轴对称圆筒件在锥形凹模中非强制变形规律的探讨  

The non-forcing deformation trend of the conical necking workpiece beside the exit region

作　　者：马跃新[1] 邓芬燕[2] 邹安全[2] 

机构地区：[1]广东中山火炬职业技术学院机械工程系,广东中山528436 [2]湖南科技大学机械设备健康维护省重点实验室,湖南湘潭411201

出　　处：《企业技术开发》2007年第7期17-20,35,共5页Technological Development of Enterprise

基　　金：湖南省自然科学基金资助项目(04JJ6026)

摘　　要：文章论述了轴对称圆筒件在锥形凹模中缩口时口部自由弯曲区的变形趋向,对3种变形模式进行了比较,并通过实例计算,从理论上证明自由弯曲的变形模式最接近于口部的真实变形,从而证实了按自由弯曲变形模式计算口部应力与变形的合理性。The non-forcing deformation trend of the axisymmetric conical necking workpiece beside the exit region is discussed. Three deformation modes are analyzed and compared each other. Through the agency of numeral example, it is proved that the deformation mode according to the freeform bending is most approximate to the real deformation of the conical necking workpiece beside the exit region.

关 键 词：缩口 非强制变形 变形模式 自由弯曲 

分 类 号：TG385.2[金属学及工艺—金属压力加工]