Weld-solder filler

Abstract

Conventional weld fillers contain copper, aluminum and manganese. These weld fillers are as a rule not suited for the welding of thin or rust-free sheet metals. The inventive weld filler contains 0.5 to 6.0 percent by weight Al, 0.5 to 8.0 percent by weight Mn, the usual impurities are less than or equal to 1.0 percent by weight and as the remainder Cu. This weld filler is better suited for the welding of thin or rust-free sheet metals than the up to now known weld fillers.

1 . In a process of conducting MIG soldering or welding, the improvement comprising utilizing a MIG weld-solder composition containing, in percent by weight: 
 0.5 to 7.0% Al;    0.5 to 2.0% Mn;    0.01 to 4% Fe;    0.01 to 6% Ni;    no more than 1.0% impurities; and    the remainder being Cu.    
   
   
       2 . The process of  claim 1 , wherein the following impurities, if present, are contained in the MIG weld-solder composition in the indicated ranges: 
 0.01 to 0.3% Si;    0.01 to 1.0% Zn;    0.01 to 0.5% Sn;    0.01 to 0.1% Cr; and    0.01 to 0.1% Co.    
   
   
       3 . The process of  claim 1 , wherein the MIG weld-solder composition contains 0.5 to 1 wt. % Mn.