现代制造工程Issue(7)：85-89,5.
牙轮钻头球面浮动套高频淬火过程温度场数值模拟
Numerical simulation of temperature field during high-frequency quenching process of spherical floating ring of rock bit
摘要
Abstract
Finite element model of temperature field in high-frequency quenching process was built ,and the change and distribu-tion of temperature field was analyzed .The simulated results of temperature field show that the difference of the radial temperature of section of spherical floating ring firstly increases and then decreases during cooling ,and the maximum difference of temperature is 162℃at 5s.The martensitic transformation firstly occurs at outside surface of spherical floating ring of rock bit when cooled to 50s,and almost finishes at 150s,and at this moment the temperature of spherical floating ring in the cores is 281℃.A comparison of simulated temperature value and measured shows good agreement and proves the validity of the model .关键词
球面浮动套/Cr12MoV模具钢/高频淬火/温度场Key words
spherical floating ring/Cr12MoV die steel/high-frequency quenching/temperature field分类
机械制造引用本文复制引用
何畏,李波,兰晓冬,曾莲,周晓敏..牙轮钻头球面浮动套高频淬火过程温度场数值模拟[J].现代制造工程,2014,(7):85-89,5.基金项目
四川省科技支撑计划项目 （）
