齿轮激光淬火硬化层数值模拟  

Numerical Simulation of Laser Hardened Case of Involute Gear

作　　者：丰瑞华[1] 吴钢[1] 

机构地区：[1]上海海事大学机械系,上海200135

出　　处：《热处理》2008年第6期55-59,共5页Heat Treatment

基　　金：上海市高等学校重点基金资助项目(07ZZ101);上海市重点学科建设资助项目(T0601)

摘　　要：建立了采用轴向扫描工艺对渐开线齿轮进行激光淬火时的三维温度场数值模型,采用ANSYS软件模拟激光束扫描过程中齿面及轮齿横截面的温度分布。结果表明,激光淬硬层深度模拟结果与试验结果相吻合,可以通过该温度场模型对各种模数和齿数的齿轮激光淬火过程进行模拟,快速得到与实际相近的硬化层深度分布曲线。建立该数值模型的一些思路和方法也适用于各种曲面类零件激光淬火的数值模拟。A 3-D numerical temperature fields model for involute gear was developed when it was laser hardened by axial scanning process. The temperature distribution at the surface and cross-section of teeth during the laser-beam scanning was simulated by using ANSYS software. It was found that the simulated laser hardened depth was similar to experimental result, and that the laser hardening process for involute gear with different modules and different tooth numbers might be simulated by using the temperature field model to quickly obtain a hardened depth profile close to the practical situation in gear. The thinking and method for the establishment of numerical model are adap- table to numerical simulation of laser hardening for cambered parts as well.

关 键 词：渐开线齿轮 激光淬火 数值模拟 温度场 硬化层 

分 类 号：TG162.73[金属学及工艺—热处理] TG156.99[金属学及工艺—金属学]