Transactions of Materials and Heat Treatment

Title：Simulation analysis on stamping defects for 5052 aluminum alloy thin sealing plate

Authors： Lyu Zhimin1 Jiang Hao2

Unit： 1.Department of Mechatronics and Automotive Engineering Puyang Vocational and Technical College 2.Department of Electrical Information Engineering Zhengzhou University of Light Industry

KeyWords： 5052 aluminum alloy material model tensile test taguchi test maximum thinning rate maximum thickening rate

ClassificationCode：TG386

year,vol(issue):pagenumber：2022,47(9):99-104

Abstract：

For the serious cracking and high scrap rate of a 5052 aluminum alloy thin sealing plate, based on computer simulation technology, its stamping process was simulated numerically. Firstly, the mechanical property parameters and stress-strain curves of 5052 aluminum alloy were obtained by unidirectional tensile test, and the stamping material model was established by software Deform. Secondly, through the establishment of stamping simulation model, and combined with taguchi test design, the influences of stamping parameters such as stamping speed, friction coeffient, blank holder force and die fillet radius on the forming quality of thin sealing plate were studied, the evaluation function model of the maximum thinning rate and the maximum thickening rate was established by the linear weighted method, and the stamping parameters were optimized by small feature model. The optimization results show that the maximum thinning rate and the maximum thickening rate of sealing plate are improved obviously, the risk of cracking and wrinkling is reduced.And the verification was conducted by the stamping test. The cracking defects in the original process are eliminated, and the quality of sealing plate meets the design requirements.

Funds：

河南省2020年重点研发与推广专项（科技公关）项目(212102210081)

吕志敏（1978-），男，硕士，讲师 E-mail：lvzm1978@163.com

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