Patent ID: 7655879
Filing Date: 2010-02-02
Classification: B23K,B32B,C22C,Y10T

Abstract:
1. A method for producing by welding a permanent integral connection between two oxide-dispersed metallic materials, the method comprising: overlapping the two oxide-dispersed metallic materials one over the other to form an overlapping region including a joining region at the overlapping region; heating the two oxide-dispersed metallic materials at the joining region below the melting temperatures of the two oxide-dispersed metallic materials and welding the two oxide-dispersed metallic materials at the joining region to form, at least partially, a diffusion bond; heating the diffusion bond to a temperature below the melting temperature of the two oxide-dispersed metallic materials and mechanically recompacting the diffusion bond; and positioning a welding filler between the two oxide-dispersed metallic materials in the joining region and thereafter welding with the welding filler, wherein the welding filler comprises at least one noble metal foil.