Advance Machining of Industrial Graphite Electrodes

Bagas, Wardono (2009) Advance Machining of Industrial Graphite Electrodes. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project focuses on machining of Graphite material using a conventional lathe machine. The aim of this project is to study the significance of various variables and identify parameters that affect the machining of Graphite. The machining parameters considered in this project are cutting speed, feed rate, and depth of cut. The importance of the machining parameters will be determined in terms of surface roughness. The material used is graphite with 200mm length and 50mm diameter. The cutting tool used in this project is diamond shape TiN coated carbide cutting tool. Upon completion of the ~chining process, the workpiece is evaluated in terms of the surface roughness using portable surface roughness tester. For each run of the experiment, three measurements were taken and the average is used to represent the surface roughness of the corresponding run. Design of Experiment (DOE) is utilized in this project to find the significant parameters. The analysis from DOE shows that the feed rate is the most significant factor in surface roughness, while cutting speed and depth of cut do not show significant impact toward the resulting surface roughness.

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