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A&A Coatings - Model HVOF -Aluminum Bronze Coatings Material
A&A Coatings material is a fine grade aluminum bronze powder. When sprayed with the HVOF process, dense, high bond strength coatings are produced. These deposits can be readily machined, milled, drilled/tapped or otherwise finished. This unique set of physical properties makes Aluminum Bronze ideally suited to restoration of worn or mis- machined non-ferrous components. This coating is recommended for soft bearing applications and to resist wear by fretting, hard surfaces and cavitation.
HVOF Sprayed Aluminum Bronze coatings are harder and exhibit a higher tensile bond strength than standard aluminum bronze deposits. The as-sprayed surface finish is also finer than comparable standards. These data reflect the higher coating density, improved bonding and superior coating integrity which results from the HVOF process.
Thickness Limitation
A&A Coatings HVOF Sprayed Aluminum Bronze can be sprayed to high thicknesses in excess of 0.250”.
Surface Preparation
A&A Coatings HVOF Sprayed Aluminum Bronze is self-bonding to substrates which have been cleaned to remove surface oxides. This cleaning is accomplished with a light grit blast.
Finishing
Excellent finishes have been obtained on these coatings using “D” shaped tungsten carbide tool bits with a nose radius of 0.8mm (1/32″), a work speed of 250 surface feet per minute (76smpm) and traverse of 0.06mm (.0025″)/revolution. The best results are
obtained with finishing cuts as heavy as 0.25mm (.010″).