锻压工艺对Cu-Zn基合金同步器齿环性能的影响研究  

Effects of Forging Process on Properties of Cu-Zn-based Alloy Synchronizer Gear Rings

作　　者：刘志英[1] 王晓峰[1] 

机构地区：[1]郑州职业技术学院,河南郑州450121

出　　处：《热加工工艺》2017年第23期134-137,共4页Hot Working Technology

基　　金：河南省科技厅2016年度科技攻关项目(162102310239)

摘　　要：采用不同的模具预热温度、始锻温度和终锻温度对Cu-Zn基汽车同步器齿环进行了锻造,并进行了磨损性能和冲击性能的测试与分析。结果表明:在试验条件下,随模具预热温度从200℃升高至300℃、始锻温度从720℃升高至800℃或终锻温度从590℃升高至710℃,齿环的磨损性能和冲击性能均先提高后下降。Cu-Zn基汽车同步器齿环的最佳工艺参数为:模具预热温度275℃、始锻温度780℃、终锻温度690℃。Cu-Zn-based automobile synchronizer gear rings were forged by using different die preheating temperature, initial forging temperature and finial forging temperature. And the wear resistance and impact property were tested and analyzed. The results show that under test conditions, with die preheating temperature increasing from 200 ℃ to 300 ℃, initial forging temperature increasing from 720 ℃ to 800 ℃ or finial forging temperature increasing from 590 ℃ to 710 ℃, both wear resistance and impact property of the gear rings firstly increase and then decrease. The optimum technological parameters of Cu-Zn-based automotive synchronizer gear rings are die preheating temperature of 275 ℃, initial forging temperature of 780 ℃and finial forging temperature of 690 ℃.

关 键 词：模具预热温度 始锻温度 终锻温度 汽车同步器齿环 磨损性能 冲击性能 

分 类 号：TG316[金属学及工艺—金属压力加工]