Effect Of Surfactant On EDM Of Low Conductivity Reaction-Bonded Silicon Carbide

Ehsan, Abu Bakar (2015) Effect Of Surfactant On EDM Of Low Conductivity Reaction-Bonded Silicon Carbide. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Effect Of Surfactant On EDM Of Low Conductivity Reaction-Bonded Silicon Carbide.pdf - Submitted Version Download (217kB)

Abstract

This project was focusing on improving machining performance of reaction-bonded silicon carbide ceramic material using electrical discharge machine with the aid of surfactant. The changes of material removal rate, tool wear rate, surface roughness and surface topography were investigated on two different surfactants, namely span 20 and span 80 were mixed with carbon nanofiber and EDM oil. Prior to the EDM experiments, the surfactant was mixed with carbon nanofiber and EDM oil, then, the mixture was homogenized using ultrasonic homogenizer for 90 minutes. In order to investigate the effect of surfactant, different ratio of surfactant to carbon nanofiber were used. The experimental results show that with the addition of span 20 and span 80, the tool wear rate and surface roughness were increased with the increasing of surfactant ratio. The surface topography produced also shows that as increasing surfactant ratio, the crater become bigger. The optimum ratio for obtaining the highest material removal rate was 1:1 for both surfactants. In comparison, carbon nanofiber added span 80 was more effective to improve the machining efficiency of reaction bonded silicon carbide compared to span 20, with the optimum ratio 1:1.

Actions (login required)

View Item