摘要
研究了45CrNi钢外毂激光淬火后的组织和性能。结果表明,激光平面扫描速度为270 mm/min,激光功率为2 kW时,淬硬层深度为1.2 mm;内孔扫描速度为350 mm/min,激光功率1.2 kW时,淬硬层深度为0.8 mm,表面硬度达到60 HRC,符合要求。
The microstructure and properties of 45CrNi steel outer hub after laser hardening were investigated .The results show that the plane of the outer hub may be hardened to a depth of 1 .2 mm when the laser scanning speed is 270 mm/min and the laser power is 2 kW,and that the inner hole of the outer hub may be hardened to a depth of 0.8 mm when the laser scanning speed is 350 mm/min and the laser power is 1.2 kW.Furthermore, the surface hardness is as high as 60 HRC, conforming with hardness requirements .
出处
《热处理》
CAS
2014年第2期58-60,共3页
Heat Treatment
