Electrical Discharge Machining of Al2O3 Using Copper Tape and TiO2 Powder-Mixed Water Medium

Aluminum-based ceramics are used in industry to produce cutting tools that resist extreme mechanical and thermal load conditions during the machining of Ni-based high-entropy alloys. There is wide field application also aerospace industry. Microtexturing reduces contact loads wear tools. However, most published works related electrical discharge alumina hydrocarbons, which creates risks for personnel equipment due formation chemically unstable dielectric carbides (methanide Al3C4 acetylenide Al2(C2)3). An alternative approach wire Al2O3 water-based medium using copper tape 40 µm thickness TiO2 powder suspension was proposed first time. The performance evaluated by calculating material removal rate various combinations pulse frequency concentration. obtained kerf 54.16 ± 0.05 depth demonstrated an increasing efficiency more than 1.5 times with closest analogs workpiece up 5 mm height. comparison (0.0083–0.0084 mm3/s) shows results may correlate properties assisting materials.