Laser Assisted Machining of Metal Matrix Composites

Award Information
Agency:
National Aeronautics and Space Administration
Branch:
N/A
Amount:
$99,638.00
Award Year:
2008
Program:
STTR
Phase:
Phase I
Contract:
NNX08CD46P
Agency Tracking Number:
070178
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Nanohmics, Inc.
6201 East Oltorf Street, Suite 400, Austin, TX, 78741
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
100651798
Principal Investigator
 Mike Durrett
 Principal Investigator
 (512) 389-9990
 mdurrett@nanohmics.com
Business Contact
 Ken Suter
Title: Contract Analyst
Phone: (765) 494-4728
Research Institution
 Purdue University
 585 Purdue Mall
West Lafayette, IN, 47907 2088
 (765) 494-9775
 Nonprofit college or university
Abstract
Metal matrix composites (MMC's) are of great interest in aerospace applications where their high specific strength provides a weight saving alternative to standard materials. To date however their use has been limited by the difficulty in fabricating complex shapes. Most current methods for manufacturing MMC's are limited to relatively simple shapes that often still require further machining. It is the machining of MMC's that is the biggest drawback to their application. Grinding or single point diamond turning are generally the methods of choice but in each case tool wear is excessive and surface damage is apparent. A very attractive alternative for rapid machining of MMC's is Laser Assisted Machining (LAM). LAM has been successfully applied to ceramics and some recent work has indicated that LAM can successfully machine MMC's with high material removal rates and no surface damage. In this proposal, Nanohmics Inc. and Dr. Y. C. Shin of Purdue University propose to apply the recently developed technique of laser assisted machining coupled with a specially designed dynamic tooling system to develop a means of machining MMC's into complex shapes.

* information listed above is at the time of submission.

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