Authors: Mohammed Y. Tharwan; Ioan D. Marinescu; Sharaf Alsofyani; Ibrahim Basudan; Omar Bafakeeh; Bader Alqahtani; Abdulaziz Alshareef
Addresses: University of Toledo, 2801 W. Bancroft, Toledo, OH 43606-3390, USA; Mechanical Department, Jazan University, Saudi Arabia ' University of Toledo, 2801 W. Bancroft, Toledo, OH 43606-3390, USA ' Industrial Department, Northern Border University, Saudi Arabia ' Mechanical Maintenance Technology Department, College of Applied Industrial Technology, Jazan University, Saudi Arabia ' Industrial Engineering Department, College of Engineering, Jazan University, Saudi Arabia ' Mechanical Engineering Department, Northern Border University, Saudi Arabia ' MIME Department, University of Toledo, USA
Abstract: The application of hard and brittle materials, commonly exhibited by materials that are produced by burning of minerals at high pressure, has attracted attention with the goal of heightened performance. Traditional grinding generates large cracks and damages surfaces. However, we anticipated that when using a high-precision controlled micro-grinding machine, the improved process of material removal will reduce the surface roughness enhance the surface of brittle materials via increased plastic deformation (ductility). In this experiment, a unique sloped bracket was created to obtain a set of comparison results in one grinding process. Analyses of surface morphology, including scanning electron microscope images of sub-surface side cross-sections are shown in this paper. The results show the importance of keeping the depth of cut as small as possible in order to prevent sub-surface damage.
Keywords: advanced ceramics; brittle materials; grinding process; grinding force; plastic deformation; fracture damage; scanning electron microscopy; SEM; sub-surface fracture; critical depth of cut; cross-section; silicon carbide; SiC.
International Journal of Abrasive Technology, 2019 Vol.9 No.2, pp.138 - 153
Received: 19 Dec 2018
Accepted: 22 Apr 2019
Published online: 31 Jul 2019 *