Transactions of Materials and Heat Treatment

Title：Research on springback of dished head 304L

Authors： Zhang Hailong1 Liu Jinsong1 Wang Shoudong2 Zhang Shihong3 Yue Xiaolu2

Unit： 1.Shenyang Ligong University 2. He Nan Shen Zhou Heavy Sealing Co. Ltd. 3.3. Institute of Metal Research

KeyWords： head springback drawbead arc height instrument

ClassificationCode：

year,vol(issue):pagenumber：2016,41(1):43-47

Abstract：

The forming process of dished head was carried out by Marc software, and the displacement of each node was extracted after springback, after that the springback values of the head was obtained from the fitted curves by UG. Comparing with the result measured by the arc height instrument, the feasibility of simulating the springback of the head by Marc was verified. Combined with orthogonal test, the influences of main parameters of the rectangular drawbead on the dished head were researched and the influence mechanism of drawbead on the springback was analyzed. The results show that the residual stress and work hardening of the sheet through the drawbead are the main reason of springback, and the geometric parameters of the drawbead play a decisive role in springback, with the drawbead height h, the fillet draw bead R2 and outside groove fillet r1 greatly impacting the springback of the sheet after the drawbead.

Funds：

河南省科技开放合作项目（142106000021）

张海龙（1989-)，男，硕士研究生

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