Hardfacing process and parts produced thereby
AssigneeCaterpillar Inc.
InventorsDaniel Sordelet, Robert L. Meyer, Fernando Martinez Diez
Life of this patent
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Abstract
A manufacturing process includes depositing a clad layer having a thickness greater than about 0.5 mm (0.02 in) on a surface of the component by hardfacing, and creating a heat affected zone directly below the clad layer due to the depositing. The heat affected zone may be a region of the component where a lowest hardness is lower than a base hardness of the component below the heat affected zone. The method may also include heat treating the component after the deposition such that the lowest hardness in the heat affected zone is restored to within about 15% of the base hardness of the component.
Claims10
A manufacturing process for a component subject to wear, comprising:
- depositing a clad layer having a thickness greater than about 0.5 mm (0.02 in) on a steel body of the component using a hardfacing process, the steel body having a hardness between about 43 HRC and 60 HRC;
- and
- heat treating the component after the cladding, the heat treating including;
- austenizing the component;
- quenching the component in a liquid bath;
- and
- tempering the component after the removing;
- wherein depositing a clad layer includes creating a heat affected zone directly below the clad layer due to the depositing, the heat affected zone being a region of the body where a lowest hardness is lower than a base hardness of the steel below the heat affected zone, and the heat treating includes heat treating the component such that the lowest hardness of the heat affected zone is restored to within about 15% of the base hardness.
Dependencies are inferred from the claim text.