Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums
 
Miller Welding Discussion Forums - Powered by vBulletin

Results 1 to 3 of 3

Thread: Tig or Mig

  1. #1
    Join Date
    Mar 2007
    Location
    Carson City, Nevada
    Posts
    32

    Default Tig or Mig

    Lets see were do I start. My project is on a nice 44' aluminum sport boat. The top is canvas with plastic windows. What I need to do is replace the top with aluminum sheet and frame in the windows for the glass panels. The framing for the windows will be square 1 1/4 tubing. The top will be .125 sheet. My question is what would be best Tig Or Mig. I am looking at the Dynasty 350 or the Invision 354MP. The inverter machine will be run off the 12kw gen set on the boat. 230v single phase. There is some welding on the .250 deck also. New water tight hatches will be installed. I am not looking for speed just the best tool for the job. I can stick and gas weld but have never tig or mig welded.

    Kevin

  2. #2
    Join Date
    Nov 2006
    Location
    Lake of the Ozarks MO
    Posts
    3,535

    Default

    I say mig. That is what a mfg would pick. Read articles on the miller resources section and you will see that is exactly what the 350P is designed to do. You can run long beads on pulse and not warp.
    A tig would just not be used for those long welds without warping unless you simply stopped and started hundreds of times.
    Fixing cracked welds on that boat the tig would rule in places like below the waterline but fabricating big sheet nothing beats mig and now nothing beats pulse-spray mig.
    Believe it or not I am not sure if you could run a 350P off of a genny and I am not familiar with the machine you mentioned but I do know that if you can afford a 350 Dynasty you will find a mig way under the cost of that machine.
    Mig on aluminum is way easier to master BTW.
    HTH Garry

    P.S. if you replaced that generator with a Trailblazer 302 you could make the power and weld the boat at the same time and you would litterally have a boat that could fix itself for even less money!!!
    Last edited by FusionKing; 02-24-2008 at 06:25 PM. Reason: More crazy ideas
    Miller Dynasty 700...OH YEA BABY!!
    MM 350P...PULSE SPRAYIN' MONSTER
    Miller Dynasty 200 DX "Blue Lightning"

    Miller Bobcat 225 NT
    Miller 30-A Spoolgun
    Miller WC-115-A
    Miller Spectrum 300
    Miller Spoolmate 200
    Miller 225 Thunderbolt
    SPEEDGLAS 9100XX

  3. #3
    Join Date
    Mar 2007
    Location
    Carson City, Nevada
    Posts
    32

    Default

    There will be at least 175 1 1/4 welds. Flat , vert & horz. The top .125 sheet could have 40' of weld along the seam & edges. The deck could have 30' of weld on .250 thick sheet plus welding three watertight hatches. When this is all done the welder will be in my shop for use on miss projects. Cars , trailers ect.
    Kevin

Posting Permissions

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

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 82

Welding Projects

Special Offers: See the latest Miller deals and promotions.