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Title:Optimization on stamping process parameters for zirconium alloy sheet strip based on orthogonal experiment
Authors: Deng Zhenpeng Zhou Dianwu Jiang Pengsong Wu Danhua 
Unit: Hunan University 
KeyWords: zirconium alloy stamping performance fracture orthogonal experiment safety margin 
ClassificationCode:TG386.42
year,vol(issue):pagenumber:2019,44(9):12-16
Abstract:

In order to reduce the fracture rate and improve the forming quality of stamping specimen for zirconium alloy sheet strip, the influence law of process parameters including stamping speed, blank holder force, friction coefficient and gap between punch and die on the forming quality of parts was analyzed by simulation analysis platform Dynaform and orthogonal experiment with the evaluation indexes containing the maximum thinning rate, the maximum principal strain and safety margin. The results show that among the process factors affecting the stamping of zirconium alloy, the influence of punching speed and blank holder force is small, the friction coefficient has a great influence, and the influence of the gap between punch and die is significantin. With the optimized process parameters,the maximum thinning rate decreases by 22.2%, the maximum principal strain decreases by 14.7%, and the safety margin increases by 1.5%. Drawing and bulging are the main forming process of stamping specimen, and the fracture rate of the stamping specimens for zirconium alloy sheet strip is effectively reduced by the orthogonal experiment to optimize the design of the stamping process parameters.

Funds:
国家科技重大专项课题(2017ZX06002005)
AuthorIntro:
邓振鹏(1995-),男,硕士研究生 E-mail:dengzhenp@qq.com 通讯作者:周惦武(1971-),男,博士,教授 E-mail:hnudwzhou@sina.com
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