Surface Finish Study Of Mild Steel Machined By Carbide Cutting Tools

Mohd Faizal , Mohamad (2010) Surface Finish Study Of Mild Steel Machined By Carbide Cutting Tools. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The main goal of this project is to analyze the effects of the parameters on surface roughness in turning process. Generally there are three parameters that will affect the surface roughness which are cutting speed, feed rate and depth of cut. Roughness is a measure of the texture on a surface. It is quantified by the vertical deviations of a real surface from its ideal form. If these deviations are large, the surface is rough and if it is small the surface is smooth. Surface roughness constitutes one of the most critical constraints for the selection of machine tools and cutting parameters in metal cutting operations. In this study, the Taguchi’s method was used to study the effects of cutting parameters which are cutting speed, feed rate and depth of cut. The material used in this research was mild steel AISI 1020. Machining trials was conducted at different cutting conditions using carbide cutting tools. Surface roughness values were measured using surface roughness tester. It was shown that feed rate was given the highest influence of the surface roughness. The study is importance to machinist in the selection of appropriate combinations of machining parameters for high-speed turning of mild steel AISI 1020 workpiece using carbide cutting tool. The experimental results reveal that the most significant machining parameter for surface roughness is feed rate followed by depth of cut and cutting speed.

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