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Title:Forming process analysis and die design on car front wall panel
Authors: Wan Zhiyuan  
Unit: The Academy of Mechanical Engineering  Shandong Huayu University of Technology 
KeyWords: front wall panel  drawing die deisgn  blank holder force  maximum thinning rate  maixmum thickening rate 
ClassificationCode:TG306
year,vol(issue):pagenumber:2024,49(4):76-81
Abstract:

 Aiming at the problems of complex forming, difficult deformation control, drawing wrinkling and cracking of car front wall panel parts, firstly, the structural characteristics of car front wall panel parts were analyzed, and based on the features of parts and the requirements of stamping, the stamping process with five passes of drawing, trimming, side trimming-side punching, punching-trimming-flanging and side flanging-flanging hole was determined. Then, the simulated calculation of the first process of drawing was conducted by numerical simulation method, and the influence law of different blank holder forces on the forming quality of parts was explored. Furthermore, the blank holder force was controlled within 550 kN, the maximum thinning rate was 30.222% in the small fillet areas on both sides of the part, and the maximum thickening rate was 11.969% outside the trimming line, which met the design requirements. Finally, based on the requirements of process design and die design, a forming die of part was designed and verified by experiment. The results show that the theoretical process design, process analysis and die design are reasonable, which can provide experience for the development of car body panel.

Funds:
山东华宇工学院校级协同创新中心“智能装备技术研发协同创新中心”资助项目
AuthorIntro:
作者简介:万志远(1988-),男,硕士,副教授,工程师 E-mail:815223128@qq.com
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