Performance of self-fabricated CNC machine when machining industrial product

Mat Daud, Mohd Talmizi (2014) Performance of self-fabricated CNC machine when machining industrial product. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This thesis contain the report of machining performance of Self-fabricated CNC machine when apply to machining process. The aim of this paperwork is to study the machinability of new machine and present surface roughness of Aluminum LM6 Alloy material in dry milling and to determine the tool wear characteristics of tungsten carbide cutting tool during machining. Machining performance is determined according to tool wear and surface finish that obtained. During testing, cutting speeds will be used in range of 7000 rpm until 10000 rpm with feed rate and depth of cut is 90 mm/min and 0.5 mm, respectively. The cutting time is considered in this machining test to identify the tool life. From that, the appropriate cutting parameters for each cutting tool will be identify depending on surface roughness and tool wear. The performance of surface integrity for aluminum alloy is measure by surface roughness tester and surface profile and tool wear by Optical Microscope. From this photograph and data, the expected outcome of surface roughness and cutting tool will be affected by machining parameters. The resulted data is analyzed using one way design based on graph and observation. Based on the surface roughness of machined part and tool wear value of cutting tools, self-fabricated CNC machine are capable to perform machining of aluminum LM6 alloy. The best cutting parameters obtained from the experiment are cutting speed 8000 rpm, feed rate 90 mm/min and radial depth of cut 0.5 mm using tungsten carbide cutting tool.

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