Submerged welding is an arc welding process, where welding joint is made by producing
an electrical arc or arcs set up between the bare metal electrode and weld metal.
This welding process held totally hide condition under a blanket or granular material
(flux). There are no pressure is required and continuously fed the bare electrode
act as a filler metals on the joints for melt.
Submerged arc welding
Submerged welding principle:
In submerged arc welding process a bare electrode is used and flux is used as a granular
material. An electric arc is produced between bare electrode and job. The molten
filler metal is covered with flux. This flux is shielded the molten metal contamination
from atmospheric gas. This process can be automatic or semi automatic control.
Submerged welding advantages:
High rate of filler metal deposition and deep penetration is occurred.
Submerged welding operation can be performed considerably higher speed.
Weld distortion is less on weld metal.
Molten filler metal deposited uniformly and possess good ductility and good corrosion
Due to high filler metal deposition the thick material can be welded easily and smoothly.