Transactions of Materials and Heat Treatment

Title：Structure design of piercing-flanging compound die for small size stamping parts

Authors： Chen Shitao Wang Hailing Li Hui Cui Lichun

Unit： Anhui Jianghuai Automobile Co. Ltd.

KeyWords： piercing flanging compound die structure design

ClassificationCode：

year,vol(issue):pagenumber：2016,41(4):82-86

Abstract：

The structure design and working principle of piercing-flanging compound die for small size stamping parts were mainly introduced. By adding internal switching mechanism including driving rod, driving block and return spring etc. in the lower die, the work state of piercing die could be switchable with the die closed gradually. So the pre-piercing and flanging processes completed in the same die at the same time were realized. The structure of piercing-flanging compound die was more compact, and it could tackle more work within a single sequence. Compared with the ordinary steel plate die, the compound die could reduce the number of processes, improve flanging-hole concentricity, realize high efficiency, and save costs in die development and later production. In addition, the internal switching mechanism could also play the role of ejection part, which improves the convenience of picking up.

Funds：

国家科技重大专项（2014ZX04002041）

陈世涛（1987-），男，学士，工程师

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