Method of welding a gamma-prime precipitate strengthened material
OwnerTimothy Fuestinginventor
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Abstract
A method for welding a gamma-prime precipitation strengthened alloy component. In one aspect the welding process includes preheating the alloy component to minimize the difference in contraction between the weld deposit and the substrate portion of the component during solidification and cooling. The component having a weld that is substantially free of solidification cracking.
Claims22
A method for welding an article formed of a gamma-prime precipitation strengthened alloy, comprising:
- heating a portion of the article to a temperature within a range from about 600° F. to and including the aging temperature of the alloy, the portion including a weld area;
- welding at least a portion of the weld area after said heating to produce a weld deposit;
- and
- cooling the article to form a weld that is free of solidification cracking.
A method for welding a gamma-prime precipitation strengthened alloy component, comprising:
- heating only a portion of the component to a temperature below the stress relief temperature for the gamma-prime precipitation strengthened alloy, the portion including a weld area and a substrate portion located below the weld area, said heating expanding the substrate portion;
- welding at least a portion of the weld area after said heating to produce a weld deposit;
- and
- cooling the weld area, wherein the difference in contraction between the weld deposit and the substrate portion does not cause solidification cracking.
A method for welding an article formed of a gamma-prime precipitation strengthened alloy, comprising:
- preparing a weld area in the article;
- dynamically heating only a portion of the article to a temperature within a range from about 600° F. to and including the aging temperature of the alloy, the portion including the weld area;
- welding upon the weld area after said heating to produce a weld deposit;
- solidifying the weld deposit to form a weld that is uncompromised by solidification cracking;
- and
- heat treating the article after said solidifying, the weld after said heat treating is uncompromised by strain age cracking.
Dependencies are inferred from the claim text.