issues original equipment manufacturers (OEMs) are facing should be understood:

    1. Government Regulation. Corporate Average Fuel Economy (CAFÉ)

    Regulations have put a tremendous strain on North American automotive producers.

    In an age when a gallon of gas costs less than a bottle of drinking water, the average consumer is unwilling to give up size, performance, or safety in favor of fuel economy. To meet CAFÉ regulations and contradictory customer expectations, engineers must develop more efficient power sources and lighter-weight vehicles.

    2. Safety. More demanding crash test standards and greater customer awareness of vehicle safety have challenged OEMs to improve occupant safety without sacrificing fuel economy. Many consumers equate vehicle safety with specific features like air bags and safety belts, yet size and weight are among the best indicators of how well a vehicle protects its occupants.

    The laws of physics dictate that larger, heavier cars protect their occupants better than smaller, lighter cars (2).

    3. Vehicle Performance Characteristics. Customer expectations for acceleration, ride, and handling are on the rise, as are speed limits. The average speed limit on U.S. highways is 68.5 mph. Like autobahn-inspired European designs, North American vehicles must get lighter and stiffer to keep pace with customer expectations for vehicle performance.

    4. Speed to market. It is common to hear of new vehicle platforms that took four to six years to produce rolling onto show room floors to poor reviews and less-than-anticipated sales. Vehicle performance characteristics, styling, and projected market demand are established at the beginning of the development process. The longer it takes to get a vehicle from concept to production, the higher the risk customer expectations will change or unfavorable market conditions will evolve. To ensure success of future vehicle platforms, OEMs are working to cut development cycles by 50 percent or more.

    To recap, OEMs must develop more efficient, safer, faster, lighter, and stiffer vehicles in less than half the time it has taken in the past. Viewed in its entirety, this could be seen as a problem with no satisfactory solution. However, broken into its elements, there is hope.

    Spaceframe architecture is by no means the total answer. However, it likely will be a key element. A marked increase in spaceframe development activities is underway at most of the major OEMs.

    The United States Council for Automotive Research - Partnership for a New Generation Vehicle (USCAR - PNGV) -- was launched to develop technologies necessary to support the next generation of fuel-efficient vehicles. Its members include General Motors, Ford, Daimler-Chrysler, and the U.S. government. It is one of the many organizations around the world exploring spaceframe architecture. On its Web site ( http://www.uscar.org/pngv/statement/accomp3.htm ), the group report a 50-percent weight reduction derived from a steel spaceframe design that promises lower manufacturing cost and lower investment than traditional architectures.

    Ultra Light Steel Auto Body (ULSAB) is a consortium of 35 steel producers who are united in an effort to develop a lightweight steel body system by combining high-strength steels and advanced manufacturing technologies.

    Its initial design direction was a hydroform-intensive space frame. However, the consortium opted for a conventional unitized body architecture to ensure credibility of its efforts in the eyes of mainstream OEMs.

    Speaking at a recent hydroforming conference, Robert Koer of Porsche Engineering Services, engineering manager for the ULSAB project, said he believes that spaceframe architecture offers a viable alternative for lightweight steel autobodies.

    The United Kingdom-based Solvo 6 is a consortium of Rover, various automation and equipment producers, and the UK government that has joined together to develop flexible, low-cost automation for assembling space frame structures. Several universities and independent companies also are conducting research in this field.

    So why is spaceframe architecture not already in widespread use in North America? To some extent, the answer is resistance to change. However, the primary issue is that spaceframe structures have proven difficult to cost-effectively mass-produce. The difficulty in making the transition from the craft shop to the high-volume assembly line has three roots: dimensional instability, design inflexibility and manufacturing cost.

    A tubular part, be it extruded aluminum or rolled steel, has a constant cross sectional shape that may be efficient and appropriate at one location on a part but inefficient and inappropriate at another. This design inflexibility, in many cases, yields a structure that is not fully optimized.

    As dictated by the extrusion and tube rolling processes, tubular members are produced in straight lengths. To accommodate typical vehicle assembly processes, the straight tubular members often must be bent or reshaped. Common bending and reshaping processes induce part-to-part variation that exceeds what is typically acceptable for an automated assembly line. For extruded aluminum tube, dimensional instability inherent to the extrusion process alone can exceed what is typically acceptable for automated assembly processes.

    The inability to fully optimize the structure, the additional labor needed to overcome dimensional instability, increased rework, and higher scrap rates all drive manufacturing costs. Connecting other vehicle subsystems to the spaceframe can be cumbersome and costly as well. Niche vehicle producers can save money because their substantially lower investment for spaceframe structures offset the higher manufacturing cost. However, for a mass-produced vehicle, higher manufacturing costs can quickly overshadow investment savings. Spaceframe structures could not have bridged the gap between niche production and mass production without the resolution of these issues.

    Tubular hydroforming allows engineers to optimize their designs through cross sectional reshaping and perimeter expansion. It also can produce parts with greater dimensional stability than is required for automated assembly. These attributes, combined with the ability to inexpensively perforate holes required for vehicle subsystem interface, make hydroforming the enabling technology for spaceframe architecture in mass produced vehicles.

    This emerging trend is evident at Audi AG, which is preparing to launch its second-generation spaceframe on its AL2 platform. It goes into production this year at a volume of 70,000 annually, more than three times the volume of the first-generation A8 spaceframe. The AL2 is the first tubular spaceframe vehicle to jump the gap between niche and mass production. While the A8 model did not employ tubular hydroforming, the AL2 has 11 hydroformed components.

    By some estimates the market potential for hydroforming in body systems is roughly three times that of chassis systems. If early signs are any indication, the demand for tubular hydroforming in body systems will drive the technology up another rung on the evolutionary ladder.

    Richard A. Marando is Chief Engineer for hydroform development with Parish Division of Dana Corp., Robeson & Weiser Streets, P.O. Box 13459, Reading, Pennsylvania 19612, phone 610-371-7070, fax 610-378-7508, e-mail rich.marando@dana.com . Parish manufactures automotive structural components, including frames, engine cradles, and components for body-in-white systems.

    Source:

    1. Information Technology Industry Council report, "GLOBAL INFORMATION TECHNOLOGY INDUSTRY REVENUES TOP $1 TRILLION" August 6,1998: (http://www.itic.org/) news room / 1998 press releases.

    2. American Automobile Manufacturers Association report, "Size Determines Safety." / Safety / Size Determines Safety




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      Press Relase: TRUMPF Group has acquired full control over PULZER
    Posted by: God on Sunday, November 04, 2001 - 10:31 PM
     
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    Ditzingen, May 2001 - The TRUMPF Group has acquired full control over PULZER GmbH + Co. KG, the Reutlingen manufacturer of tube bending machines, effective May 1, 2001. Since the beginning of 2000, TRUMPF has owned a majority share of 75% of the machine manufacturer and has now, as was planned, bought the remaining 25% of the shares. These were previously held by the founding family Pulzer.

    TRUMPF's participation in PULZER has proven to be an important synthesis of complementary technologies. As one of the world's largest manufacturers of machine tools and market leader in the field of lasers for industrial fabrication, TRUMPF possesses extensive expertise in the laser machining of tubes and profiles. TRUMPF PULZER is a leader in the area of computer-controlled tube bending and tube-end forming machines.Sophisticated tube bending techniques are, among other things, an important prerequisite for the hydroforming of tubes - a leading-edge technology, especially in the automobile industry.

    During the past year, the two companies together have been able to offer customers a broad range of complementary technologies surrounding the machining of tubes and profiles. TRUMPF's sales and service networks have provided the necessary worldwide market presence. This will yield a significant increase in revenues during the current fiscal year. TRUMPF PULZER employs a staff of about 100 and now belongs to the laser technology division of the TRUMPF Group.



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      Interlaken's New Hydroforming Press
    Posted by: God on Sunday, November 04, 2001 - 10:21 PM
     
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    Interlaken Technology Corporation
    7600 Golden Triangle Drive
    Eden Prairie, MN 55344
    U.S.A.

    phone: +1 (952) 942-7499
    fax: +1(952) 942-7599
    contact: Dan Prill
    e-mail: dprill@interlaken.com
    internet: http://www.interlaken.com

    Interlaken's New Hydroforming Press Produces High Quality Parts Using High Precision Control!

    Eden Prairie, MN --- Interlaken Technology Corporation offers a new Hydroforming Press for use in production or process development applications. It is computer controlled hydraulic press with data acquisition that uses a high-pressure liquid to hydroform materials. Interlaken's Hydroforming Press was designed to embrace both tube and sheet hydroforming applications.



    The Hydroforming Press is equipped with Interlaken's UniPress Control System for reliable and precise control over the hydroforming process. Easy to use Windows compatible interface software enables users to build motion and force profiles designed to fit specific forming needs. The multi-channel closed loop control system is easily programmed to handle event as well as time dependencies.

    The control system offers dynamic mode switching which enables the user to switch between a variety of feedbacks such as force, position, internal pressure and other system variables.

    Hydroformed parts are stronger and weigh less due structural integrity and fewer welds or add-on pieces. In addition, costs are reduced and time is saved by eliminating secondary operations, reducing scrap, lowering material and manufacturing costs, and increasing design flexibility. With superior control over forces and motions, Interlaken's Hydroforming Press provides a greater overall quality of formed parts.

    A dual operation mode provides enormous flexibility. The Learning/Research Mode determines tool and die specifications, measures and optimizes processes, and programs forces and motions. The Production Mode runs the optimized profile while monitoring and recording process variables.

    For over 20 years, Interlaken Technology Corporation has been designing, engineering and manufacturing servo controlled production equipment with sophisticated controls and monitoring software. It is this experience and knowledge that allows us to provide you with the best possible solutions for your test and production press equipment. Interlaken offers an extensive warranty and solid service and technical support.





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