工艺参数对电火花电弧高效复合加工性能的影响研究

Investigation for the Influence of Technological Parameters on the Electric Spark and Arc Machining Performance

电火花电弧复合加工解决了电火花加工效率低的问题,与电火花加工相比,其加工效率提高了数倍,针对某些材料,其加工效率甚至超过了传统机械加工,但也存在自动化程度低、电极损耗严重等缺陷。利用电火花电弧复合加工技术进行了大量实验,并以此为基础,分析了不同加工参数下的工件性能,得到在不同峰值电流、脉宽、电极主轴转速等参数下的工件加工效率、表面粗糙度及相对电极损耗率的变化规律,以期得出针对不同加工目的的最优工作参数。

The machining method compositing efficiency several times comparing with EDM,and electric spark and electric arc heighten the even exceed traditional machining for special materials. But there are some shortages such as low degree of automation and severe electrode loss. A large number of experiments were carried out and the performance of workpiece under different machining condition were analyzed. The transformation law of material removal rate （MRR）, surface roughness （SR） and tool wear ratio （TWR） under different peak current,pulse width and electrode spindle speed in order to get the optimized working parameters for different processing purpose.