楔横轧变断面收缩率等内径空心轴的椭圆度分析  

Analysis on Ovality of Variable Cross Section Reduction Ratio of Hollow Shafts With Equal Inner Diameter Formed by Cross Wedge Rolling

作　　者：虞春杰 彭文飞[1] 沈法[1] 束学道[1] 孙宝寿[1] 郑书华[1,2] 

机构地区：[1]宁波大学浙江省零件轧制成形技术研究重点实验室,浙江宁波315211 [2]宁波工程学院机械工程学院,浙江宁波315211

出　　处：《热加工工艺》2015年第3期145-149,共5页Hot Working Technology

基　　金：浙江省教育厅资助项目(Y201224321;Y201327605);宁波市自然科学基金项目(2013A610043;2013A610045);国家重点实验室开放基金项目(Kfkt2013-04);新苗计划资助项目(2013R405066)

摘　　要：应用刚塑性有限元DEFORM-3D软件对楔横轧变断面收缩率等内径空心轴的成形过程进行了数值模拟。根据模拟和正交设计试验法分析结果,得到各工艺参数对变断面收缩率等内径空心轴椭圆度的影响规律和各因素对椭圆度影响的主次顺序以及工艺参数的最优水平组合。研究结果能为模具设计和工艺参数的确定提供理论依据。The forming processes of the cross wedge rolling of variable cross section reduction ratio of hollow shaft with equal inner diameter were numerically simulated by rigid plastic FE software DEFORM-3D. According to the analysis results of simulation and the orthogonal test design method, the effects of technical parameters on the ovality of variable section reduction ratio of hollow shafts with equal inner diameter, and the effect of each factor on the priority of the ovality and optimal level combination of process the parameters were obtained. The research results can provide theoretical base for determining the die design and process parameters.

关 键 词：楔横轧 变断面收缩率 正交试验设计法 椭圆度 

分 类 号：TG335.19[金属学及工艺—金属压力加工]