Experimental study and empirical modelling of laser surface finishing of silicon carbide
by Ketema Bobe Bonsa; Woldetinsay Gutu Jiru; Mamilla Ravi Sankar; Uday Shanker Dixit
International Journal of Additive and Subtractive Materials Manufacturing (IJASMM), Vol. 1, No. 3/4, 2017

Abstract: Laser surface modification is an innovative method of polishing hard to machine ceramics for industrial applications. Laser has wide applications in industries due to a wide range of available and easily controllable power. It modifies any surface for high surface finishing applications. Silicon carbide is composed of carbon and silicon atoms forming a strong bond. It can be used in different applications like turbine components, ball valve parts, heat exchangers and semi-conductors. In this work, silicon carbide substrate material was irradiated using CO2 laser at different parameters (laser power 50-500 W and scan speed of 300-800 mm/min). After laser surface irradiation, surface roughness and its morphology were investigated. Laser irradiation improved the surface finish. The morphology of improved surface is free from any cracks. The Rockwell hardness test results show that the hardness of laser polished surface is about twice the original hardness.

Online publication date: Sun, 25-Feb-2018

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Additive and Subtractive Materials Manufacturing (IJASMM):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com