General Methods:

Submerged arc welding might be applied in three different modes : semi-automatic, automatic, and machine. Each of the method requires that the work be positioned so that the flux and the molten weld pool shall remain in place till they have solidified. Various types of fixtures and positioning equipment are available or may be built to satisfy this needs.

Semi-automatic Welding

Semi-automatic welding is done with a hand-held welding gun that delivers flux and the electrode both. A wire feeder drives the electrode. Flux might be supplied by a gravity hopper mounted on the gun or pressure fed through a hose. This method features manual guidance by using comparatively small diameter electrodes and moderate travel speeds. The travel might be manual or driven by a small gun-mounted driving motor.

Automatic Welding

It is done with equipment that carry out the welding operation without requiring a welding operator to constantly monitor and

Welding Processes

It adjust the controls. Expensive self-regulating equipment might be justified to achieve high-production rates.

Machine Welding

Machine welding employs equipment that carry out the complete welding operation. However, it ought to be monitored by a welding operator to location the work, start and stop welding, adjust the controls, and set the speed of every weld.