Investigation of the surface integrity, flexural strength on the grinding of alumina for biomedical applications

Khodaii, Javad and Adibi, Hamed and Barazandeh, Farshad and Rezaei, Mehdi and Sarhan, Ahmed. A. D. (2021) Investigation of the surface integrity, flexural strength on the grinding of alumina for biomedical applications. Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology, 67. pp. 110-122. ISSN 0141-6359, DOI

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This paper presents the analytical and experimental investigations on different factors such as surface integrity, flexural strength and grinding energy and cost of Alumina through the use of various diamond grinding wheels. For obtaining the analytical model for single-grit grinding, the effect of strain rate and grinding temperature are also included in the formulation. Moreover, the experimental tests are conducted with four different diamond grinding wheels to grind Alumina blocks. The applied force during grinding is measured. Then, the other important parameters, including surface roughness, wheel wear, and grinding cost are analyzed. According to the obtained results, a good agreement between the experimental and analytical results were achieved in all cases. Furthermore, it was found that controlling the grinding condition would be resulted in 11% reduction in the subsurface damages (SSD) according to the images of Scanning electron microscope (SEM) results at the distance of 150 mu m under the ground surface. A converging improvement trend of the surface integrity and flexural strength was also observed. Also, approximately 29% improvement was attained for the flexural strength in optimum condition. In addition, the optimal condition for grinding was determined, in which 66% decrease in surface roughness and 75% decrease in grinding cost were accomplished.

Item Type: Article
Funders: Centre of Advanced Manufacturing and Material Processing of university of Malaya
Uncontrolled Keywords: Grinding; Alumina; Crack; SEM; Flexural strength
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 06 Jul 2022 08:32
Last Modified: 06 Jul 2022 08:32

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