内燃机车牵引杆叉头锻造工艺研究  

Research on forging process for draw bar fork of diesel locomotive

作　　者：于学海 王大勇[2] 全景厚 韩坤男 周蓬磊 YU Xue-hai;WANG Da-yong;QUAN Jing-hou;HAN Kun-nan;ZHOU Peng-lei(Casting and Forging Branch,CRRC Dalian Co.,Ltd.,Dalian,Liaoning 116022,China;Pro-vincial Key Laboratory of Key Materials for Rail Transit,Dalian Jiaotong University,Dalian,Liaoning 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8期64-68,共5页Die & Mould Industry

摘　　要：以牵引杆叉头为研究对象,针对现有锻造成型需要两火次加热工序造成的问题,改进锻造成型工艺,将生产过程中由两火次加热成型缩减为一火次加热成型。改进后的工艺方案在保证成型零件质量的前提下,可节约4%材料成本,节省50%燃油及50%的人工成本,并提升了锻件表面质量,提高了生产效率。Taking the draw bar fork as the research object,aiming to solve the problem that the ex⁃isting forging process need twice heating processes,the forging process was improved to reduce the twice heating processes to one heating processes.The improved process could save 4%materi⁃al cost,50%fuel and 50%labor cost on the premise of ensuring the quality of forming parts.It im⁃proved the surface quality of forging parts and production efficiency.

关 键 词：牵引杆叉头 螺旋压力机 模锻 预变形 工艺改进 

分 类 号：TG316[金属学及工艺—金属压力加工]