Study The Wear On High Speed Steel (HSS) Cutting Tool By Variable Parameters Turning Operation

Anuar , Muhammad (2006) Study The Wear On High Speed Steel (HSS) Cutting Tool By Variable Parameters Turning Operation. Project Report. Melaka, Malaysia, UTeM. (Submitted)

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Abstract

The main goal of this project is to 'Study the Tool Wear on High Speed Steel (HSS) cutting tool in Turning Operation' and also the influence of cutting conditions such as cutting speed, feed rate, depth of cut and cutting time on tool life and surface finish of the workpiece in the turning operation. Aiming to achieve this goal, several turning experiments were carried out with different cutting speeds, cutting time and feed rate. In the first phase of the experiments, cutting time is varied in such a way that cutting speed and feed rate are kept constant. Tool flank wear and surface roughness of the workpiece are measured as cutting time elapsed by using Optical Microscope and Profilometer. Machining productivity and associated costs are directly related to process planning decisions that determine machining parameters and cutting tool management strategies. The present study tested the hypothesis that tool wear can be more comprehensively related to the surface roughness of a machined part than provided by the traditional measure of tool wear, namely flank wear land width. The proposed method uses an Optical Microscope and Profilometer to measure flank wear of High Speed Steel (HSS) cutting tool employed in a turning operation. The conclusions of this project are that cutting speed, feed rate and depth of cut has an influence on tool life, regardless of whether feed velocity and an increase in surface roughness of the workpiece is not closely related to increase in wear of the primary cutting edge.

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