PENGARUH PARAMETER PERMESINAN PADA KAYU TERHADAP KEKASARAN PERMUKAAN

Abstract

Quality of product in machining process depends on geometry accuracy and surface roughness of the product. In this research, the effect of cutting speed, feed rate, depth of cut and cutting condition for machining jackfruit and mahogany wood will be studied. The Taguchi method is used to analyze the most significant influence of machining parameters and the optimum condition of machining process will be reported. From the analysis of variance (ANOVA) it is known that the feed direction has the biggest influence on surface roughness for jackfruit and mahogany. The optimum condition of machining parameters for jackfruit achieved by medium cutting speed, low feed rate, high depth of cut, and feed direction is 0°. The prediction of surface roughness and confirmation experiment is 3,55±0,29 μm and 3,56±0,21 μm. Meanwhile, the optimum condition of machining parameters for mahogany achieved by high cutting speed, low feed rate, medium depth of cut, and feed direction is 0°. The prediction of surface roughness and confirmation experiment is 2,99±0,11 μm and 3,07±0,15 μm.