Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 04, 2024 - October 05, 2024
In recent years, the number of patients with osteoarthritis of the knee has been increasing with the aging of the population, and knee joint replacement surgery is a treatment for this disease. A high carbon content Co-Cr-Mo alloy (HC-CCM alloy) with excellent wear resistance has been developed as a material used for this treatment. However, there have been no reports on the cutting characteristics of HC-CCM alloys by milling. In this study, the cutting performance of binderless cBN tools in the high-speed cutting region at cutting speeds of 5.0 m/s or higher. As a result, a surface roughness of 0.6μmRz was obtained even under high-speed cutting conditions, but tool damage on the side cutting edge was significant at a cutting speed of 20 m/s. Therefore, a cutting speed of 10 m/s was the most suitable condition for machining HC-CCM alloys.
