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Proceedings Paper

Ultrasonic precision optical grinding technology
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Paper Abstract

As optical geometries become more precise and complex and a wider range of materials are used, the processes used for manufacturing become more critical. As the preparatory stage for polishing, this is especially true for grinding. Slow processing speeds, accelerated tool wear, and poor surface quality are often detriments in manufacturing glass and hard ceramics. The quality of the ground surface greatly influences the polishing process and the resulting finished product.

Through extensive research and development, OptiPro Systems has introduced an ultrasonic assisted grinding technology, OptiSonic, which has numerous advantages over traditional grinding processes. OptiSonic utilizes a custom tool holder designed to produce oscillations in line with the rotating spindle. A newly developed software package called IntelliSonic is integral to this platform. IntelliSonic automatically characterizes the tool and continuously optimizes the output frequency for optimal cutting while in contact with the part. This helps maintain a highly consistent process under changing load conditions for a more accurate surface. Utilizing a wide variety of instruments, test have proven to show a reduction in tool wear and increase in surface quality while allowing processing speeds to be increased.

OptiSonic has proven to be an enabling technology to overcome the difficulties seen in grinding of glass and hard optical ceramics. OptiSonic has demonstrated numerous advantages over the standard CNC grinding process. Advantages are evident in reduced tool wear, better surface quality, and reduced cycle times due to increased feed rates. These benefits can be seen over numerous applications within the precision optics industry.

Paper Details

Date Published: 11 October 2015
PDF: 9 pages
Proc. SPIE 9633, Optifab 2015, 96330L (11 October 2015); doi: 10.1117/12.2195977
Show Author Affiliations
Michael J. Cahill, OptiPro Systems, Inc. (United States)
Michael J. Bechtold, OptiPro Systems, Inc. (United States)
Edward Fess, OptiPro Systems, Inc. (United States)
Frank L. Wolfs, OptiPro Systems, Inc. (United States)
Rob Bechtold, OptiPro Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 9633:
Optifab 2015
Julie L. Bentley; Sebastian Stoebenau, Editor(s)

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