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Title:Generation algorithm of intermediate geometric configuration for progressive die of complex automotive parts
Authors: Wang Wensheng Li Gui Zou Guangming Chen Zhiping Zhou Min Tan Shenghong 
Unit: Wuhan University of Science and Technology  Guangdong Kelon Mould Co.  Ltd. 
KeyWords: progressive die  intermediate geometric configuration  intermediate reference surface unfolding  rotation unfolding  finite element inverse algorithm 
ClassificationCode:TG386
year,vol(issue):pagenumber:2018,43(2):0-0
Abstract:

 Forming of complex automotive progressive die parts requires multi forming processes. Except for the final geometric configuration of the product, the geometric configuration of the intermediate forming process is difficult to determine, and the design process is complicate and time-consuming. Therefore, an intermediate geometric configuration generation algorithm was proposed based on geometric deformation and stamping process. The algorithm consisted of intermediate reference surface unfolding algorithm and rotation unfolding algorithm. The former unfolding referred to datum plane, the expected intermediate shape was configured by the geometric transformation, and the intermediate geometric configuration was obtained by the finite element inverse algorithm to expand the predetermined region inversely. The final intermediate geometric configuration of the latter unfolding was obtained by connecting transformed profile smoothly through the segment of deformation surfaces according to features and process with different rotation axes for each section deformation surface. At last, for the stamping parts of complex automotive progressive die, the feasibility of the algorithm was verified. The results show that the proposed algorithm can realize the formation of intermediate geometric configuration for complex parts, and the high quality intermediate geometry configuration is obtained with high efficiency.

Funds:
国家自然科学基金资助项目(51505348);武汉科技大学冶金装备及其控制教育部重点实验室开放基金资助项目(2015B08);2017年度容桂科技计划项目(容桂经发(2017)27号-8)
AuthorIntro:
作者简介:王文圣(1991-), 男,硕士研究生 E-mail:1286793675@qq.com 通讯作者:李贵(1983-), 男, 博士, 副教授 E-mail:leegui2030@wust.edu.cn
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