Rotary ultrasonic Bone Drilling
A novel bone drilling technique i.e., rotary ultrasonic bone drilling named as RUBD has been successfully attempted to minimize the forces, torque temperature and microcracks during bone drilling. In order to perform the experimental investigations to find out change in temperature, force, torque, temperature and microcracks with RUBD using diamond coated hollow tool on bone, rotary ultrasonic tool assembly was designed and fabricated in house. The drilling experiments were planned and carried out on porcine bones using design of experiments (Response Surface Methodology). Analysis of variance (ANOVA) was carried out to find the effect of process factors such as rotational speed, feed rate, drill diameter and ultrasonic vibrational amplitude on the force and torque. Statistical models were developed for the force and torque with 95% confidential interval and confirmation experiments have been carried out to validate the models
Link: Good Accuracy
Problem Scale: Around the world
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