Shape memory alloy coating using additive manufacturing
AssigneeHamilton Sundstrand Corporation
InventorsSteven Poteet, Diana Giulietti
Life of this patent
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Abstract
A gear pump can include at least one gear having a plurality of gear teeth. At least the plurality of gear teeth can be additively manufactured and can include a substrate and a pitting resistant outer coating additively manufactured on the substrate and configured to prevent pitting due to cavitation. The substrate can include a substrate material and the pitting resistant outer coating includes a pitting resistant material different than the substrate material. The pitting resistant outer coating defines an outer surface layer of the gear teeth.
Claims20
A gear pump, comprising:
- at least one gear having a plurality of gear teeth, at least the plurality of gear teeth being additively manufactured and comprising:
- a substrate;
- and
- a pitting resistant outer coating additively manufactured on the substrate and configured to prevent pitting due to cavitation,
- wherein the substrate includes a substrate material and the pitting resistant outer coating includes a pitting resistant material different than the substrate material, wherein the pitting resistant outer coating defines an outer surface layer of the gear teeth.
A method, comprising:
- additively manufacturing a pitting resistant outer coating on a substrate that is made of a substrate material to form a gear for a gear pump.
A gear for a gear pump, comprising:
- a plurality of gear teeth, at least the plurality of gear teeth being additively manufactured and comprising:
- a substrate;
- and
- a pitting resistant outer coating additively manufactured on the substrate and configured to prevent pitting due to cavitation,
- wherein the substrate includes a substrate material and the pitting resistant outer coating includes a pitting resistant material different than the substrate material, wherein the pitting resistant outer coating defines an outer surface layer of the gear teeth.
Dependencies are inferred from the claim text.