Transactions of Materials and Heat Treatment

Title：Design and application of multiposition progressive die for multiangle car body sheet metal parts

Authors： Zhao Dianming Wang Li Huang Zhaoming Chenhua Shenchen

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

KeyWords： boundary error multiangle car body sheet metal parts blank layout diagram stamping multi-position progressive die

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2020,45(3):125-130

Abstract：

In the stamping process，the multiangle structure will cause the boundary error between inner hole and outer contour of part，in order to avoid the failure of progressive die technology due to the boundary error，the multiangle stamping process scheme was analyzed by taking the multiangle car body sheet metal parts as the object，and the blank layout diagram was designed. Secondly，the stamping process of parts was analyzed by using FEM (Finite Element Method)of single-station full process，and the feasibility of stamping process parameters and process scheme was verified. Thirdly，on the basis of the blank layout diagram，the structure summary and process structure of progressive die for the multiangle car body sheet metal parts were designed and a set of progressive die with thirteen positions was manufactured. Finally，through the practical stamping test，the product has good appearance quality，smooth surface and no wrinkle，crack and other formability problems，and the accuracy of the key forming positions meets the design requirements of the part drawing. The test shows that the progressive die designed can meet the production requirements of enterprise, and the design process is reasonable.

Funds：

院级科研振兴提升计划项目（ZXTS201801）；中国职业技术教育学会职业教育教学改革项目（1910293）

作者简介：赵殿明（1968-），男，学士，副教授 E-mail：3388532990@qq.com 通讯作者：黄昭明（1981-），男，硕士，副教授 E-mail：jimmymacy@163.com

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