Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 19-03-2011, 21:34   #16
Registered User
Hotboy's Avatar

Join Date: Feb 2011
Location: Booker Bay, NSW, Australia
Boat: Westsail 33
Posts: 40
Re: Other peoples dreams...

Originally Posted by Boracay View Post
The big no-no with welding is not the welding, it's the grinding.

Those red hot small steel bits can travel amazing distances and embed themselves in someone else's pride and joy. Then they rust and leave marks everywhere...

It might have been my imagination but with a 10 amp power supply to my welder I had trouble getting a good arc. My suspicions fell on the long run of the mains power down the jetty and I might have had the earth a bit too far from the job. Close as possible may be better.
Those rust marks can be dealt with by making up a solution of oxalic acid and painting it on the stain. Brick layers use it to clean wood stains off bricks. Just be aware that it can take the gloss off paint work, but a buff and polish should bring it back.

As for poor arc. It depends on the a number of things. Consider the length of the power supply lead (shorter the better), the gauge of the power cable (thicker cable=less resitance), If using welding rods, make sure they are dry by heating them in the oven before use. The list can go on and on but make sure all connections are good and after all that if you happen to be on mains electricity supply that has a lot of other users at the time you want to weld, then I suspect you won't be receiving enough current to generate a nice arc.

Hotboy is offline   Reply With Quote
Old 21-03-2011, 03:30   #17
Registered User

Join Date: Mar 2009
Location: Australia, Central Coast.
Boat: Boden 36 Triple chine long keel steel, named Nekeyah
Posts: 776
Re: Welding a steel boat while she is in the water?

No problems welding afloat, but I would not weld on the inside of the hull plating if that plating was submerged on the outside.

boden36 is offline   Reply With Quote
Old 21-03-2011, 05:23   #18
Registered User

Join Date: Dec 2009
Location: St Croix,US Virgin Islands
Boat: Nonsuch 324, 30', Dulcinea
Posts: 72
Re: Welding a steel boat while she is in the water?

Welders I worked with on barges just let the ground dangle in the water next to the barge.
Irie is offline   Reply With Quote
Old 21-03-2011, 05:58   #19
Registered User
Philsboat's Avatar

Join Date: Oct 2009
Location: Brockville,Ont.
Boat: Mirage 25 "Garfield"
Posts: 137
Re: Welding a steel boat while she is in the water?

Keep the ground close to the area welded.I have seen welding currents follow the ground wires in instument cables resulting in melted cables.


Philsboat is offline   Reply With Quote


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Steel Boats and Welding SaltyMonkey Monohull Sailboats 634 04-05-2013 02:54
Welding Stainless Through-Hulls to a Steel Hull Boracay Construction, Maintenance & Refit 30 20-06-2010 01:06
Steel Yacht Designs for Blue Water Boracay Monohull Sailboats 33 11-01-2010 19:51
steinless steel fittings on steel boat Gregoris Construction, Maintenance & Refit 5 14-03-2009 07:03

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 19:34.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.