Optimization of laser marking process parameters on 2D barcode in part surface

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.