Method for reinforcing pistons
AssigneeWellworthy Limited
InventorsSimon Thomas Gazzard, Harold Taylor Hill
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Abstract
A deposit of a reinforcing material is formed on an aluminium alloy piston by spraying one or more regions of the piston with a copper-based material from an electric-arc spray gun which produces molten particles of a heat content sufficient to produce an effective metallurgical interaction with the piston alloy so that the copper-based material is bonded to the region or regions of the piston.
Claims11
A method of forming a deposit of a reinforcing material on an aluminium alloy piston which includes the step of spraying one or more regions of the piston with a copper-based material from an electric-arc spray gun whose operating arc voltage and gas pressure are adjusted to produce molten particles of a size, velocity and heat content sufficient to produce an effective metallurgical interaction with the aluminium alloy of the piston at a temperature below the boiling point of said alloy, whereby the copper-based material is bonded to said one or more regions of the piston.
Dependencies are inferred from the claim text.