The effects of cutting parameters on cutting forces and heat generation when drilling animal bone and biomechanical test materials

Medical Engineering & Physics
Akos Cseke, Robert Heinemann

Abstract

The research presented in this paper investigated the effects of spindle speed and feed rate on the resultant cutting forces (thrust force and torque) and temperatures while drilling SawBones® biomechanical test materials and cadaveric cortical bone (bovine and porcine femur) specimens. It also investigated cortical bone anisotropy on the cutting forces, when drilling in axial and radial directions. The cutting forces are only affected by the feed rate, whereas the cutting temperature in contrast is affected by both spindle speed and feed rate. The temperature distribution indicates friction as the primary heat source, which is caused by the rubbing of the tool margins and the already cut chips over the borehole wall. Cutting forces were considerably higher when drilling animal cortical bone, in comparison to cortical test material. Drilling direction, and therewith anisotropy, appears to have a negligible effect on the cutting forces. The results suggest that this can be attributed to the osteons being cut at an angle rather than in purely axial or radial direction, as a result of a twist drill's point angle.

Citations

Dec 24, 2018·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Mohd Faizal Ali Akhbar, Ahmad Razlan Yusoff
Dec 5, 2019·Clinical Implant Dentistry and Related Research·Dedong YuQinglong An
Dec 5, 2019·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Y MuramotoM Ohta
Sep 19, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Quan-Zhou LiChao-Feng Zeng
Jan 11, 2019·Annals of Biomedical Engineering·Jianbo Sui, Naohiko Sugita
Feb 12, 2020·Medical Engineering & Physics·Jianbo SuiNaohiko Sugita
Oct 8, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Quanwei WangYanan Yao
Feb 26, 2021··Cory XianChandana Samarasinghe

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