Abstract
In the machining process of medical products made of polysulfone material, it is strongly required to reduce the surface roughness and burr. It is well known that tool mark is the primary cause of surface roughness on the slot shape generated by the machining process. The type of tool mark on the machined surface is usually determined by the trajectory and shape of the cutting edge of the end mill. Therefore, in this study, we proposed a new shape of cutting edge with a flat profile. The proposed shape is generated by grinding process, by modifying both concave angle and the amount of ground area. In this study, we investigated the relationships among cutting conditions, surface roughness, and tool mark with the ground end mill.
