Laser-assisted pre-finishing of optical ceramic materials

Jay C. Rozzi; Odile H. Clavier; Michael D. Barton

doi:10.1117/12.718618

2 May 2007 Laser-assisted pre-finishing of optical ceramic materials

Jay C. Rozzi, Odile H. Clavier, Michael D. Barton

Proceedings Volume 6545, Window and Dome Technologies and Materials X; 65450P (2007) https://doi.org/10.1117/12.718618
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

At Creare, we are developing a laser-assisted, pre-finishing system that enables the single-point diamond turning of super-hard ceramics into hemispheres, ogives, and other shapes that are ready for final optical finishing. Currently, super-hard ceramic materials cannot be affordably processed due to the low material removal rates and the high amount of sub-surface damage associated with current processes. Our innovation uses a low-power, far-infrared laser to heat, but not ablate, a thin layer of material prior to its removal. By heating the ceramic material, plastic-like deformation at the cutting edge is fostered by high-temperature dislocation motion. In doing so, the cutting forces are reduced which enables attendant reductions in tool wear, surface and sub-surface damage, and processing time. Our paper will summarize the development of our innovation, describe the process, discuss the machine tool, and review the latest results.

Citation Download Citation

Jay C. Rozzi, Odile H. Clavier, and Michael D. Barton "Laser-assisted pre-finishing of optical ceramic materials", Proc. SPIE 6545, Window and Dome Technologies and Materials X, 65450P (2 May 2007); https://doi.org/10.1117/12.718618

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available