Lessons learned about Aluminum

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Something I figured out when welding Aluminum. I was using WAY to much heat . Not only that I had the torch way to close causing my to hit it all the time. Now all I need to figure out is how to make the end of the weld look good. I have the little crater going
Reply:To avoid the little crater, back off of the pedal gradually and either build up the puddle with a small amount of filler or tie-off the puddle into the parent metal.- Paulhttp://all-a-cart.comWelding Cart Kits and accessories
Reply:too much heat is a commen starter mistake as charts show high heat is needed for full penitration, the trick is to use lots of filler to keep it cool and move fast to prevent melt threw. when first doing tig you tend to go verry slow. as aluminum tends to melt threw fast you need to be adding filler to keep it cool . after you have more time pn the torch and increase your speed you can also increase the heat so it dose not take as long to get a puble that is full penitration. the hole point to TIG is to not put as much heat into the serounding matereal, so if you are sitting there waiting on the pudle to form you are adding heat to the rest of the pice as well, where a higher heat will make a pudle with full penitration quickly and alow you to dab and go leaving heat on the area for a shorter time and creating a smaller HAZ (heat afected zone) as the HAZ is the weakest point of the weld joint keeping it as small as posible is best. a gas saver cup or gas lense will realy help with the hitting the work as it will alow you to extend the tip out ferther wile still giving good gas coverage, this will make seeing the tung. easyer and make you less likely to hit the work or filler with it.ZTFAB is right on about the crater fill, just drop back on the amps and add one last dab of filer.the key her is practice, practice, practice,....did i mention you need to practice, LOL its one of those things you cant rush, you have to get used to what the pudle looks like just befor melt threw and how fast to move as well as how much filler to add. just joining the aluminum togather is fairly easy, getting good penitration, plenty of filler , and as small a HAZ as posible will take time. the estedics or looks can come later a good solid weld is the first priority. summer is here, plant a tree for mother earth. if you dont have time or space, sponcer some one else to plant one for you.feel free to shoot me a PM or e-mail me at [email][email protected] i got lots of time.
Reply:the welder you use can also help keep the HAZ down, the new enverters are cheaper and can alow for higher hrt's to keep the arc and heat focused.i have the TA-185 and it dose a great job on aluminum. that being said you dont need an inverter to do aluminum, it just makes it easyer  Attached Images summer is here, plant a tree for mother earth. if you dont have time or space, sponcer some one else to plant one for you.feel free to shoot me a PM or e-mail me at [email][email protected] i got lots of time.
Reply:check this out..http://www.weldingweb.com/vbb/showthread...roper+end+weld...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:nice end demo, too bad it starts getting clouded up a bit by heat settings. that thread could use a lil more posting, maybee i'll add on to it later today, explain walking the cup for him. summer is here, plant a tree for mother earth. if you dont have time or space, sponcer some one else to plant one for you.feel free to shoot me a PM or e-mail me at [email][email protected] i got lots of time.