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US 2022/0023948 A1Published application
Repair process using laser metal powder deposition
AssigneeWestinghouse Electric Belgium
InventorsCindy MUYLLE, Yves DERRIENNIC, Gisele WALMAG, Norberto JIMENEZ, Cedric GEORGES
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Abstract
A laser metal powder deposition method is described which can be utilized for the repair of cast stainless steel components used in nuclear environments. Internal defects found in a component (200) during routine maintenance and refurbishment are identified and then excavated to form a cavity (210). The cavity is filled by multiple layers (3101, 3102, . . . , 310N) of laser metal powder deposition and then checked for its integrity.
Claims7
A method of repairing a cast stainless steel component, the method comprising the steps of:
- a) identifying the presence of at least one defect in the cast stainless steel component;
- b) excavating a region in the cast stainless steel component which includes the at least one identified defect to form a cavity;
- c) depositing laser metal powder within the cavity in a predetermined pattern;
- d) melting and fusing the deposited powder within the cavity using a laser;
- and
- e) finishing the surface of the filled cavity to match the surface of the cast stainless steel component.
3 more elements
Dependencies are inferred from the claim text.