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ByMr. Rohitkumar G. Rathod
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Underwater Welding :
DRYWELDING WET WELDING
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Options:
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Electrode design
These copper coatedcarbon/graphite electrodesare especially made
for the
Arcwater process. Arcwaterelectrodes that are
Packing
Creating Habitat, cover over
the weld spot.
Two Possibilities
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Wet Welding
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Wet Welding
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Cheapest and Fastest method.
Tensile strength is high.
Ease of access the weld spot.
No habitat, no construction, no waste of time.
Advantages of Wet Welding
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Rapid quenching decreases impact strength, Ductility.
Hydrogen enbrittlement.
Poor visibility in water.
Higher energy density of Hydrogen. Higher efficiency
Disadvantages of Wet Welding
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Dry Welding/ Hyperbaric Welding
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Dry Welding/ Hyperbaric Welding
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Welder/Diver Safety.
Good quality welds.
Surface monitoring.
Nondestructive testing.
Advantages of Dry Welding
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Higher cost of process, training, etc.
Large qty of costly and complex equipments.
More deep, More energy requirement.
Cant weld if weld spot is at unreachable place.
Disadvantages of Dry Welding
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