Precision surface grinding of silicon carbide

Konneh, Mohamed (2016) Precision surface grinding of silicon carbide. International Journal of Engineering Materials and Manufacture (IJEMM), 1 (2). pp. 51-58. E-ISSN 0128-1852

PDF - Published Version Restricted to Repository staff only Download (530kB) | Request a copy

Abstract

Silicon carbide (SiC) is well known for its excellent material properties, high durability, high wear resistance, light weight and extreme hardness. Among the engineering applications of this material, it is an excellent candidate for optic mirrors used in an Airbone Laser (ABL) device. However, the low fracture toughness and extreme brittleness characteristics of SiC are predominant factors for its poor machinability. This paper presents surface grinding of SiC using diamond cup wheels to assess the performance of diamond grits with respect to the roughness produced on the machined surfaces and also the morphology of the ground work-piece. Resin bonded diamond cup wheels of grit sizes 46 µm, 76 µm and 107 µm; depth of cut of 10 µm, 20 µm and 30 µm; and feed rate of 2 mm/min, 12 mm/min and 22 mm/min were used during this machining investigation. It has been observed that the 76 grit performs better in terms of low surface roughness value and morphology.

Item Type:	Article (Journal)
Additional Information:	4486/52909
Uncontrolled Keywords:	Silicon carbide, surface grinding, cup wheel, diamond grits, surface roughness and morphology
Subjects:	T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohamed Konneh
Date Deposited:	02 Jan 2017 17:36
Last Modified:	02 Jan 2017 17:45
URI:	http://irep.iium.edu.my/id/eprint/52909

Actions (login required)

View Item