Abstract
In orthopaedic surgeries involving bone excision, processing damage and excision accuracy strongly influence the postoperative results. Thermal damage from cutting heat causes necrosis of bone cells and should ideally be avoided. In this study, we propose a cutting tool with two types of cutting edges that avoids tissue damage by decreasing cutting force and temperature. By controlling the generation of brittle cracks and finishing the surface with small depth of cut, it is expected that the processing energy can decrease and the precise surface will be also obtained with our method.