侧铣式高速电弧放电加工工艺研究

Study on Machining Characters of Flank Milling Blasting Erosion Arc Machining

侧铣式高速电弧放电加工利用电极侧面放电蚀除工件材料,能加工复杂的型腔、沟槽及直纹面等。为了探索这种新型电弧放电加工的工艺特性,探讨了峰值电流、脉宽和冲液压力等条件对工件材料去除率和相对电极损耗率的影响。实验结果表明:提高冲液压力和峰值电流均能增大工件材料去除率;相对电极损耗率随冲液压力的提高而增大,随峰值电流的提高而减小。在一定范围内,工件材料去除率随脉宽的提高而增大,相对电极损耗率随脉宽的提高而减小。

Flank milling blasting erosion arc machining mainly uses the flank of electrode to remove the material. It can be applied in machining of concaves with complex surfaces, and slots as well. Machining experiments were conducted to explore the machining performance of flank milling blasting erosion arc machining under different inlet pressures ,peak currents and pulse durations. The experimental results show that higher inlet pressure and peak current could improve the material removal rate correspondingly. Tool wear ratio would be amplified with the increasing of the inlet pressure, and reduced with the increasing of peak current. Increasing the pulse duration can reduce tool wear ratio, but the material removal rate increases within a certain range.