High Velocity Oxygen Fuel (HVOF) tungsten carbide, WC-Co, WC-Co-Cr coatings have been in development for two decades for chrome replacement in aerospace applications and implemented on many components. These coatings have been limited for High Strength Steel (HSS) Landing Gear component… More

Landing gear designs utilize forgings for structural applications, to maximize properties and minimize weight. Although this approach allows for minimal component weight and size, a forging typically has the longest logistic lead time, and is usually the most expensive manufacturing method. Many… More

Landing gear components utilize steels with tensile strengths above 280 KSI. Components manufactured from these alloys require sacrificial protective coatings to perform successfully in service. Cadmium has been the baseline coating for such components for decades. The problems with cadmium, a… More

Chrome plating has been utilized for Landing Gear components for over half a century and High Velocity Oxygen Fuel (HVOF) tungsten carbide WC-Co coatings are currently being utilized for chrome replacement for aerospace applications and implemented on many non-aerospace applications. Landing Gear… More

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… More

Aircraft structure and propeller systems utilize both high and low strength steel, cad plated threaded components and fasteners throughout its structure. Threaded joints and fasteners manufactured from these alloys require sacrificial protective coatings due to the corrosive environment. Cadmium… More

When the inner diameter (ID) of aluminum landing gear outer cylinders is worn or damaged there is very little that can be done to repair the damage consequently the outer cylinder has to be condemned and taken out of service. The aircraft industry condemns many aluminum strut outer cylinders at a… More

Landing gear designs utilize forgings for structural applications, to maximize properties and minimize weight. Although this approach allows for minimal component weight and size, forgings commonly have extended procurement lead time, and are usually an expensive manufacturing method. Phase I of… More

Landing gear components manufactured from high strength steel alloys require sacrificial protective coatings to perform safely in service. Cadmium has been the standard coating for such components for decades, but is a known carcinogen and has been targeted for elimination by the USAF. An… More

When the inner diameter (ID) of a landing gear aluminum outer cylinder is damaged or worn there is very little that can be done to repair ID of the cylinder. Consequently, the outer cylinder has to be condemned and taken out of service. The main cause for condemnations of aluminum outer cylinders is… More

Chrome plating has been utilized as a protective wear coating for High Strength Steel (HSS) and Low Strength Steel (LSS) aircraft components for over half a century. High Velocity Oxygen Fuel (HVOF) tungsten carbide chrome (WC-Co or WC-Co-Cr) coatings are currently being utilized as a chrome… More

The Air Force is currently replacing chrome plating with High Velocity Oxygenated Fuel (HVOF) applied tungsten carbide-cobalt (WC-Co and WC-Co-Cr) coatings. These coatings require diamond wheels for finish grinding as well as aluminum oxide grinding wheels for base metal prep and Chrome plate… More

Aircraft structure, engine, propeller and landing gear systems utilize high and low strength steel, cad-plated threaded components and fasteners throughout its structure. Threaded components and fasteners manufactured from these alloys require sacrificial protective coatings due to the corrosive… More

ES3 has completed a SBIR Phase I effort of a feasibility study for the research and development of Nano-composite High Velocity Oxygen Fueled (HVOF) coatings for replacement of hard chrome plating on high-strength steel landing gear components. The Phase I work focused on finding an HVOF coating… More

There is currently no repair process to restore aluminum landing gear cylinders inner dimensions. The magnetron sputtering System (MSS) process has the potential of restoring outer cylinders IDs dimensions. This technology is similar to ion vapor deposition (IVD) aluminum, and meets the same… More

Temperature control has been a major concern during High Velocity Oxygen Fuel (HVOF) processing since it was originally utilized in the aerospace industry. Typically, temperature must not exceed 300oF to prevent heat damage/ tempering of the substrates on steel alloys, and even lower temperature… More

The defense community is extremely interested in developing numerical methodologies for predicting the dynamic response of concrete materials under extreme loading conditions. This capability would make it possible to use computer software for simulating events of interest, such as the response of… More

When the internal diameter (ID) of an aluminum alloy landing gear outer cylinder bore is damaged or worn there is currently very little that can be done to facilitate a repair. The main cause for early condemnation of aluminum alloy outer cylinders is excessive wear on the bore. The aerospace… More

ABSTRACT: The Air Force is currently replacing chrome plating with High Velocity Oxygenated Fuel (HVOF) applied tungsten carbide-cobalt (WC-Co and WC-Co-Cr) coatings. These coatings require diamond wheels for finish grinding the HVOF coatings as well as aluminum oxide grinding wheels for base metal… More

ABSTRACT: Landing gear components manufactured from high strength steel alloys require sacrificial protective coatings to perform safely in service. Cadmium has been the standard coating for such components for decades, but is a known carcinogen and has been targeted for elimination by the USAF. … More

ABSTRACT: There is a current need to remove the use of EHC on landing gear component bores (non-line of sight). EHC has been utilized on landing gear components for numerous years. There are many benefits to EHC such as providing an excellent wear surface, a good corrosion barrier and it allows… More

Landing gear systems are one of the more problematic subsystems on Naval aircraft. Landing gear failure can be caused by hard landings due to actual severe high sink rate with high enough GW to exceed the design strength, but are extremely rare. More common are fatigue and environmentally caused… More

ABSTRACT: Chrome plating has been utilized for Aircraft, Landing Gear, Engine and Propeller components for over half a century, and High Velocity Oxygen Fuel (HVOF) tungsten carbide (WC-Co, or WC-Co-Cr) coatings are currently being utilized for chrome replacement on many aerospace components and… More

ABSTRACT: Aircraft structure, engine, propeller and landing gear systems utilize high and low strength steel, cad-plated threaded components and fasteners throughout its structure. Threaded components and fasteners manufactured from these alloys require sacrificial protective coatings due to the… More

ABSTRACT: Resubmittal of Proposal F2-4872 as requested by Frank Zahiri (WR-ALC) for contract FA8501-12-C-0024 BENEFIT: See original Proposal