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http://dx.doi.org/10.3795/KSME-A.2012.36.3.283

The Effects of Process Parameters of Multi-Stage Forming on Springback for a U-Channel made of Ultra-High-Strength Steel  

Suh, Chang-Hee (Daegu Mechatronics & Materials Institute)
Jung, Yun-Chul (Daegu Mechatronics & Materials Institute)
Lim, Yong-Hee (Shinhwa)
Yun, Hyo-Yun (Shinhwa)
Lee, Kyung-Hoon (Solution Lab.)
Kim, Young-Suk (School of Mechanical Engineering, Kyungpook Natl. Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.3, 2012 , pp. 283-288 More about this Journal
Abstract
Ultra-high-strength steels (UHSSs) are widely used for lightweight automobile parts, and the control of springback is very important in sheet-metal forming. The object of this study is to verify the effects of multi-stage forming process parameters for U-channel-type automobile parts made of UHSS. Finite element analysis is carried out to predict the formability and springback. The main parameters considered for the multi-stage forming process are the die angle, die radius, and punch-forming direction. It is shown that multi-stage forming is very effective for reducing springback, and that a small punch-forming angle and die radius reduce springback, whereas the die angle does not have a large effect.
Keywords
Ultra High Strength Steel; Springback; U Channel; Multi-Stage Forming; Finite Element Analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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