Joining the ends of two wires, rods or groups of wires (1) by fusing, using the application of heat or pressure or both, by means of a flame torch, electric arc or electric current; or (2) by cold pressure.
A joining process that produces merging of materials by heating them to the welding temperature, with or without the application of pressure or by the application of pressure alone, and with or without the use of filler material.
The process of joining metals by fusing them together under direct, intense heat. A commonly used source of heat for welding is an oxyacetylene torch. A metal rod may be applied to the joint which melts into any gaps and strengthens the bond.