Welding, Butt
Two rods or wires joined end-to-end, particularly to allow for the continuous drawing of coils of wire. Typically, the tail end of a rod or wire coil in process is welded to the lead end of a new coil so production can continue without interruption. Butt-welding is performed with either electric resistance welding machines or cold pressure welding machines. A butt weld can be made in most ferrous and nonferrous wire materials.