Transactions of Materials and Heat Treatment

Title：Laser strip trial die method and its application of sheet metal parts with complex boundary

Authors： Wang Li Huang Zhaoming Hu Liyong Shen Chen

Unit： Maanshan Engineering Technology Research Center of Advanced Design for Automotive Stamping Dies Xuancheng Vocational & Technical College Department of Technology Jiuhe Mould Co. Ltd.

KeyWords： complex boundary features laser strip sheet metal part layout progressive die CAD/CAE technology

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2021,46(8):90-96

Abstract：

In order to solve the problem of out-of-tolerance between the inner and outer boundaries for sheet metal part with complex boundary features during progressive stamping, for the left and right parts of a complex boundary car body inner panel, the blank layout diagram with ten stations was designed, and based on the blank layout diagram, a single-station full-process finite element model of part was gradually established. Then, the stamping formability of sheet metal was simulated and analyzed, and the reasonable stamping process parameters and schemes were determined. Furthermore, the primary laser strip model of blank was designed by CAD/CAE technology, and the target shape of laser strip was optimized step by step through trial die, detection and laser strip redesign. The results show that after twice trial die, the qualified real stamping parts are quickly obtained, which shows that the laser strip trial die method can guide the rapid design of blanking station of progressive die for car body sheet metal parts with complex boundary, so as to improve the design efficiency of progressive die for sheet metal parts with complex boundary.

Funds：

安徽省高等学校自然科学研究重点项目（KJ2020A0837）；马鞍山市工程技术研究中心开放基金项目（QMSG202004,QMSG202005,QMSG202102）；高校学科（专业）拔尖人才学术资助项目（gxbjZD63）；校级科研振兴计划项目（ZXTS201801）

王利（1986-），女，硕士，讲师 E-mail：423547448@qq.com 通信作者：黄昭明（1981-），男，硕士，副教授 E-mail：jimmymacy@163.com

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