METHODS OF WELDING AND WELDED ARTICLES

In some embodiments, a method of welding includes welding at least one fill bead to fill at least one gap on a substrate with arc scanning by an arc welder. The gap is defined by at least one weld bead on the substrate. The weld beads are non-overlapping. A welded article includes a substrate includ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LIN, Dechao
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	In some embodiments, a method of welding includes welding at least one fill bead to fill at least one gap on a substrate with arc scanning by an arc welder. The gap is defined by at least one weld bead on the substrate. The weld beads are non-overlapping. A welded article includes a substrate including a crack-prone superalloy and at least one weld bead and at least one fill bead welded on the substrate. The fill bead, the weld bead, and a heat-affected zone of the substrate are micro-crack-free and macro-crack-free. In some embodiments, a method of welding includes welding weld beads on a substrate and welding fill beads on the substrate with an arc welder while arc scanning. The fill beads fill the gaps between neighboring pairs of weld beads. The fill beads are welded in a non-sequential order.