Transactions of Materials and Heat Treatment

Title：Numerical simulation analysis and test on stamping process for automobile flow sink

Authors： Tang Shuangqing Liu Ting Ren Yinying

Unit： School of Mechanical Engineering Anhui University of Technology

KeyWords： trident universal joint metal streamline closed extrusion numerical simulation die wear

ClassificationCode：TG386

year,vol(issue):pagenumber：2021,46(12):61-66

Abstract：

For a certain automobile flow sink, its forming process was numerically simulated by software Autoform, and its forming process was analyzed. Then, the influences of various process parameters on the drawing process of automobile flow sink were mainly analyzed, and the wrinkle, crack and other defects in the forming process of sheet metal were predicted by increasing the blank holder force from 500 kN to 800 kN and the drawbead coefficient from 0.3 to 0.7 to determine the blank holder force value and drawbead coefficient reasonably. The simulation results show that the maximum thinning rate of the forming does not exceed 0.25, the wrinkle rate of the forming area does not exceed 0.02, and the wrinkle rate and the thinning rate are within a reasonable range. Therefore, the problems that may occur during the forming process are eliminated, and the subsequent processes can be carried out smoothly. Finally, the test is carried out according to the software simulation, the obtained parts are basically same as the numerical simulation results, and the surface quality meets the standard requirement, which verifies the reasonableness of the stamping process parameters. And the material utilization rate is greatly improved, the costs are saved, and the development cycle is shortened.

Funds：

国家自然科学基金资助项目(51175297)

作者简介：汤双清(1962-)，男，博士，教授 E-mail：tang_sq@ctgu.edu.cn 通信作者：刘婷(1997-)，女，硕士研究生 E-mail：2507980893@qq.com

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