电沉积镍涂层冲压过程的界面特性
Interface Performance of Electrodeposited Nickel Coating in Stamping Process
摘 要
采用有限元方法对电沉积镍涂层钢带的冲压成形过程进行了数值模拟,得到了电沉积镍涂层在界面上的应力场、应变场等冲压成形特性.计算结果表明:在冲压过程中,涂层与基体界面上的应力大小、拉压性质都是变化的,且正应力一般在-50~50MPa之间,剪应力一般在-40~30MPa之间;界面上涂层中的应变比基体中的应变大得多,但两者在变形过程中是比较匹配的.
界面
冲压
electrodeposited nickel coating
interface
stamp
Abstract
Finite element method was used to simulate the stamping process for electrodeposited nickel coating by using a plane model.The stress and strain fields at the interface were obtained within the nickel coating and steel substrate.The computational results shows that the value and property for the stress at the interface were variational.Generally,the normal stress was between -50~50MPa,and the shear stress is between -40~30MPa.The strain in the nickel coating might be much greater than in the substrate.But they were approximately matchable during the stamping process.
中图分类号 TG174.44 TP15
所属栏目
基金项目 湖南省自然科学基金资助项目(04JJ40035)
收稿日期 2004/12/22
修改稿日期 2005/9/16
网络出版日期
作者单位点击查看
备注李玉平(1966-),女,湖南宁乡人,讲师,学士.
引用该论文: LI Yu-ping,ZHOU Li-qun. Interface Performance of Electrodeposited Nickel Coating in Stamping Process[J]. Materials for mechancial engineering, 2006, 30(3): 23～26
李玉平,周里群. 电沉积镍涂层冲压过程的界面特性[J]. 机械工程材料, 2006, 30(3): 23～26
被引情况:
【1】周里群,龙文宝,李玉平,毛昭明, "复合镍涂层薄板成形极限应力图的理论计算",机械工程材料 37, 87-91(2013)
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参考文献
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【2】Spaepen F.Interfaces and stresses in thin films[J].Acta Materialia,2000,48(1):31-42.
【3】Mamalis A G,Manolakos D E,Baldoukas A K.Finite-element modeling of the stretch forming of coated steels[J].J Mater Proc Technol,1997,68:71-75.
【4】Kim K J,Kim D,Choi S H,et al.Formability of AA5182/polypropylene/AA5182 sandwich sheets[J].J Mater Proc Technol,2003,193:1-7.
【5】Zhang S H,Nielsen K B,Danckert J,et al.Numerical simulation of the integral hydro-bulge forming of non-clearance double-layer spherical vessels[J].Computers and Structures,1999,70(7):243-256.
【6】Peng Y H,Ruan X Y.Interface deformation characteristics of bimetal forming[J].Transactions of Nonferrous Metals Society of China (English Edition),1998,8(1):34-38.
【7】Hauw B,Dubar L,Oudin J.Improvement of stamping computations by means of the identification of the bulk behaviour of coatings:application to galvanized sheets[J].J Mater Proc Technol,1999,94:23-29.
【8】Parisot R,Forest S,Gourgues A F,et al.Modeling the mechanical behavior of a multicrystalline zinc coating on a hot-dip galvanized steel sheet[J].Computational Materials Science,2000,19:189-204.
【9】Kim H Y,Hwang B C,Bae W B.An experimental study on forming characteristics of pre-coated sheet metals[J].J Mater Proc Technol,2002,120:290-295.
【10】Zhou L Q,Li Y P,Zhou Y C.Numerical analysis of electrodeposited nickel coating in multistage drawing processes[J].Journal of Engineering Materials and Technology,2005,127(4):233-243.
【11】周里群,周益春.电沉积镍涂层的制备及其抗冲击性能[J].材料保护,2004,(2):26-27.
【12】肖景容,江奎华.冲压工艺学[M].北京:机械工业出版社,2000.
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