工艺参数对闭开联合轧制件微观组织的影响研究  

Effects of Process Parameters on Microstructure of Workpiece in Closed-open Joint Rolling

作　　者：周子荣[1,2] 束学道[1,2] 位杰[1,2] 殷安民[1,2] 马吉栋[1,2] 

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211 [2]浙江省零件轧制成形技术研究重点实验室,浙江宁波315211

出　　处：《热加工工艺》2016年第15期111-114,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(51475247);浙江省科技计划项目(2016C31018)

摘　　要：通过Deform-3D有限元软件建立了汽车油泵轴楔横轧轴向闭开联合轧制的热、力和微观组织相互耦合的有限元模型。分析了工艺参数对闭开联合轧件的平均晶粒尺寸的影响。结果表明,零件的平均晶粒尺寸随着整体断面收缩率的变化而变化;随着闭式断面收缩率占比的增加,先增大后减小;随着闭式轧制长度比的增加而减小。Finite element model of coupled heat, force and microstructure of auto oil pump shaft cross wedge rolling was established by the finite element software Deform-3D. Effects of process parameters on the average grain size of the closed-open joint rolling workpiece were analyzed. The results show that the average grain size of the part is changed with the change of the whole section shrinkage ratio; with the increase of the ratio of the closed section shrinkage, the average grain size of the part increases firstly and then decreases; with the increase of the ratio of the length of the closed rolling, the average grain size of the part decreases

关 键 词：闭开联合轧制 工艺参数 微观组织 晶粒尺寸 

分 类 号：TG335.19[金属学及工艺—金属压力加工]