Transactions of Materials and Heat Treatment

Title：Photoplasticity experiment research on strain distribution of cross wedge rolling

Authors： JI Liang-bo1 CHEN Fang1 ZHOU Tian-rui2(1.School of Mechanical and Materials Engineering Jiujiang University Jiujiang 332005 China 2.School of Mechanical and Electronic Engineering Nanchang University Nanchang 330031 China)

Unit：

KeyWords： cross wedge rolling photoplasticity strain distributions isochromatic line isoclinal line

ClassificationCode：TG335.1

year,vol(issue):pagenumber：2010,35(1):66-69

Abstract：

Using polycarbonate as mold material,three-dimensional photoplasticity was employed to simulate the deformation of the metal in the cross wedge rolling process.The fringes of isochromatic line and isoclinal line of slice in typical section were observed and analysed.The three-dimensional strain distributions in the inner part of cross wedge rolling was solved by Newton iterative method.It shows that the deformation distributions on cross wedge rolling are complicated three-dimensional deformation through the solved result.The deformation on part is not even.The inner deformation is large and the outer deformation is little.The asymmetric deformation will lead to the additional stress in the inner of transmutative part.Experiment results indicate that the simulation method of three-dimensional photoplasticity on cross wedge rolling is successful and it provides an effective experiment means for studying the technology of metal forming.

Funds：

Reference：

[1]胡正寰,张康生,王宝雨,等.楔横轧理论与应用[M].北京:冶金工业出版社,1996.
[2]熊毅,傅万堂,孙淑华,等.高碳钢棒件温楔横轧成形过程的有限元数值模拟[J].塑性工程学报,2006,13(5):36-40.
[3]何涛,王宝雨,胡正寰.偏心圆截面轴类零件的楔横轧成形数值模拟[J].锻压技术,2008,33(1):53-55.
[4]赵静,鲁力群,胡正寰.汽车半轴楔横轧多楔成形力能参数数值模拟与实验[J].农业机械学报,2008,39(6):184-188.
[5]闫华军,刘晋平,樊旭平,等.楔横轧轧制螺纹轴应力状态研究[J].锻压技术,2008,33(3):60-63.
[6]胡福生,王宝雨,胡正寰.凸轮轴楔横轧成形仿真与应力应变分析[J].锻压技术,2009,34(1):65-67.
[7]朱明海,范琳.现代光塑性[M].北京:国防工业出版社,1995.
[8]马振海.楔横轧基本轧制过程的数值模拟及轧件端面变形研究[D].北京:北京科技大学,2002.

Service：

【This site has not yet opened Download Service】【Add Favorite】