Transactions of Materials and Heat Treatment

Title：Design on multi-position progressive die of shell base

Authors： Yu Renping Si Guolei

Unit： Yantai Vocational College Fenghuo Machinery Factory

KeyWords： shell base multi-position progressive die spring guide plate drawing flanging

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(12):97-101

Abstract：

Multi-position progressive die is of high productivity, high speed, high quality and long life, and it is applied comprehensively to produce small and complex forming parts. The multi-position layout and dies were designed for the shell base in consideration of the difficult forming and the technical characteristics. The spring guide plate was designed additionally to improve the guiding precision. The location devices with double side blades and two pilots were designed to eliminate the positioning error, and guarantee the feeding and location precisions. Progressive strip stamping with process cut was designed to improve the liquidity of material and prevent from wrinkling and cracking. The fixed end dimension of small punch was enlarged and protective sleeve was set up to increase its strength and rigidity in order to prevent from bending and breaking in the stamping process. The die consisted of four inlays which is convenient for making and maintaining conveniently. The production results show that the product quality and productivity of shell base can be met by using multi-position progressive die.

Funds：

山东省高等学校科技计划项目（J13LB59）

于仁萍（1979-），女，硕士，讲师

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