Submerged arc welding involves an electric arc between a consumable electrode and workpiece that is covered by granulated flux. The flux melts during welding to form a slag that covers and protects the weld area from contamination while allowing for deep penetration and high welding speeds of up to 3.8 meters per minute on 3mm thick steel plates or welding of plates up to 75mm thick in a single pass.

1. SUBMERGED ARC WELDING
BY
ARAVINDKUMAR B

2. SUBMERGED ARC WELDING
 Arc: between consumable electrode and work piece
 Welding zone: covered by the large amount of
granulated flux: delivered ahead of the electrode
through welding flux feed tube
 Flux: silica +metal oxides fused together + crushed
to proper size.
 Arc is completely submerged under the flux Part of
flux melts, form slag and covers the weld zone
 No splatter of molten metal
 Prevent weld zone from contamination

5. ADVANTAGES
 Can be automated /much faster than regular arc
welding
 Speed upto 3.8 m/min is possible 3mm thick steel
 Deep penetration with high quality weld is possible
 Capable of welding welding 75mm thick plate in a
single pass