A Study on Optimizing Cutting Speed and Cutting Width to Improve Tool Performance in Milling SUS316 Material

Ting, Marcus Yew Wei (2020) A Study on Optimizing Cutting Speed and Cutting Width to Improve Tool Performance in Milling SUS316 Material. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

A lasting tool wear play an important role in machining due to it will directly affect the surface of the material. The quality of product will easily get affected if it has a bad surface roughness. Besides that, a tool wear will increase when surface roughness increases which also increase the cost of manufacturing. Therefore, it is very important in manufacturing industry. Hence, tool wear is very important factors that will affect the quality of the product. A lasting tool wear can help to reduce the production cost and also save time. Tool wear which is normally cause by spindle speed and width of cut. Different combination of cutting parameters will cause different tool wear. Therefore, optimize the cutting parameters for example spindle speed and width of cut is the way to reduce the tool wear for milling machining in milling SUS316 material. This research was carried out under dry condition by using a 6mm diameter 4 flutes uncoated carbide end mill cutting tool. The workpiece that was used to machine in this experiment was stainless steel SUS316. The range of the parameters were set from 4000rpm to 5000rpm for the spindle speed and 1mm to 2mm width of cut. The range was inserted into the Design of Expert (DOE) that generated 4 rounds of experiments. The experiment were conducted following the 4 sets combination of cutting parameters. After the cutting operation, tool wear was measured by using microscope. The result was key analyses by using two level factorial method in Design of Expert. Thus, an optimum cutting condition was obtained which spindle speed is 5000rpm and width of cut is 1mm. The percentage error as compared to theoretical and experimental was obtained which is 3.34%.