JW4G作业车转向架构架焊接变形控制  

Welding Deformation Control for Bogie Frame of W4G Working Vehicle

作　　者：毕红雪[1] 丁磊 李建龙[1] 孙立国 BI Hong-xue;DING Lei;LI Jian-long;SUN Li-guo(Zhengzhou Railway Vocational and Technical College,Zhengzhou 451460,China;Luoyang Locomotive Limited Company,Luoyang470002,China)

机构地区：[1]郑州铁路职业技术学院,河南郑州451460 [2]洛阳机车有限公司,河南洛阳470002

出　　处：《机电工程技术》2018年第9期158-162,共5页Mechanical & Electrical Engineering Technology

基　　金：郑州铁路职业技术学院科研项目(编号:2016JKY025)

摘　　要：针对JW4G转向架构架组焊后变形量大的问题,分析转向架构架结构和现场焊接变形量统计数据。影响焊接变形量的主要因素有3个:焊前的组装放量尺寸、焊接顺序、焊接参数。改进JW4G型转向架构架组成的焊接技术,即采用调整组装放量、焊接顺序、优化焊接工艺参数来实现减少焊接变形和焊后调修工作量。较好地控制构架的焊接变形,降低劳动强度,提高生产效率。Aiming at the problem of large deformation of JW4G bogie frame after welding, the bogie frame structure and field welding deformation statistics were analyzed. There are three main factors affecting the welding deformation： pre-welding assembly size, welding sequence, welding parameters. The welding technology of JW4G bogie frame was improved by adjusting the assembly volume, welding sequence and optimizing welding process parameters to reduce welding deformation and post weld repair workload. The welding deformation of the frame can be controlled well, the labor intensity and production efficiency can be reduced.

关 键 词：JW4G转向架 焊接变形 焊接顺序 焊接工艺 

分 类 号：U260.331[机械工程—车辆工程]