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Thread: welding structual beams
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6th March 2010, 03:44 PM #16
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Yes. I should have added that full penetration is essential.
Originally Posted by NewLou
Erm thats where a lota blokes get it wrong..................
I can lay down 25 neat stringer beads that looks the ducks guts n try to fill or fix anything! .................but if Ive got Cold Lap or the weld isnt Hot Enough (Through not using enough Volts/AMps) or not prepped correctly................ then the weld will fail!
Mig welders work differently to stick.........................
In a nutshell if your rig hasn't got enough balls to lay down a full penetration weld then u shouldn't be using it to weld structural jobs (ie: Be able to pump out at least 28VOlts) smaller 2 phase rigs cant do this.....................thats why U never see them being used in industry ...............
SMaller Rigs have there place but should never be used in a structural situation where a failure could mean death or injury !!!!
Regards Lou
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5th April 2010, 01:58 PM #17
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Why not use the stick welder full stop. It will be easier, neater and done with out struggling getting the mig up off the ground. Two rods that you would look at are cig ferrocraft 21 or a low hydrogen like WIA 16tc. I believe you are making a easy solution difficult for your self and the small inverter mmaw welding machines will operate well out of a 10amp outlet.
