摘要
采用高功率半导体激光器对H13钢进行激光表面淬火。研究了淬火温度、激光的扫描速度和搭接率等工艺参数对H13钢表面硬度、硬化层的深度和硬度梯度的影响。结果表明,当淬火温度为1500℃,扫描速度为800 mm/min以及搭接率为30%时,H13钢表面硬化效果最佳,即表面硬度最高,硬化层最深,硬度梯度较平缓。
H13 steel was laser hardened by using a high power diode laser. The effect of process parameters on the surface hardness, depth and hardness gradient of hardened case of H13 steel was investigated, such as austenitizing temperature, scanning speed, overlap of laser, etc. The results show that H13 steel hardened from 1500 ℃ at .scanning speed of 800 mnL/min and overlap rate of 30% will offer the optimum hardening result, i.e., lhe highesl surface hardne,the deepest hardened case and more gradual hardness gradient.
出处
《热处理》
CAS
2013年第3期28-32,共5页
Heat Treatment
基金
上海市科委应用技术开发专项资金项目(2010-127)
关键词
H13钢
高功率半导体激光
表面淬火
耐磨性
H13 .steel
high power diode laser
.surface quenching
wear resislance
