Transactions of Materials and Heat Treatment

Title：Optimal design of halfopen draw bead of Bpillar reinforced plate

Authors： ZHU Qu-cai WANG Cheng-yon TIAN Zhi-cheng ZHANG He-ning FU San-ling

Unit： 1．School of Materials Science and Engineering Hefei University of Technology Hefei 230009 China 2. FUJI RAYHOO EG. INC. Wuhu 241009 China

KeyWords： B-pillar reinforced plate draw bead orthogonal test optimal design

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2013,38(2):26-30

Abstract：

Addendum of drawing process was designed through analyzing the structural feature and formability of B-pillar reinforced plate. The research shows that halfopen draw bead can achieve better forming quality by comparing three layouts of the close draw bead, half-open draw bead and open draw bead in the corner and middle part of B-pillar reinforced plate. The magnitude of the resistance of the four draw beads was optimized via orthogonal test, which had greater impact on the forming of B-pillar reinforced plate, and taking minimum thinning as optimization objective, a better combination of four draw beads resistance coefficients was adopted. The forming defects of B-pillar reinforced plate were largely prevented with the optimized process obtained from this research and qualified product was obtained.

Funds：

国家自然科学基金资助项目（51275146）；安徽省自然科学基金资助项目（1208085ME71）;国家级大学生创新资助项目（201210359008）

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