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Tig welding tips
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<blockquote data-quote="stuftmunky2k" data-source="post: 468928" data-attributes="member: 9716"><p>there are 3 main rules when it comes to tig welding aluminum. Clean, Clean, and Clean. the cleaner the material the better the weld. granted machine settings like frequency and balance do make a difference on penetration and cleaning action. The best pointer I can tell someone on welding aluminum is hot and fast. Need to have good peddle control and be able to read a puddle. Best advice for people starting out would be grab a piece of 1/2'' thick plate mild or stainless and sit down and weld bead after bead after bead until the plate is filled up. then after its filled up flip it over and do it again, by doing that it makes you aware of how the puddle reacts to different factors like torch angle heat input and such. I look at tig welding like I giant game of manipulation. need to understand what the puddle is going to do by what you are doing with the torch. Walking the cup is pointless in my eyes unless its a vertical T joint or a beveled pipe. The easiest way to learn how to walk the cup is on a piece of 6'' sch 40 pipe with a 70 degree included bevel so 35 degrees on both ends. That way the cup sits down in the pipe and is like a track for it to follow. this will allow you to get the motion down of the wrist and or of your arm. I weld stainless steel process piping and do 90 percent of stainless at work. On the process piping the tubing is .065 wall thickness, it is butted up with no gap, pipe is back purged with argon and then the joint is welded. When the weld is complete you look inside and have a nice weld inside and outside with just one pass. I will post some pictures of my welds at work just messing around. Once you get efficient enough at tig anything or any gap is possible. As for pulse my personal opinion I hate it, but it does help with heat input. I look at it like a person cheating because they cant flow a puddle so they dumb it down. but that's just me. Any way enough rambling I will post some pics later tonight so you guys can see that the machine has nothing to do with weld output, its the person using the welder. Not trying to show off but this is what I do for a living so always willing to help anyone and show them what to look at.</p><p></p><p></p><p>this is the machine all these welds were done with. old stick welder converted to tig. all these are on 304 stainless steel and lift arc </p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0101.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0101.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>here is walking the cup on tubing first one is outside picture second is of inside with 100% penetration</p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/20131231_131014.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/20131231_131014.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/20131231_130908.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/20131231_130908.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>some random ones. </p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0102.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0102.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0111.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0111.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0231.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0231.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><a href="http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0232.jpg.html" target="_blank"><img src="http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0232.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="stuftmunky2k, post: 468928, member: 9716"] there are 3 main rules when it comes to tig welding aluminum. Clean, Clean, and Clean. the cleaner the material the better the weld. granted machine settings like frequency and balance do make a difference on penetration and cleaning action. The best pointer I can tell someone on welding aluminum is hot and fast. Need to have good peddle control and be able to read a puddle. Best advice for people starting out would be grab a piece of 1/2'' thick plate mild or stainless and sit down and weld bead after bead after bead until the plate is filled up. then after its filled up flip it over and do it again, by doing that it makes you aware of how the puddle reacts to different factors like torch angle heat input and such. I look at tig welding like I giant game of manipulation. need to understand what the puddle is going to do by what you are doing with the torch. Walking the cup is pointless in my eyes unless its a vertical T joint or a beveled pipe. The easiest way to learn how to walk the cup is on a piece of 6'' sch 40 pipe with a 70 degree included bevel so 35 degrees on both ends. That way the cup sits down in the pipe and is like a track for it to follow. this will allow you to get the motion down of the wrist and or of your arm. I weld stainless steel process piping and do 90 percent of stainless at work. On the process piping the tubing is .065 wall thickness, it is butted up with no gap, pipe is back purged with argon and then the joint is welded. When the weld is complete you look inside and have a nice weld inside and outside with just one pass. I will post some pictures of my welds at work just messing around. Once you get efficient enough at tig anything or any gap is possible. As for pulse my personal opinion I hate it, but it does help with heat input. I look at it like a person cheating because they cant flow a puddle so they dumb it down. but that's just me. Any way enough rambling I will post some pics later tonight so you guys can see that the machine has nothing to do with weld output, its the person using the welder. Not trying to show off but this is what I do for a living so always willing to help anyone and show them what to look at. this is the machine all these welds were done with. old stick welder converted to tig. all these are on 304 stainless steel and lift arc [URL=http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0101.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0101.jpg[/IMG][/URL] here is walking the cup on tubing first one is outside picture second is of inside with 100% penetration [URL=http://s272.photobucket.com/user/stuftmunky2k/media/20131231_131014.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/20131231_131014.jpg[/IMG][/URL] [URL=http://s272.photobucket.com/user/stuftmunky2k/media/20131231_130908.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/20131231_130908.jpg[/IMG][/URL] some random ones. [URL=http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0102.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0102.jpg[/IMG][/URL] [URL=http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0111.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0111.jpg[/IMG][/URL] [URL=http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0231.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0231.jpg[/IMG][/URL] [URL=http://s272.photobucket.com/user/stuftmunky2k/media/IMAG0232.jpg.html][IMG]http://i272.photobucket.com/albums/jj173/stuftmunky2k/IMAG0232.jpg[/IMG][/URL] [/QUOTE]
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