0

Full Content is available to subscribers

Subscribe/Learn More  >

Hot Gas Forming for Advanced Tubular Automobile Components: Opportunities and Challenges

[+] Author Affiliations
Dirk Landgrebe, Frank Schieck

Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Saxony, Germany

Paper No. MSEC2015-9204, pp. V001T02A087; 8 pages
doi:10.1115/MSEC2015-9204
From:
  • ASME 2015 International Manufacturing Science and Engineering Conference
  • Volume 1: Processing
  • Charlotte, North Carolina, USA, June 8–12, 2015
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-5682-6
  • Copyright © 2015 by ASME

abstract

Today most industrial sectors are faced with several challenges such as the reduction of CO2 emission, the shortage of resources and the increasing individualization of products. This situation particularly appears in the automotive industry. To reduce CO2 emission of cars there is no alternative to decreasing weight. Advanced lightweight design implies new materials, innovative component design and finally new production methods. Based on this not only the CO2 emission during the operation phase becomes a focus, also the manufacturing process becomes more and more important.

Following upcoming requests for lightweight materials, new design principles and energy and resource efficient production processes, conventional forming technologies are reaching their limits. By including temperature as an active temperature parameter into the production process, advanced final component properties are possible, forming limits can be extended and process chains can be shortened.

This is valid particularly for hydroforming. Advantages and disadvantages of this technology are well known, and today there are a few typical automotive components in series production. Compared to a blank half shell design of car components, hydroformed profiles allow a flangeless design, the reduction of individual parts in a component and an excellent degree of material utilization. To implement high temperatures into this technology, alternative heat-resistant forming media are mandatory. The substitution of water by nitrogen increases the thermal process limits up to 1,000°C, but this also requires new systems engineering.

This paper gives an overview on the development of hot gas forming technology and illustrates prospects and limits by means of automotive-related parts for metallic lightweight materials such as ultra-high strength and stainless steel, Aluminum or Magnesium. Beside the determination of temperature-related material characteristics, the research focused on process and tool design based on thermo-mechanically coupled FE simulation. The consecutive manufacturing of prototyping parts allows the validation of simulation results and assesses the prospects to shorten existing process chains in the future.

Copyright © 2015 by ASME
Topics: Automobiles

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In