Innovative Tantalum Machining for Weapon Applications

Award Information
Agency: Department of Defense
Branch: Army
Contract: W15QKN-09-C-0018
Agency Tracking Number: A082-044-1073
Amount: $119,805.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: A08-044
Solicitation Number: 2008.2
Small Business Information
818 Front Street, Lake Erie Business Park, Port Clinton, OH, 43452
DUNS: 061512844
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Russell Sweitzer III
 Project Leader
 (419) 635-2175
Business Contact
 Ann Yamrick
Title: Manager of Administration
Phone: (419) 635-2175
Research Institution
Gun barrel bores have been traditionally plated with chromium to reduce erosion and increase service life. However, the chrome electro deposition process generates hazardous waste and the DoD has been moving to eliminating its use. Liners made from Tantalum – tungsten (Ta-W) alloys have been shown to be an acceptable substitute. These alloys have a high melting temperature, are more erosion resistant then chromium, and will increase the service life of gun barrels. Conventional rifling cutters and manufacturing techniques used to date have not been able to consistently produce parts within acceptable drawing tolerances or without degradation to the integrity of the cladded surface. Additional investigation into the machining characteristics of the Ta-W alloy and development of manufacturing tooling and techniques will yield the correct parameters to successfully and repeatedly rifle cladded barrel bores.

* Information listed above is at the time of submission. *

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