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Dry welding and wet welding

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Underwater welding has two types...
Dry or Hyperbaric welding and wet welding.

Published in: Technology, Business

Dry welding and wet welding

  1. 1. ByMr. Rohitkumar G. Rathod © www.EMechatronix.com
  2. 2. © www.EMechatronix.com
  3. 3. © www.EMechatronix.com
  4. 4. Underwater Welding :DRY WELDING WET WELDING © www.EMechatronix.com
  5. 5. Options:© www.EMechatronix.com
  6. 6. © www.EMechatronix.com
  7. 7. © www.EMechatronix.com
  8. 8. Two Possibilities… Electrode design These copper coated Packingcarbon/graphite electrodes Creating Habitat, cover overare especially made for the the weld spot.Arcwater process. Arcwater electrodes that are © www.EMechatronix.com
  9. 9. Wet Welding© www.EMechatronix.com
  10. 10. Wet Welding© www.EMechatronix.com
  11. 11. © www.EMechatronix.com
  12. 12. © www.EMechatronix.com
  13. 13. Advantages of Wet WeldingCheapest and Fastest method.Tensile strength is high.Ease of access the weld spot.No habitat, no construction, no waste of time. © www.EMechatronix.com
  14. 14. Disadvantages of Wet WeldingRapid quenching decreases impact strength, Ductility.Hydrogen enbrittlement.Poor visibility in water.Higher energy density of Hydrogen. Higher efficiency © www.EMechatronix.com
  15. 15. Dry Welding/ Hyperbaric Welding © www.EMechatronix.com
  16. 16. © www.EMechatronix.com
  17. 17. Dry Welding/ Hyperbaric Welding © www.EMechatronix.com
  18. 18. © www.EMechatronix.com
  19. 19. © www.EMechatronix.com
  20. 20. Advantages of Dry WeldingWelder/Diver Safety.Good quality welds.Surface monitoring.Nondestructive testing. © www.EMechatronix.com
  21. 21. Disadvantages of Dry WeldingHigher 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. © www.EMechatronix.com

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