齿轮表面缺陷等离子焊接温度场有限元分析  

Finite Element Analysis of Temperature Field in Plasma Welding of Gear Surface Defects

作　　者：于双洋 钟明 余健 曹旭 YU Shuang-yang;ZHONG Ming;YU Jian;CAO Xu(Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000,China)

机构地区：[1]江西理工大学,江西赣州341000

出　　处：《机械研究与应用》2021年第6期11-14,共4页Mechanical Research & Application

基　　金：2020年江西省大学生创新创业训练计划项目:一种大模数齿轮表面性能优化工艺(编号:S202010407013)。

摘　　要：三峡升船机驱动齿条模数较大,齿条采用40CrMo材料,齿条长期使用后在其表面产生疲劳点蚀,采用等离子焊接技术对其进行修复。采用有限元法模拟等离子焊接技术修复齿条表面缺陷的过程,研究了工艺参数对工件温度场的影响,得出采用等离子焊接技术修复工件的最佳理论修复工艺参数。The module of the driving rack of the Three Gorges ship lift is large.The rack is made of 40CrMo material.After long-term use,the rack has fatigue pitting corrosion on its surface,which is repaired by Plasma welding technology.In this paper,the process of repairing rack surface defects by Plasma welding technology is simulated by the finite element method.The influence of process parameters on workpiece temperature field is studied,and the best theoretical repair process parameters of repairing workpiece by Plasma welding technology are obtained.

关 键 词：疲劳点蚀 等离子焊接 温度场 工艺参数 

分 类 号：TG162[金属学及工艺—热处理]