激光淬火工艺参数对40Cr钢淬硬层深的影响

基金项目:

激光技术国家重点实验室基金资助项目

详细信息

Effect of laser hardening technical parameters on hardened depth of 40Cr steel

1.
Department of Material Engineering, Luoyang Institute. of Technology, Luoyang, 471039;
2.
704 Factory of the First Tractor Factory of China, Luoyang, 471039

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1000～1200W,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0.35mm的平均淬硬层深。
- 40Cr钢 /
- 激光淬火 /
- 淬硬层深
Abstract: Laser hardening of 40Cr has been carried out with a 5kW CW CO2 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.
- Cr laser /
- hardening /
- hardened depth

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