Going from short circuit to spray advice?

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I class we just went from short circuit to spray, hotter and faster, I'm a little intimated by the spray due to the speed.  I was just getting comfortable with short circuit and was finding my pocket/groove with it.  Any pointers or advice?
Reply:Originally Posted by brow_tinesAny pointers or advice?
Reply:Darker lens . Heat shield on support glove hand . Sun screenWatch puddle . Move fastSent from my SPH-D700 using Tapatalk 2Backed 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:Make sure you have the power.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:Originally Posted by mad welder 4Make sure you have the power.
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Reply:Originally Posted by brow_tinesI don't understand
Reply:If you have a 110v machine chances are it will not have enough power to spray transfer.There is no way my 110v machine will spray.I have a millermatic 252 I use (not mine), it could easily do spray transfer with ease, but we leave it set up for short circuit, because it works and you can use cheap CO2. I might have to drag in my personal gas mixing rig and .025'' wire and give spray a try one day.If you have the right wire, your machine and methoid mesh, then short circuit will work great.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:.025 wire kind of small ain't itI have a spool of .035 that I will bring to the weld o rama along with the bottle of 90/8/2 tri mix So guys have a chance to run a machine in spray modeIf I had the money I would get some .045 or larger wire for the guys to play withLove it when you hit the zone and it goes suddenly quiteWay different than the frying egg sound of short circuit modeSent from my SPH-D700 using Tapatalk 2Backed 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:Originally Posted by killdozerd11.025 wire kind of small ain't itI have a spool of .035 that I will bring to the weld o rama along with the bottle of 90/8/2 tri mix So guys have a chance to run a machine in spray modeIf I had the money I would get some .045 or larger wire for the guys to play withLove it when you hit the zone and it goes suddenly quiteWay different than the frying egg sound of short circuit modeSent from my SPH-D700 using Tapatalk 2
Reply:I'm doing it at school on a Miller 22A, volts 26, wire speed on 8 with 86/14 argon/co2 with .035 wire
Reply:I was just getting the hang on facing with short circuit, they was actually looking good and they switched us to spray.  Now switching from short circuit to spray is different lol
Reply:I'm curious as to why you'd go to the extra expense of using "Tri-mix" to weld on carbon steel?
Reply:Spray is great if you have the metal to support the heat. For most of the steelwork we do at my employment we spray anything from 10ga  on up. We use ER70S-6 .045 & .035 dia, with 90/10 argon co2 mix. I have sprayed with .030 wire it worked nice, would like to try .023 but we don’t have the rollers. What I tell guys who are a bit nervious about getting into spray it turn your wire speed up till you hear a very very slight crackle every now and then… You would be close to turning into hot short arc,, but it seems to give them a chance to get used to gun angle, travel speed, etc., etc. without the dismay of seeing under cut or giant oversized beads and such… But my person preference for spray is turn your wire speed to a slight crackle then back it off until it is a distinct hissing sound… A lot of guys let it go dead silent, you see very smooth beads,,,, but they are also way oversized, concave, slightly undercut, and tons of brown soot on the weldment and during welding. Visually the way I have learned is  when you let up on the trigger your wire should be burnt off sharp on the end and you should see the wire squirting like water from a hose, not the balls of molten metal transferring across. But however each teacher teaches it to their preference too. But good luck.P.S. same as with short arc, grind your scale off, and you will pick it up allot quicker.TOOLS AND TOYSSMAW Mid States Inc. "MISSING LINK" 10-150 AMP Buzzer circa 1945ishSMAW Magic Wand 40-60 AMP Suitcase Buzzer circa 1939ishGMAW Hobart 210 IronmanOxy-Propane TorchMany other old and cold goodies"Rusty but Trusty"
Reply:Originally Posted by 4956I'm curious as to why you'd go to the extra expense of using "Tri-mix" to weld on carbon steel?
Reply:Originally Posted by brow_tinesI'm doing it at school on a Miller 22A, volts 26, wire speed on 8 with 86/14 argon/co2 with .035 wire
Reply:Originally Posted by DSWI think you are thinking the wrong kind of trimix. He's talking about Stargon CS from Praxair I'm pretty sure, 90% Argon, 8% CO2 and 2% O2, not a helium mix most think of when the term "trimix" is used.
Reply:Originally Posted by 4956I'm curious as to why you'd go to the extra expense of using "Tri-mix" to weld on carbon steel?
Reply:This is a pulsed spray bead on 1.25" x .074 wall square tube using .035 70S-6, 90/10 and a WFS of 195.   It took about 6 to 7 seconds to make it so that puts my travel speed in the 10.5 to 12.5 ipm range.
Reply:Originally Posted by 4956brow_tines,If you want to find out your wire speed in IPM (inches per minute) here's what you do....clip the wire off even with the nozzle then pull the trigger and hold it for 6 seconds (time it with a watch).   Measure the wire that's come out and multiply that by 10.   This will give you your WFS (wire feed speed) in IPM.   Knowing this will help you when you move on to different machines or try and discuss things with other welders.   Saying you had your wire speed set on "8" just isn't a very meaningful parameter to keep track of.
Reply:Originally Posted by brow_tinesNo tri-mix it's 86% Argon 14% Co2
Reply:Originally Posted by brow_tinesThanks for the tip, I think the instructor said 900 ipm.  The reason for those specific settings is that's what Gatormade trailers supposely uses at there local factory.
Reply:What advantage does spray offer over short circuit?Besides being fasrer.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:smoother bead appearance, "should" be no splatter, deeper penetration, in some cases less warpage.... suppose there is a few moreTOOLS AND TOYSSMAW Mid States Inc. "MISSING LINK" 10-150 AMP Buzzer circa 1945ishSMAW Magic Wand 40-60 AMP Suitcase Buzzer circa 1939ishGMAW Hobart 210 IronmanOxy-Propane TorchMany other old and cold goodies"Rusty but Trusty"
Reply:Originally Posted by DSWI think you are thinking the wrong kind of trimix. He's talking about Stargon CS from Praxair I'm pretty sure, 90% Argon, 8% CO2 and 2% O2, not a helium mix most think of when the term "trimix" is used.Keep in mind that spray transfer is also a good way too turn a 250 amp MIG gun into toast pretty quick and its also real easy to overheat your machine.Miller xmt304,  Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.
Reply:Originally Posted by M J DKeep in mind that spray transfer is also a good way too turn a 250 amp MIG gun into toast pretty quick
Reply:Originally Posted by CEPOh so true! I played with spray a little bit with my 250-amp Mig gun. If the contact tip was longer I think I could have tied it in a knot.
Reply:Originally Posted by brow_tinesI'm doing it at school on a Miller 22A, volts 26, wire speed on 8 with 86/14 argon/co2 with .035 wire
Reply:At the structural job I had we ran 90% AR, 8% CO2, 2% O2 Due to WPS we were all limited to 28.5 to 33.00 Volts and 375 to 450 ipm wire speed. Lincoln DC-600 power supply with remote feeders 0.045 Lincoln L-56 (ER70S-6) and 25' tweco 600 amp guns with a high/low switch But when we had "down time" we would see just how hot and how fast we could run them. And to this day I wish I had pictures to prove what we were able to do. The max on the "newer" (at that time) lincoln rigs was 60 volts and 1200 ipm - yes, we got to a point where we could lay down a solid weld at those parameters. I would have loved to try a flat weld test on 1" plate with those settings to see how it bent.