重复频率激光辐照涂层金属材料的温升
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摘要: 测量了重复频率YAG激光辐照涂层金属材料(30CrMnSiA钢和LF6M铝金壳体)的前后表面温度, 分析了不同频率激光辐照涂层壳体材料的温升特性。实验结果表明:在相同平均功率的条件下, 激光脉冲频率越高, 对材料的加热效率越明显, 重复频率激光对材料的加热优于连续激光。Abstract: IR thermal imaging system is used to measure the front and rear surface temperature distribution of the coated metal (30CrMnSiA steel and LF6M alloy) irradiated by repetitive frequency (RF) laser. The characteristics of temperature increasement with laser irradiation time are analyzed in this paper. The experiment results show that the rear surface temperature of metal is mainly dependent on laser average power when target thickness is more than 1.6mm. The higher the laser pulse frequency is, the higher the efficiency of laser heating metal has. RF laser heating material is better than CW laser does．
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Key words:
- repetitive frequency laser /
- coated metal /
- themal imaging /
- temperature rise.
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