Dry welding and wet welding

By Mr. Rohitkumar G. Rathod

© www.EMechatronix.com

© www.EMechatronix.com

© www.EMechatronix.com

Underwater Welding :

DRY WELDING WET WELDING

© www.EMechatronix.com

Options:

© www.EMechatronix.com

© www.EMechatronix.com

© www.EMechatronix.com

Electrode design

These copper coated carbon/graphite electrodes are especially made for the Arcwater process. Arcwater

electrodes that are

Packing

Creating Habitat, cover over the weld spot.

Two Possibilities…

© www.EMechatronix.com

Wet Welding

© www.EMechatronix.com

Wet Welding

© www.EMechatronix.com

© www.EMechatronix.com

© www.EMechatronix.com

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

© www.EMechatronix.com

Rapid quenching decreases impact strength, Ductility.

Hydrogen enbrittlement.

Poor visibility in water.

Higher energy density of Hydrogen. Higher efficiency

Disadvantages of Wet Welding

© www.EMechatronix.com

Dry Welding/ Hyperbaric Welding

© www.EMechatronix.com

© www.EMechatronix.com

Dry Welding/ Hyperbaric Welding

© www.EMechatronix.com

© www.EMechatronix.com

© www.EMechatronix.com

Welder/Diver Safety.

Good quality welds.

Surface monitoring.

Nondestructive testing.

Advantages of Dry Welding

© www.EMechatronix.com

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

© www.EMechatronix.com