Journal
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
Volume 30, Issue 8, Pages 3799-3804Publisher
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-016-0742-0
Keywords
Wire EDM; Spraying pressure of dielectric fluid; Wire tension; Linear velocity of wire; Electric conductivity of dielectric fluid
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Wire electrical discharge machining is a non-traditional cutting process for machining of hard and high strength materials. This study analyzed the effects of the main input parameters of wire electrical discharge machining of ASP30 steel (high alloyed Powder metallurgical [PM] high speed steel) as the workpiece on the material removal rate and surface roughness. The input parameters included spraying pressure and electric conductivity coefficient of the dielectric fluid, linear velocity of the wire and wire tension. The machined surface quality was evaluated using SEM pictures. Results indicated that increasing the spraying pressure of dielectric fluid leads to a higher material removal rate and surface roughness and that increasing the wire tension, linear velocity of wire, and electric conductivity of the dielectric fluid decreases the material removal rate and surface roughness.
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