Transactions of Materials and Heat Treatment

Title：Finite element analysis on drawing process for cylinder parts with flange based on Dynaform

Authors： Yu Chuanhao Zhang Yi

Unit： Wuhan Institute of Technology

KeyWords： cylinder parts with flange drawing process wrinkling cracking blank holder force orthogonal test

ClassificationCode：TG386. 1

year,vol(issue):pagenumber：2022,47(2):56-61

Abstract：

For the problems of flange wrinkling and part cracking in the test die production of drawing for the cylinder parts with flange, the drawing process of cylinder parts was modeled, simulated and calculated by software Dynaform. According to the simulation results, the possible defect areas were predicted, and the key factors affecting the forming effect of cylinder parts were analyzed. In order to eliminate the defects, the influences of blank holder force, drawing speed, friction coefficient and clearance between punch and die on the flange wrinkling and the maximum thinning rate were studied. The aim was to minimum the maximum thinning rate of workpiece, the key degrees of various influencing factors on the thickness index were obtained by orthogonal test method, and combined with the influence trend diagram, the optimal combination of process parameters was obtained as the blank holder force of 700 kN, the drawing speed of 5500 mm·s-1, the friction coefficient of 0.100, and the clearance between punch and die of 2.10 mm. After the test die, the qualified products were obtained, and the flange wrinkling and part cracking problems were obviously improved. Thus, the finite element simulation results are correct and reliable, which has a certain reference.

Funds：

国家自然科学基金青年科学基金项目（51605343）

作者简介：于传浩（1972-），男，硕士，副教授,E-mail：yuchuanhao147@163.com

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