Development of Novel Cooling and Temperature Monitoring for High Velocity Oxygen Fuel (HVOF) Coating Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8501-08-M-0027
Agency Tracking Number: F073-121-0230
Amount: $99,907.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solitcitation Year: 2007
Solitcitation Topic Code: AF073-121
Solitcitation Number: 2007.3
Small Business Information
550 West C Street, Suite 1630, San Diego, CA, 92101
Duns: 127283500
Hubzone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Doug Wiser
 Manager, Landing Gear Systems
 (801) 926-1150
Business Contact
 Craig Edwards
Title: Director, Aircraft Systems
Phone: (801) 926-1150
Research Institution
Temperature control is a major concern during High Velocity Oxygen Fuel (HVOF) processing in the aerospace industry. Typically, temperature must not exceed 300oF to prevent heat damage/ tempering of the substrates for steel alloys, and even lower temperature requirements for aluminum and titanium alloys. Shop air cooling has traditionally been the most widely utilized temperature control cooling medium when applying HVOF coatings to aircraft components such as airframe, engine/propeller, and landing gear components, because it is readily available in the shop environment. However, in many cases shop air has proven to be inadequate for controlling substrate temperatures. Consequently, longer off-part dwell times to allow for component cooling has become common practice – resulting in significant powder and gas consumption – both of which cost money. Additionally, the traditional temperature monitoring system has been a continuous reading single point infrared gun aimed at a single location on the component being sprayed. Although this is a widely accepted method in the HVOF community, it’s only good for measuring localized areas, whereas part temperature will vary along the length of the components particularly for parts with complex geometries. This compounds the temperature issues and makes optimization of temperature control very difficult.

* information listed above is at the time of submission.

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