Patent ID: 6316125
Filing Date: 2001-11-13
Classification: B23K,Y10S,Y10T

Abstract:
A process for producing a molten weld metal aluminum/copper alloy for use in joining at least two aluminum pieces comprising:(A) providing a mixture of reactants comprising a reducing agent, a metallic compound which is exothermically reduced by such reducing agent and filler metals that at least in part do not chemically react with such metallic compound or such reducing agent upon the exothermic reaction of such reducing agent and such metallic compound; and(B) exothermically reacting such reducing agent and such metallic compound so as to generate sufficient heat to melt such filler metals and form such molten weld metal alloy for joining such metallic pieces, at least 90 percent by weight of such molten weld metal alloy being formed by such filler metals.