基于齿端分流工艺的汽车变速器齿轮挤压成形模拟分析  

Simulation Analysis of Extrusion Forming of Automobile Transmission Gear Based on Tooth-end Shunting Technology

作　　者：李梅[1] 王强 LI Mei;WANG Qiang(Shaanxi Radio and TV University,Xi'an 710068,China;School of Materials Science and Engineering,Hebei Polytechnic University,Tangshan 063210,China)

机构地区：[1]陕西广播电视大学,陕西西安710068 [2]华北理工大学材料科学与工程学院,河北唐山063210

出　　处：《热加工工艺》2020年第17期118-120,共3页Hot Working Technology

基　　金：陕西省教育厅专项科研计划项目(14JK1060);榆林市科技计划项目(20-3)。

摘　　要：针对汽车变速器齿轮挤压成形过程中模具载荷过大的弊端,本文采用齿端分流工艺对模具结构进行了改进,在上模与坯料接触的端面设置分流槽,引导多余的金属进入,降低了模具的最大载荷。结果表明,相对于未设置分流槽的模具,使用分流槽模具所成形的齿轮锻件齿尖填充完满,而且模具最大载荷显著降低。Aiming at the disadvantages of excessive die load in the process of automobile transmission gear extrusion forming,the structure of the die was improved by using the tooth-end shunting technology.The shunting groove was set in the contact end face between the upper die and the billet to guide the excess metal into the die,thus reducing the maximum load of the die.The results show that the tooth tip of the gear forging formed by the die with the shunting groove is fully filled and the maximum load of the die is significantly reduced compared with that by the die without the shunting groove.

关 键 词：齿轮 挤压 载荷 分流槽 DEFORM软件 

分 类 号：TG376[金属学及工艺—金属压力加工]