摘要
用 5kWCWCO2 激光器对 40Cr钢进行了激光淬火试验 ,探讨激光工艺参数对淬硬层深的影响。结果表明 ,激光功率增大、扫描速度降低、激光束重叠尺寸增大 ,则淬硬层深增大 ,且扫描速度比激光功率的影响更大。40Cr钢在功率 10 0 0～ 12 0 0W ,扫描速度 15～ 30mm/s,激光束重叠尺寸 1.0～ 1.5mm的工艺条件下淬火 ,可获得不小于 0 .
Laser hardening of 40Cr has been carried out with a 5kW CW CO 2 laser,the effects of laser technical parameters on hardened depth are discussed.The results indicate that the hardened depth increases with increasing laser power or overlap of dimension of laser beam and decreasing speed and that scanning speed is more important to hardened depth than laser power.In a range of laser hardening technical parameters:laser beam diameter:3mm,laser power:1000～1200W,scanning speed:15～30mm/s,overlap of dimension of laser beam:1.0～1.5mm,a hardened depth of 40Cr no less than 0.35mm can be obtained.
出处
《激光技术》
CAS
CSCD
北大核心
2002年第4期262-263,289,共3页
Laser Technology
基金
激光技术国家重点实验室基金资助项目
