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Study on Effect of Surface Micro-Texture of Cemented Carbide on Tribological Properties of Bovine Cortical Bone

Authors :
Peng Shang
Bingfeng Liu
Chunhai Guo
Peijuan Cui
Zhanlin Hou
Fengbin Jin
Jianjun Zhang
Shijie Guo
Yuping Huang
Wenwu Zhang
Source :
Micromachines, Vol 15, Iss 8, p 994 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

In bone-milling surgical procedures, the intense friction between the tool and bone material often results in high cutting temperatures, leading to the thermal necrosis of bone cells. This paper aims to investigate the effect of micro-texture on the tribological properties of YG8 cemented carbide in contact with bone. The main objective is to guide the design of tool surface microstructures to reduce frictional heat generation. To minimize experimental consumables and save time, numerical simulations are first conducted to determine the optimal machining depth for the texture. Subsequently, micro-textures with different shapes and pitches are prepared on the surface of YG8 cemented carbide. These textured samples are paired with bovine cortical bone pins featuring various bone unit arrangements, and friction and wear tests are conducted under physiological saline lubrication. The experimental results indicate that the appropriate shape and pitch of the micro-texture can minimize the coefficient of friction. The parallel arrangement of bone units exhibits a lower coefficient of friction compared to the vertical arrangement. This study holds significant implications for the design and fabrication of future micro-texture milling cutters.

Details

Language :
English
ISSN :
15080994 and 2072666X
Volume :
15
Issue :
8
Database :
Directory of Open Access Journals
Journal :
Micromachines
Publication Type :
Academic Journal
Accession number :
edsdoj.77bd974c8ad4267bf3f18f5942d2fca
Document Type :
article
Full Text :
https://doi.org/10.3390/mi15080994