齿轮轴激光熔覆轴变形的数值分析  

Numerical analysis of deformation of gear shaft in laser cladding on teeth surfaces

作　　者：傅强[1] 金振俊[1] 汤军[1] 陈列[1] 

机构地区：[1]海军92330部队

出　　处：《机电工程》2012年第5期497-500,511,共5页Journal of Mechanical & Electrical Engineering

基　　金：国防科技重点实验室基金资助项目(51489040104JB1101)

摘　　要：为利用激光熔覆技术对齿轮轴受损齿面进行修复,对激光熔覆过程中齿轮轴的变形进行了分析,建立了齿轮轴激光熔覆过程应力场数值计算模型,对齿轮轴的径向变形量进行了数值分析;计算结果表明,在采取顺序熔覆的工艺条件下,齿轮轴的径向变形将无法避免,而采取对称熔覆工艺,可对轴的径向变形产生一定的补偿和抵消效果,在试验中对实施两种熔覆工艺后轴的径向变形分别进行了测量。研究结果表明,采取对称熔覆工艺后,其径向跳动量不及顺序熔覆工艺条件下的1/3,说明该工艺具有较好的控制齿轮轴变形的作用,可实际应用于齿轮轴的激光熔覆修复工作。In order to repair the spoiled teeth surfaces of gear shaft by laser cladding,radial distortion of gear shaft was analyzed.Numerical calculation model of stress field in the process of laser cladding on tooth surface of gear shaft was established.Radial displacement of shaft was calculated.The results show that radial distortion could not be avoided when the teeth be sequential clad.And the radial distortion of shaft would be compensated at a certain extent when symmetrical cladding craft is applied.Radial distortion values of gear shaft were measured after two kinds of cladding crafts in experiment.Experiment results show that the radial displacement value of shaft in process of symmetrical cladding is less than one-third of radial distortion value in process of sequential cladding.It is shown that symmetrical cladding craft is effective for controlling distortion of gear shaft in process of laser cladding on teeth surfaces,and this craft could be applied to actual repairing of gear shaft.

关 键 词：齿面修复 激光熔覆 齿轮轴 数值计算 轴变形 应力场 

分 类 号：TH133.2[机械工程—机械制造及自动化] TG156.99[金属学及工艺—热处理]