分流-挤压复合成形模具结构对斜齿轮成形的影响  

Influence of Die Structure of Shunt-Extrusion Compound Forming on Helical Gear Forming

作　　者：许思佳 冯玮[1,2] XU Sijia;FENG Wei(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Advanced Technology of Automotive Parts,Wuhan 430070,China)

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070 [2]现代汽车零部件技术湖北省重点实验室,湖北武汉430070

出　　处：《热加工工艺》2019年第17期75-78,共4页Hot Working Technology

基　　金：国家自然科学基金面上项目(51475344)

摘　　要：利用软件Deform建立了圆柱斜齿轮分流-挤压复合成形有限元模型,模拟了不同凸台尺寸的凸模下齿轮热成形过程,研究了不同凸台尺寸对斜齿轮成形的影响规律。结果表明,凸台高度越高,最大成形载荷越小;凸台高度和凸台直径都会影响齿形的最终填充效果,凸台高度较小时,轮齿沿齿向的温度分布均匀性和等效应变分布均匀性较好。The finite element model of shunt-extrusion composite forming of helical gear was established by using software Deform.The hot forming process of gears under different boss sizes of upper die was simulated.The influence of different boss sizes on helical gear forming was studied.The results show that the higher the boss height is, the smaller the maximum forming load is.The height and the diameter of the boss will affect the final filling effect of the tooth.When the boss height is small, the temperature uniformity of the teeth along the tooth direction and the uniformity of the equal strain distribution are good.

关 键 词：圆柱斜齿轮 模具结构 数值模拟 变形规律 

分 类 号：TG375.41[金属学及工艺—金属压力加工]