The Influence Of Machining Parameters On Tool Wear And Surface Finish

Nor Hariyani, Abd Wahab (2011) The Influence Of Machining Parameters On Tool Wear And Surface Finish. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Single point turning is a material removal process from the surface of a workpiece by producing chips. In turning, the tool wear and surface roughness are commonly influenced by several parameters such as cutting speed, depth of cut, feed rate and characteristics of the machine tool. The main purpose of this research is to study the influence of machining parameters on tool wear and surface finish. In this reserch tungsten carbide was used as a cutting tool to machine the workpiece (mild steel). Design Of Experiment (DOE) method was applied as the research approach to ascertain the relationship between various process parameters ( depth of cut, cutting speed, and feed rate) and the tool wear and surface roughness. Flank wear was measured using Scanning Electron Microscope(SEM) and surface roughnesswas measured using portable profilometer. The result of this research indicates that the tool wear was influenced by feed rate and cutting speed while the surface roughness was influenced by feed rate. The finding also indicate that there were strong interaction between the depth of cut and feed rate and the interaction between depth of cut and cutting speed that influenced tool wear. However, there is no interaction effect that influenced the surface roughness.

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