Transactions of Materials and Heat Treatment

Title：Forming simulation and process optimization on automobile left middle side inner panel reinforcement plate based on Autoform

Authors： Jiang Xu Zhou Liuru

Unit： Nanchang University

KeyWords： left middle side inner panel reinforcement plate stamping thinning rate distribution diagram thickening diagram forming limit diagram Autoform

ClassificationCode：TG386

year,vol(issue):pagenumber：2018,43(10):47-51

Abstract：

For left middle side inner panel reinforcement plate in the light bus of a main engine factory, the structural characteristics were analyzed, and the stamping process was designed as drawingtrimming, punchingtrimming, punchingshaping and flanging. Based on the preliminary design of parameters such as blank holder force, drawbead and supplementary surface of process, the process was simulated by Autoform, and the blank holder force was determined to be 800 kN by analyzing the thinning rate distribution diagram, the thickening diagram and the forming limit diagram FLD in the simulation results. Then, the process supplementary surface was adjusted to reduce the height difference, and the drawbead was set as a fullcircle drawbead based on the boundary of part. Furthermore, the direction of drawbead was perpendicular to the flow direction of material, and the shape should be smooth to fit the notch shape of part. Finally, the qualified parts were obtained in the trial production by the optimized process parameters, and the correctness of the finite element simulation analysis was verified.

Funds：

国家自然科学基金资助项目（51465038）

姜旭(1992-)，男，硕士研究生，E-mail：1093651003@163.com；通讯作者：周六如(1963-)，男，博士，副教授，E-mail：zlrhust@163.com

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