Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 4 of 4

Thread: Submerged arc welding - videos

  1. #1
    Content Editor
    Supporting Member
    Altair's Avatar
    Join Date
    Aug 2013
    Posts
    2,496
    Thanks
    756
    Thanked 6,373 Times in 1,749 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Submerged arc welding - videos

    Submerged arc welding (SAW) is a welding process where the molten weld and the arc zone are protected from atmospheric contamination by being submerged under a blanket of granular fusible flux.






    Previously:

    Friction welding drill pipe for oil exploration
    Basket welding - GIFs
    Cold welding GIF
    Pile cage welding machine - video
    Friction stir welding - GIF, video, and images
    Slow motion linear friction welding of titanium - GIF and video
    Passivating welds with electrolytic cleaning - GIF and video

  2. The Following 2 Users Say Thank You to Altair For This Useful Post:

    ranald (03-23-2019), Seedtick (03-23-2019)

  3. #2
    Supporting Member baja's Avatar
    Join Date
    Dec 2017
    Posts
    153
    Thanks
    5,405
    Thanked 47 Times in 35 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    baja's Tools
    I knew a guy that was by most accounts a
    great underwater welder. I never saw any of his underwater welds but his above-water welds looked atrocious. Maybe his glasses that looked coke-bottle-thick had something to do with it.

  4. #3
    Supporting Member ranald's Avatar
    Join Date
    Jan 2018
    Location
    Black Mountain Queensland
    Posts
    1,289
    Thanks
    897
    Thanked 346 Times in 239 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    ranald's Tools
    beyond my scope.

  5. #4
    Supporting Member
    Join Date
    Sep 2012
    Location
    Hinchinbrook QLD
    Posts
    286
    Thanks
    37
    Thanked 120 Times in 74 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Any welder diver worth his salt should be able to lay down perfect beads in any position above the surface
    Quote Originally Posted by baja View Post
    I knew a guy that was by most accounts a
    great underwater welder. I never saw any of his underwater welds but his above-water welds looked atrocious. Maybe his glasses that looked coke-bottle-thick had something to do with it.
    Corrective vision would have nothing to do with it. If his dry welds were crap, then his wet welds would not be acceptable.

    Underwater welding is done on DC and the workpiece is connected to the positive. It uses a special, waterproof, electrode that is held against the work (meaning you dont maintain an arc gap). They still get consumed as normal. The HAZ in wet welding is atrocious due to the rapid cooling and is generally only performed for temporary repairs, patches etc. or for non critical joins, eg sacrificial anode attachment.
    Any critical repairs, eg pipelines, are usually performed in habitats.

    You can teach a diver how to weld, but its much easier to teach a welder how to dive.


    Post your reply!
    Join 42,532 of us and get 500+ tool plans, tool eBooks, build guides, and much more.



    eBooks for Supporters

  6. The Following User Says Thank You to 12bolts For This Useful Post:

    Frank S (03-24-2019)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •