Study The Effect Of EDM (die-sinking) Parameters On Surface Roughness For Machining Tool-Steel

Mohd Isnaini , Masran (2008) Study The Effect Of EDM (die-sinking) Parameters On Surface Roughness For Machining Tool-Steel. Project Report. UTeM, Melaka, Malaysia. (Submitted)

	PDF (Full Text) Study_The_Effect_Of_EDM_(die-sinking)_Parameters_On_Surface_Roughness_For_Machining_Tool-Steel.pdf - Submitted Version Restricted to Registered users only Download (1MB)
	PDF (24 Pages) Study_The_Effect_Of_EDM_(die-sinking)_Parameters_On_Surface_Roughness_For_Machining_Tool-Steel.pdf - Submitted Version Download (171kB)

Abstract

The Electrical Discharge Machining (EDM) removes workpiece by an electrical spark erosion process. The variations in the machining parameters, such as polarity, pulse-on time, open discharge voltage, discharge current and dielectric fluid greatly affect the measures of the machining performance, for example surface roughness, electrode wear ratio and material removal rate. Therefore, proper selection of the machining parameters can result in better machining performance. This study is devoted to a study of the influences of EDM parameters on surface roughness for machining tool steel (AISI D2 Cold-work) which is widely used for various dies and cutters for its high strength and wear resistance due to formation of chrome carbide in heat treatment. The selected EDM parameters were Current (16-64A), Voltage (90-200 V) and Pulse OFF Time (5-10 μs). From the experimental, evaluation and analyzing result obtained, the higher discharge energy apparently producing the worst surface texture and fastest machining time. In the other hand, when applying lower discharge energy, machining time will be much longer but the surface texture will be better.

Actions (login required)

View Item