OPTIMASI PARAMETER PEMESINAN PROSES CNC FREIS TERHADAP HASIL KEKASARAN PERMUKAAN DAN KEAUSAN PAHAT MENGGUNAKAN METODE TAGUCHI

Abstract

Milling process is one of machining process mostly used to manufacture a component. In machining a component, high quality production should be met. High quality production is indicated by a better quality of surface roughness. Implementing combination of maximum machining parameters will cause higher surface roughness. For that reason, machining parameters of milling process such as spindle speed, feed rate, depth of cut, and cutting condition must be optimized to get an optimum condition of surface quality and tool wear. This research attempts to identify the significance of processing parameters and optimize the surface roughness and tool wear of milling operations. The Taguchi method is used to find the optimum process parameters. Analysis of Variance (ANOVA) is employed to investigate the characteristics of performance. Based on the optimization result, the optimum condition of surface roughness is 0.72 ± 0.18 µm with machining parameters as followed: 2500 rpm spindle speed; 0.12 mm/rev feed rate, 1 mm depth of cut, and cutting condition using palm oil. Meanwhile, the optimum condition for tool wear is 3.3 ± 0.2 µm with machining parameters as followed: 2500 rpm spindle speed; 0.12 mm/rev feed rate; 1 mm depth of cut, and cutting condition using palm oil.