spray transfer MIG

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Ok since i made an *** out if myself the last time i posted something here lol figured id get your guys tips on spay transfer mig. Tomorrow ill practice some since now i know what the hell it is and im always trying to improve.  We run 35 wire if that helps. Thanks in advance
Reply:Originally Posted by steel_schmidtOk since i made an *** out if myself the last time i posted something here lol figured id get your guys tips on spay transfer mig. Tomorrow ill practice some since now i know what the hell it is and im always trying to improve.  We run 35 wire if that helps. Thanks in advance
Reply:Lol yeah seems like that process gets pretty toasty and i have a bad habit as it is of burning holes in my gloves from touching th3 metal. I blame the POS HF hood because i have to get so close to see lol
Reply:Do you have a welding machine that can get up in the high twenties for voltage? Attached ImagesDon’t pay any attention to meI’m just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
Reply:Yea we use millers that go up to 29.5V. I completely retract anything i said previously in the last post about quality of spray transfer welding. That bead is clean as hell
Reply:steel,Here's a good basic primer on the subject for you.http://www.lincolnelectric.com/asset...L-56/c4200.pdfAnd here's a table of some good basic settings to get you in the ball park.http://weldingdata.com/gmawdataCS.htm
Reply:Thanks for that info ht2
Reply:That seems like small wire for that amount of power,but I only tried it a couple of times a long time ago.My problem at first was a tendency to under cut, but every one is different.It is a pretty clean process. you just have to get used to moving a lot faster and how hot it gets.
Reply:Originally Posted by steel_schmidtOk since i made an *** out if myself the last time i posted something here lol figured id get your guys tips on spay transfer mig. Tomorrow ill practice some since now i know what the hell it is and im always trying to improve.  We run 35 wire if that helps. Thanks in advance
Reply:Yeah since my last forum post ive been trying to do as much research as possible on the web to get more knowledge on the subject.  Cant wait to try it out monday. Apparently the undercut is caused by you needing more wire from what ive found
Reply:Do you have spray transfer gas?They are usually mostly Argon and Helium with a little bit of CO2 or Oxygen in them.I think one of the favorites for spray transfer on mild steel is argon with 2% Oxygen.Last edited by mad welder 4; 02-15-2015 at 05:31 PM.old Miller spectrum 625 Lincoln SP-135 T, CO2+0.025 wireMiller model 250 and WP-18V torchCraftsman 100amp AC/DC and WP-17V torchCentury 115-004 HF arc stabilizerHome made 4 transformer spot welderHome made alternator welder
Reply:I honestly couldn't tell ya. Ill talk to the instructor. They basically taught us how to turn it on and run a few beads and figure out the rest (with guidence of course  )
Reply:We use spray transfer mig at my job, but we use .052 wire. Most of our guys use the push pull method for regular T joints, and usually little to no motion when filling a CJP weld (Complete Joint Penetration) As far as undercut goes from what ive seen (correct me if im wrong) but if you are laying your bead down more towards the top of the joint it can cause your wire to cut into the base metal as well as not enough wire, if your angle is incorrect (closer to 90° ) then you will have overlap. Practice makes perfect and you have to be comfortable before you start welding, if your hunched over to look at the weld then consider checking into cheaters (magnifiers) that you can insert into your shield to help keep you comfortable. But most people hunch over when first learning to weld to pay attention to everything going on inside the puddle but once you get used to it you can tell something is not right by the way the weld sounds. I know when I get overlap because my welds are much more quieter and you can see the puddle fall over the base metal at the same time. Pin holes are louder and looks like someone just lit a sparkler. We hold our guns as parallel as we can with the weld to give the best angle the more straight into the joint you hold it the more problems can occur is how I was taught...
Reply:Really? Weve been taught on tjoints to have it at a 45° angle basically straight into the joint.  But that's also for short arc not spray transferJust good enough aint good enoughIf your gonna be a bad welder you better be a darn good grinder
Reply:You will find the puddle very liquid and very hotBacked my CATMA over your CARMA oops clusmy me  What would SATAN do ?? Miller Trailblazer 302 AirPakMiller Digital Elite  Optrel Welding HatArcair K4000Suitcase 12RC / 12 VSHypertherm PM-45Rage 3 sawRusty old Truck
Reply:Not sure exactly what the angle is but its not 45° more like maybe 15° - 20° I could be wrong though
Reply:I always use run off tabs so i have a nice place to start and stop. Also I use 98/2 gas for spray on carbon.
Reply:Originally Posted by JbrewerNot sure exactly what the angle is but its not 45° more like maybe 15° - 20° I could be wrong though
Reply:That makes since. Well whenever this snow stops and i can actually go back to class ill mess around with it and see what i can come up withJust good enough aint good enoughIf your gonna be a bad welder you better be a darn good grinder