The effect and experiment research of forming angle on internal defect of valve roughcast formed by single cross wedge rolling

摘要：

　　Cross wedge rolling valve roughcast is charactered by minor diameter,long stretching and heavy section shrinkage; however,it is hard to select a set of suitable machining process parameter and prone to rolling internal defect.In order to research this problem,a whole forming process of valve roughcast by single cross wedge rolling is simulated with finite element simulation software DEFORM-3D 6.0,which focuses on the stress and strain of the center point of rolled piece under different forming angles.The rolling experiment under different forming angles was done on H500 rolling mill to calculate and analysis of the areas of the centre holes for each rolled piece.The influence of forming angle on internal defect is discovered by a method combining finite element simulation and experiments.At last,it is concluded that forming angle of 28°can improve the internal defect of valve roughcast formed by single cross wedge rolling.

关键词： cross wedge rolling valve roughcast internal defect forming angle heavy section shrinkage finite element simulation

作者: Xiaofei WANG Kangsheng ZHANG Jinping LIU Zhenghuan HU

作者单位: School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 389-394

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）