Journal
REVIEWS ON ADVANCED MATERIALS SCIENCE
Volume 62, Issue 1, Pages -Publisher
DE GRUYTER POLAND
DOI: 10.1515/rams-2022-0290
Keywords
ultrasonic longitudinal torsion; biotic bone; drilling temperature; drilling forces; effect of drilling
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This study proposes an ultrasonic longitudinal torsion-assisted drilling (ULTAD) technique for biotic bone drilling. A comparative experiment between conventional drilling and ULTAD drilling in porcine femur showed that the ultrasonic component in bone drilling can reduce temperature and forces, improve material removal and chip breaking, shorten bone debris length, and facilitate discharge. Moreover, ULTAD technique reduces microcracks in the borehole wall, protecting the drilled biotic bone from internal damage.
State-of-the-art treatment of such orthopedic diseases as fracture and femoral head necrosis implies the installation of prosthesis or fixed equipment into patients' injured parts using bone drilling. This study proposes an ultrasonic longitudinal torsion-assisted drilling (ULTAD) technique for biotic bone drilling. A comparative experiment was carried out between conventional drilling and ULTAD drilling in biotic bone, namely porcine femur. These tests proved that under the same drilling parameters, the ultrasonic component in bone drilling could reduce the drilling temperature and forces, improve the material removal by chip breaking, shorten the length of bone debris, and facilitate their discharge. Moreover, the proposed ULTAD technique reduced the number, length, and width of microcracks in the borehole wall, thus protecting the drilled biotic bone from internal damage.
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