Analisis Kekasaran dan Kepresisian Hasil Surface Grinding pada Mesin Okamoto Grind-X ACC84ST Dengan Material DIN CK-45

Abstract

Surface grinding is the finishing process that needs high smoothness and precision. This process's main demands are precise, roughness, and not burnt. This analysis purposed to know the most influential variable for the roughness and precision of a product. This analysis is also carried out to determine roughness and accuracy that can be achieved using the Okamoto Grind-X ACC84ST machine. The variables used for this analysis are the depth of cut, feeding, and cycle per feed. Every variable has three levels. DIN CK-45 material is selected to be specimen because it is usually used by the manufacturing and automotive industries to make the main product. The Taguchi method is used to reduce the time and number of experiments conducted to obtain more accurate data. The most influential variable for roughness is cycle per feed, while the most significant variable for precision is the depth of cut. The roughness that can be achieved using the Okamoto Grind-X ACC84ST machine is in the range of 0,075 μm (N3) to 0,175 μm (N4). Size deviations that occurred in this study ranged from -0,007 mm to 0,005 mm.