TIG电弧重熔处理工艺在动车组转向架制造中的应用  

Application of TIG arc remelting process in the manufacture of bogie of EMU

作　　者：张林儒 李业雄 李志强[1] 宋佳瞳 ZHANG Linru, LI Yexiong, LI Zhiqiang, SONG Jiatong(CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, Chin)

机构地区：[1]长春轨道客车股份有限公司,吉林长春130062

出　　处：《电焊机》2018年第3期341-343,共3页Electric Welding Machine

摘　　要：在高速动车组转向架构架制造中采用TIG电弧重熔处理工艺,可有效减少焊缝与母材过渡处因几何形状突变造成的应力集中,同时还可消除咬边、刻槽等缺陷,提高转向架构架的抗疲劳性能,进而提高构架的安全性能及使用寿命。该项技术在高速动车组转向架构架焊接生产上的应用与推广具有重要的现实意义。TIG arc remehing treatment technology was used in tire frame manufacture of high speed EMU bogies in this paper. It can effectively reduce the stress concentration caused by the abrupt change of geometry and can eliminate the defects such as undercut and groove. This technology can improve the fatigue performance of bogies and improve the safety peKormance and service life.

关 键 词：TIG电弧重熔 复合处理 转向架 高速动车组 

分 类 号：U270.6[机械工程—车辆工程]