Flash Welding

Flash welding is a resistance welding process that produces coalescence simultaneously over the entire area of abutting surfaces by the heat obtained from resistance to electric current between the two surfaces, and by the application of pressure after heating is substantially completed. Flashing and upsetting are accompanied by the expulsion of metal from the joint. This … Read more

Plasma Arc Welding (PAW)

Plasma arc welding (PAW) is a process in which coalescence, or the joining of metals, is produced by heating with a constricted arc between an electrode and the workpiece (transfer arc) or the electrode and the constricting nozzle (non-transfer arc). Shielding is obtained from the hot ionized gas issuing from the orifice, which may be supplemented … Read more

Laser Beam Welding (LBW)

Laser beam welding (LBW) is a welding process that produces coalescence of materials with the heat obtained from the application of a concentrated coherent light beam impinging upon the surfaces to be joined. The focused laser beam has the highest energy concentration of any known source of energy. The laser beam is a source of electromagnetic … Read more

Stud Welding Aluminum

Stud welding Aluminum may be accomplished with conventional arc stud welding equipment, using either the capacitor discharge or drawn arc capacitor-discharge techniques. The conventional arc stud welding process may be used to weld aluminum studs 3/16 to 3/4 in. (4.7 to 19.0 mm) diameter. The aluminum stud welding gun is modified slightly by the addition of … Read more

Carbon Arc Welding (CAW)

Carbon arc welding is a process in which the joining of metals is produced by heating with an arc between a carbon electrode and the work. No shielding is used. Pressure and/or filler metal may or may not be used. Carbon Arc Welding Equipment Electrodes. Carbon arc welding electrodes range in size from 1/8 to 7/8 … Read more