Patent ID: 7423232

Claim:
A method for welding/brazing a tube to a member comprising the steps of: a) obtaining a tube having an axially-extending first portion and having a tube form which extends transversely from the first portion; b) obtaining a member; c) obtaining a filler material having a different chemical composition from that of the tube and the member; d) after steps a) through c), disposing the tube, the member and the filler material such that the filler material contacts the tube form and the member; and e) after step d), creating a resistance current path through the tube, the filler material and the member which melts at least some of the filler material creating a weld/braze zone which includes at least some of the tube, at least some of the member, and at least some of the filler material wherein none of the tube and none of the member are autogenously welded together at the tube form.