Study on the Mechanism of Bone Temperature Diffusion in Vibration-assisted Micro Milling

Thermal damage to osteocytes is a common problem in orthopedic surgery, and vibration-assisted milling (VAM) can remove bone materials efficiently and with low damage, which is of great significance to improve the success rate of surgery. However, the mechanism of heat transfer during vibration milling is not clear, so it is necessary to study the mechanism of heat generation and heat transfer during vibration milling. Based on the heat generation mechanism of vibration milling bone material, a temperature model of bone material was established, and the correctness of the model was verified by finite element simulation experiments. The experimental results show that vibration cutting can effectively suppress heat generation and reduce thermal damage area compared with conventional cutting.