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http://dx.doi.org/10.7736/KSPE.2013.30.10.1111

Quantitative Evaluation of Shape Accuracy in a Hat-type Product with UHSS according to the Forming Procedure  

Choi, Byeung Hyeun (R&D Center, Hwashin Co. Ltd.)
Kim, Se Ho (School of Mechanical and Automotive Engineering, Daegu Univ.)
Kim, Heung Kyu (Department of Automotive Engineering, Kookmin Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.10, 2013 , pp. 1111-1117 More about this Journal
Abstract
In this paper, the shape accuracy of the stamped hat-type product is quantified and analyzed with ultra high strength steel (UHSS) sheets. The shape of the hat-type product is designed in order to simplify the geometry of the side sill and the stamping methodology is proposed in order to verify the effect of the stamping procedure on the springback amount. Experiments and finite element analyses are conducted with four kinds of the forming sequences. The springback amounts are measured and compared according to the forming procedure with the embossing shape. Experimental result in company with analysis one illustrate that the springback amount is reduced with embossing in the padding operation. They also fully demonstrates the proposed forming procedure and the analysis method can be effectively applied to the process design for producing parts with ultra high strength steel.
Keywords
UHSS; Springback; Hat-type Product; Forming Procedure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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