Analysis of Electromachining Characteristics of Inconel625 Alloy and TC11 Alloy Based on Short Electric Arc Machining Technology

The short electric arc machining system was adopted to process Inconel625 and TC11 alloy under different electromachining parameters, and the influence of electromachining parameters and high temperature on the machinability, microstructure and hardness of the material were studied. The results show that the processing technology has obvious removal rates for the two kinds of difficult-to-process materials. High voltage machining has higher removal rate, but the machined surface is rough. Low voltage machining will obtain better surface quality. Affected by the heat energy of electromachining, the metallographic structure of the material is transformed, and the grain refinement is obvious. The heat-affected layer of Inconel625 alloy is 318.6 μm, and its hardness increases by 16.9%. The heat-affected layer of TC11 alloy is 175.2 μm, its hardness increased by 32.8%. The machinability variation of the two materials can meet the requirements of subsequent fine finishing.