Abstract
Abstract Drilling in human bone is an inevitable joining process during any fracture surgery. Excessive temperatures and durations during drilling process can result in the necrosis (death) of bone, a phenomenon termed osteonecrosis, or the impairment of osteogenic capability. This work aims to check the temperature and thrust force variation in drilling process with bones of varied densities. Bovine bone is used for experimental work as it is closest to human bone. Experiments have been performed under different conditions deploying the Taguchi design of experiments. The operation parameters such as speed, feed, and density of bone and material of drill bit have been considered during drilling operation and the output responses - temperature and the thrust force acting on the bone during drilling were measured. It was found that bone with lesser density dissipated the heat generated quickly and developed lesser thrust when compared to the high-density bone. Grey Relation Analysis (GRA) is used to optimize the thrust force and temperature in drilling of bone.
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