다구찌 실험 계획법을 활용한 평삭 가공에서의표면 거칠기에 대한 절삭조건 영향 분석

Abstract

The complex effects of the machining parameters make it is difficult to control and predict surface roughness. The theoretical surface roughness observed during mechanical machining with a round tool is determined by thetool radius and pitch. However, it was revealed that other parameters, such as the depth of cut and cuttingspeed, also affect surface roughness. This study adapted the Taguchi method, which can analyze the effects ofcutting parameters quantitatively with an efficient number of experiments, to optimize the parameters for bettersurface roughness. Experiments were designed based on an orthogonal array, and the quantitative effects on thesurface roughness were analyzed using the S/N ratio. The surface roughness was affected by all parameters,especially the tool radius. The optimum cutting parameter values obtained in this study showed better surfaceroughness than the other combinations of the parameters.