Pulsed spray mig vidieo

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OK, I took about 15 attempts to film the process.  The one I ended up with used a 300 watt bulb shining on the work, Helmet on its lowest shade and real close.  All that is really clear is the buzzing of the arc.Take a look and tell me what you think.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:This is what we did.  Notice the cleaning outside the welded area.Real world weldin.  When I grow up I want to be a tig weldor.
Reply:That is an interesting sound, I haven't done pulsed spray before. Is that with the V350?City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Not that i'm a pro or anything, but at the course i took, the teacher said that since heat rises, weld away from the heat, so from top to bottom. Worked for me with the same machine.
Reply:aDreamSoReal, you need to be careful on the vertical down welds (top to bottom) as if you are welding anything over 3/16" you run the risk of lack of penetration, likewise if you run an argon/oxygen mix vertical down, you can end up with a concave weld bead (no throat) as the puddle is very fluid.
Reply:No good, too hot. Try it on short arc with no pulse, you need to go faster across the middle and turn your heat and wire down and you won't get that big *** fall out in the middle.On the second picture you paused on the left side for too long and not enough on the right side, do a count for how long you pause, 1234 or what ever.
Reply:Originally Posted by aDreamSoRealNot that i'm a pro or anything, but at the course i took, the teacher said that since heat rises, weld away from the heat, so from top to bottom. Worked for me with the same machine.
Reply:More pics....First a prifile of the bead then a close up.  All done the same day.More upReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Last edited by David R; 12-25-2007 at 10:52 AM.Real world weldin.  When I grow up I want to be a tig weldor.
Reply:OverheadUP Too freekin HOT!Real world weldin.  When I grow up I want to be a tig weldor.
Reply:HorizontalMERRY CHRISTMASS!DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:David, first of all MERRY CHRISTMASThe set you posted at 9:44 looks a lot better !! Did you try any with a tighter weave and less pause ?? Looks like it'll be the only way to eliminate the undercut. I like the second pic of the set I noted...you just about had that one dialed perfect. The 2nd pic in the next post would be great if you could eliminate the undercut there as well.Anything worth doing is worth doing RIGHT
Reply:Olddad,The pause is what gets rid of the undercutting.  Not long enough and it doesn't fill the hole, too long and of course it sags.  Its a triangle weave on most of them.  The puddle is really fluid, but if the timing is good, it smooths right out as it cools.Heat has all to do with it in the world.  Too hot, sag and undercut. Too cool and no puddle to work with.  Sometimes even still sag or under cut because the metal doesn't fuse as well.Its like spray painting.  Put all on you can till its almost going to run.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by tanglediverThat is an interesting sound, I haven't done pulsed spray before. Is that with the V350?
Reply:David, that is correct about the pause, but if you tighten up the weave you have to speed up your travel to compensate. You know what you're doing, I was just wondering if you had tried it to eliminate the undercut.Anything worth doing is worth doing RIGHT
Reply:Originally Posted by olddadDavid, that is correct about the pause, but if you tighten up the weave you have to speed up your travel to compensate. You know what you're doing, I was just wondering if you had tried it to eliminate the undercut.