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- Title
Conical tube hydro-forming design of automotive instrument panel beams using computer aided engineering.
- Authors
Kim, K. J.; Kim, K.; Kang, Y.; Park, J.-H.
- Abstract
The hydroforming technology has been spreaded dramatically in automotive industry during the last 10 years. The advantages of hydroforming (less thinning, a more efficient manufacturing process, etc.) can, for instance, be combined with the high strength of extra high strength steels, which are usually less formable, to produce structural automotive components, which exhibit lower weight and improved service performance. Design and production of tubular components require knowledge about the tube material and forming behavior during hydroforming and how the hydroforming operation itself should be controlled. These issues are studied analytically in the present paper. In this study, the whole process of automotive IP (instrument panel) beam parts development by conical tube hydroforming using a steel material having a tensile strength of 370 MPa grade is presented. At the part design stage, it requires feasibility study and process design aided by CAE (computer aided engineering) to confirm the hydroformability in details. Effects of parameters such as geometry shape in automotive IP parts on the hydroforming process were carefully investigated. The overall feasibility of hydroformable IP parts could be examined by cross sectional analyses. Moreover, it is essential to ensure the formability of the tube material on every forming step such as pre-bending, preforming and hydroforming. In addition, all the components of the prototyping tool are designed and the interference with the press is examined from the point of geometry and thinning.
- Subjects
HYDROFORMING (Metalwork); COMPUTER-aided design; STRENGTH of materials; RAPID prototyping; AUTOMOBILE dashboards
- Publication
Materialwissenschaft und Werkstoffechnik, 2013, Vol 44, Issue 5, p354
- ISSN
0933-5137
- Publication type
Article
- DOI
10.1002/mawe.201300136