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Hydroforming Simulation of High-strength Steel Cross-members in an Automotive Rear Subframe  

Kim, Kee-Joo (CAE Team, Ssang Yong Motor Company)
Sung, Chang-Won (Department of Mechanical Engineering, Kyung Hee University)
Baik, Young-Nam (Department of Mechanical Engineering, Kyung Hee University)
Lee, Yong-Heon (Department of Mechatronics Engineering, Hanyang University)
Bae, Dae-Sung (Department of Mechatronics Engineering, Hanyang University)
Kim, Keun-Hwan (Automotive Steel Application Research Group, POPSCO Co.)
Won, Si-Tae (Dept. of Die & Mould Design, Seoul National University of Technology)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.9, no.3, 2008 , pp. 55-58 More about this Journal
Abstract
Hydroforming is a forming technology in which a steel tube is set in a die and formed to fit a specified shape by applying hydraulic pressure from inside the tube while also applying force in the tube axial direction (axial feed). In present study, the entire design process chain for an automotive cross-member was simulated and developed using hydroforming technology on high-strength steel. The part design stage required a feasibility study. The process was designed using computer-aided design techniques to confirm the actual hydroformability of the part in detail. The possibility of using hydroformable cross-member parts was examined using cross-sectional analyses, which were essential to ensure the formability of the tube material for each forming step, including pre-bending and hydroforming. The die design stage included all the components of a prototyping tool. Press interference was investigated in terms of geometry and thinning.
Keywords
Hydroforming; Cross-member; FE simulation; Bending; Thinning;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By Web Of Science : 8  (Related Records In Web of Science)
Times Cited By SCOPUS : 6
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