Transactions of Materials and Heat Treatment

Title：Multi-position progressive die design for automobile connecting piece

Authors： Xu Chaohui Zheng Yue Han Cuihong Qu Zhoude

Unit： School of Mechanical Engineering Tianjin University of Technology and Education

KeyWords： automobile connecting piece multi-position progressive die strip layout sheet metal forming single oblique arrangement

ClassificationCode：TG386

year,vol(issue):pagenumber：2022,47(11):201-206

Abstract：

In order to solve the difficult problems of product edging, strip layout and process sequence, the design process of the multi-position progressive die for automobile connecting piece was introduced, and based on the analysis of product structure characteristics, the solution schemes were provided according to the design requirements of the multi-position progressive die. Then, during the design process, the key processes of bending and drawing for sheet metal forming were numerical simulated by Dynaform software, and the forming quality of products under different forming schemes was predicted. Finally, the ten-position progressive die structure was confirmed,which including blanking, bending, local drawing and other stamping processes. Furthermore, the layout mode of single oblique arrangement for strip was adopted, which was sent to the die by automatic feeding mechanism and transported forward through the multi-group elastic support blocks. The forming process not only ensured the product performance, but also improved the utilization rate of materials, and the material utilization rate reached up to 51.5%. Actual production verification shows that the die performance is stable during the use process, the quality of stamping products obtained meet the design requirement, and the progressive die design is reasonable.

Funds：

国家自然科学基金资助项目（51875409）

作者简介：徐超辉（1982-），男，硕士，高级实验师，E-mail：xu-chao-hui@163.com

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