Thermal simulation of the continuous pulse discharge for electro-spark deposition diamond wire saw

Due to their excellent physical and mechanical properties, third-generation super-hard semiconductor materials (such as SiC, GaN) are used widely in the field of microelectronics. However, due its ultra-high hardness, machining is very difficult, which has become bottleneck development. Slicing first procedure that directly affects subsequent process. Fixed abrasive diamond wire saw (DWS) been cutting hard brittle materials. abrasives attached a core by resin or electroplated, slicing super crystals difficult inefficient. In order improve efficiency, it necessary holding strength wear resistance DWS. The electro-spark deposition (ESD) process can deposit electrode on substrate under condition low heat input achieve metallurgical bonding between metal And resistance, corrosion repair size workpiece. It surface modification engineering. effectively grains, sawing ability make consolidated DWS ESD thin matrix poor thermal easy burning even breaking manufacturing At present, selection pulse interval time generally determined duty factor. selected according factor meet dissipation requirements (ESDDWS). this paper, two kinds motion modes ESDDWS put forward, characteristics ESDDWS. boundary conditions continuous discharge established. simulations analyzed. According simulation results, basis value forward. effect performance analyzed experimentally. results show base ensure production