In allusion to the blindness in selecting process parameters of direct laser marking, this paper analyzed the influences of process parameters of laser marking and interactions on quality of 2D barcode through a large number of experiments. The process parameters included effective vector step, delay between the effective vector step, electric current and Q-switch frequency. The process parameters of laser marking on 2D barcode in the part surface were optimized and an optimization model was established. Also, a high quality of the 2D barcode which marked by laser can be guaranteed.

laser marking, part surface, quality of 2D barcode, optimization of process parameter

针对零件表面激光直接标刻二维条码工艺参数选择中存在的盲目性进行 了试验研究,主要分析了有效矢量步长、有效矢量步间延时、电流及Q-Switch频率这4个激光标刻工艺参数及其交互作用对激光标刻二维条码质量的影响。优化了零件表面激光标刻二维条码的工艺参数,并建立了优化模型,为标刻高质量二维条码提供了保障。

激光标刻, 零件表面, 二维条码质量, 工艺参数优化