Cup-drawing formation of steel sheet with nickel coating by finite element method

摘要：

The finite element method (FEM) simulation of deep-drawing of steel sheet with nickel coating based on the solid element and dynamic explicit method was reported.Penalty function method was used to treat the contact algorithm.The friction between the punch and coating sheet was based on a Coulomb formulation.The combination of coating and substrate was defined as tied with failure contact.The results of the simulation illustrate that the steel sheet and the nickel coating do not delaminate at the interface.The stress field of the nickel coating is more complicated than that of the steel substrate.Furthermore,it is found that the punch-nose radius is the most unsubstantial part for the intensity of the entire deep-drawing part and the thinnest part,it is a dangerous zone for the break.At this zone,the thickness thinning of the steel sheet and the nickel coating are up to 4.8％ and 6.7％,respectively.Meanwhile,it is found that the curve of the variable blankholder force (VBHF) designed can improve the formability of sheet.

关键词： electrodeposited nickel coating solid element finite element method variable blankholder force

作者: ZHANG Xiao-bing LONG Shi-guo MA Zeng-sheng PAN Yong ZHOU Yi-chun

作者单位: Key Laboratory of Low Dimensional Materials and Application Technology,Ministry of Education,Faculty of Material and Photoelectronic Physics,Xiangtan University,Xiangtan 411105,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）