内燃机车滑动叉模锻工艺研究  

Research on die forging process of sliding fork for diesel locomotive

作　　者：于学海 王大勇[2] YU Xue-hai;WANG Da-yong(Casting and Forging Branch,CRRC Dalian Co.,Ltd.,Dalian,Shandong 116022,China;Provincial Key Laboratory of Key Materials for Rail Transit,Dalian Jiaotong University,Da-lian,Shandong 116028,China)

机构地区：[1]大连机车车辆有限公司铸锻分公司,辽宁大连116022 [2]大连交通大学轨道交通关键材料省重点实验室,辽宁大连116028

出　　处：《模具工业》2022年第5期53-57,共5页Die & Mould Industry

摘　　要：分析成型滑动叉原工艺的不足,设计新的锻造工艺,将2个锻件叉口处对合,合体锻件变为形状简单、无叉口的长轴类形状,采用整体合锻方式模锻成形,使终锻由原1模1件变为1模2件,解决了原工艺生产中出现的锻造质量问题,可降低锻造成本,为同类锻件的工艺及工装设计提供一定的参考。The disadvantages of previous forming process of sliding fork were analysed, and the new forging process was designed. The two forging forks were pieced together, the structure of fit forgings was simple and it was long axial shape with no fork. The final forging was changed from 1part to 2 parts by using the split forging method, the forging quality problem in the previous production was solved, which could reduce the cost of forging and provid reference for the process and tooling design of similar forging.

关 键 词：滑动叉 螺旋压力机 模锻 预变形 整体合锻 

分 类 号：TG315.2[金属学及工艺—金属压力加工] O242.21[理学—计算数学]