Abstract:Aimed at setting typical nonmetallic materialspolytetrafluoroethylene (PTFE) laser engraving process parameters, a series of experiments were designed. The experimental result shows that the power has a great influence on quality of engraved PTFE, power parameters should be selected in 20% or more to obtain a clearer lines, when step length is 4 mm and frequency is 20 000 Hz; frequency has little influence on quality of engraved PTFE, the width of line is about 026 mm, when the step length is 1 mm and the power is 50%; power has a significant influence on quality of engraved PTFE, when the power is 25% and frequency is 20 000 Hz, only the step length is 1 mm can clear lines be engraved.