电场驱动3D打印热熔融聚乳酸掩膜电解加工微沟槽实验研究

iming at the problems of low efficiency of micro-groove structure and complex mask process in current micro-electrochemical machining, a mask electrochemical machining method of 3D printing hot melt polylactic acid material was proposed. The influence law of 3D printing parameters (printing pressure, printing speed, printing voltage) on the linewidth of the mask was studied, and the rapid preparation of the micro-groove array mask was realized. The printed polylactic acid micro-groove array mask was applied to micro-electrochemical machining, and the influence of process parameters (processing voltage, pulse frequency, duty cycle) on micro-groove size and machining localization was studied. The results show that the 3D printing hot melt polylactic acid mask has the ability of electrolytic machining mask. Using the optimized process parameters, the overall size of 50mm×30mm micro-groove array structure is fabricated, the average width of micro-groove is 236.14μm, the average depth is 61.62μm, and the processing effect is good.