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研究了调Ｑ激光与金属相互作用的物理过程，用等离子体云飞散的近似模型和瞬时温度场关系式对凹坑的形成机制作了定性分析，用蒸发阵面上的功率平衡方程，讨论了不同要求的刻标加工最佳参数的选取。理论分析与刻标效果基本相符。
The physical process of Q-switched laser interaction with metal was studied. The formation mechanism of pits was analyzed qualitatively by the relation between the approximate model of plasma cloud scattering and the instantaneous temperature field. The power balance equation of evaporation front was discussed Selection of the best parameters for different requirements of engraving process. The theoretical analysis is consistent with the effect of carved mark.