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t joint
Posted: Sun Feb 17, 2013 1:57 am
by jrcll
when welding a t joint on thin aluminum , say anything under .125 , i`m struggling to not melt the the end away, i read that you need to start in a lil ways and weld back to the end ?, any tips or ideas ?....thanks
Re: t joint
Posted: Sun Feb 17, 2013 2:11 am
by weldin mike 27
Hey,
Welcome to the forum. There are a few Big Aluminium brains on here, so somebody should be along to help you directly.
Mick
Re: t joint
Posted: Sun Feb 17, 2013 1:21 pm
by semihemi
i find most of my burn thus at the end but i know why that is and im working on fixing it.....death grip+mashed peddle=burn thru.....
Re: t joint
Posted: Sun Feb 17, 2013 6:26 pm
by Otto Nobedder
On thin stuff, that's my preference... To start in a little way. Then, when I come back to it, I do that bit downhand and taper the heat off a lot to close the last bit.
Steve S
Re: t joint
Posted: Thu Feb 21, 2013 7:12 am
by foamballer
Which end is melting - start or finish? or both?
I agree with the other guy's suggestions. In addition, don't forget your filler rod! - you can use it to immediately fill the receding edges on startup and add that crucial little bit of metal that you need. When you get near the end and everything is about to go pear shaped (because you forgot to back off the pedal or didn't start your downslope early enough), you can leave the rod in the puddle to absorb some of the heat and make sure your weld doesn't keyhole too much.