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Title:Analysis and solution on corner wrinkling of side panel A column for automobile
Authors: Guan Laide 
Unit: Liuzhou Vocational & Technical College 
KeyWords: stamping  side panel  A column  wrinkle  AUTOFORM  suction rib 
ClassificationCode:TG386
year,vol(issue):pagenumber:2017,42(4):50-54
Abstract:

The outer side panel is one of the important parts for the automobile body, and the forming process is complex. Therefore, the wrinkling and cracking defects are produced easily in the drawing process. For the wrinkling and cracking problems at the A column corner areas of the side panel for automobile, through the analysis on stamping process of parts, deformation features of A column corner and causes of material wrinkling, the original whole stamping process was simulated by AUTOFORM simulation software by establishing the finite element simulation model. The analysis results show that the water tank surface at corner occurs severe wrinkling defects in the process of shaping, namely the third process. Furthermore, the influences regulation of increasing suction rib and adjusting blank holder force on wrinkling and cracking in the second drawing process were researched systematically, and the solutions were proposed by increasing suction rib and adjusting blank holder force at the corner of side panel A column. The accuracy of  analysis results and the effectiveness of the die repaired project are verified by production.
 

Funds:
2015 年度广西高校科学技术研究项目(KY2015YB401)
AuthorIntro:
关来德(1977-),男,硕士,讲师 E-mail:529288595@qq.com
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