Surface integrity and wear mechanism H13 tool steel machinability assesment

Mohd Anuar, Mohamad Hazzim (2022) Surface integrity and wear mechanism H13 tool steel machinability assesment. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

In the field of engineering, the factors of surface roughness and tool wear are highly correlated with each other. Each material has a different property. This study, the analysis will be tested on the material of H13 tool steel. H13 is a hard steel material because it contains 5 percent chromium in its chemical composition. The purpose of this study was to find out the surface roughness of H13 and to analyze the tool wear on the cutting tool. Problem statement of this study shows that there are no data about the machining process towards H13 because the material itself is a rare item. Generally, this study will be carried out by cutting the H13 material on a CNC turning machine under wet conditions where there is a usage of fluid coolant. There are four cutting speed values which will be begun from 100,140,170 and 200 m/min. There are two feed rate values which are 0.05 and 0.10 mm/rev. In this study, depth of cut will be constant at the value of 0.5mm. Upon completion of the CNC machining process, analysis of surface roughness will be performed by using a surface roughness tester, while tool wear will be tested on a microscope and scanning electron microscope. The result shows that H13 material can be performed in CNC turning machine under wet condition. The parameters provided are very suitable when the cutting process is done. Finally, this study will provide an understanding for the students especially in analyzing the factors of surface roughness and wear mechanism.

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