Need a little advice please on mig welds.

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I just bought a ESAB 300 and sent my ESAB 280 back.Here is what I have.On the 14ga outside corner I feel like everything went ok.That was welded with 150ws,15volts,c25,at 20cfh with .035 solid wire.The 1/4 wall tubing welded to the channel was with 350ws,19volts.My question is what to change to get less of a pointed bead.I was pushing the gun,with a 10 or 15 degree tilt into the bead.Using a flush tip nozzle. The nozzle opening was 3/8 on the 14ga weld and 1/2 on the thicker stuff. Attached ImagesLast edited by JackLegg; 09-21-2012 at 01:18 PM.
Reply:more pics Attached Images
Reply:Voltage controls bead appearance. Amps (wire speed) control penetration.  so try changing the volts do a big jump and then back off till u find the bead look you want .Nice Machine BTW.Tiger Sales:  AHP Distributor    www.tigersalesco.comAHP200x; AHP 160ST; MM350P,  Spoolmatic 30A; Everlast PowerTig 185; Thermal Dynamics 60i plasma.  For Sale:  Cobra Mig 250 w/ Push-pull gun.  Lincoln Wirematic 250
Reply:As soutthpaw stated, increasing the voltage will generally give you a smoother-looking bead. The correct voltage for your wire speed is when the arc has the proverbial "frying bacon" sound.On the quarter-inch wall material, you may also want to turn up the speed- I usually run at 300 - 325 ipm on 11 ga. steel, which is less than 1/8".On the first pic in your second post, I see some inconsistency in travel speed. The "pointiness" that you see on the right half of that bead, as well as some coldness, is the result of moving too fast.Also, dragging rather than pushing will give you more penetration and better bead appearance, especially on fillets. Pushing is best for thinner sheet, to avoid burn-through.HTH,JohnA few weldersA lot of hammersA whole lot of C-clamps
Reply:On the 1/4", along with increasing the voltage and wire speed, you may also want to try slowly increasing your inductance.Pulling the puddle is going to cause the weld to want to crown even more.On the 14 ga, the wire diameter that you are using could be a possible cause. .030 diameter wire would be a better choice for 14 ga., especially on an outside corner joint. You might try playing with the inductance a little to help flatten out the weld bead.ESAB Migmaster 250 Hobart Ironman 230Multimatic 215TWECO Fabricator 181i & 211iHH125EZ - nice little fluxcore only unitMaxstar 150 STH - very nice
Reply:Like Dan said, .030 wire will help. Try to get some Esab Spool-arc 86 for that machine. Nice wet-out, and very low spatter.  You will need to buy drive rolls, output guide tube,and tips of course. Use C-25 gas. Door Chart is a bit cold on the voltage, so bump it up some.. More Inductance will help too.Esab/Lorch ET-220iEsab 160i caddyThermal LM-200 Lincoln feedersThermal Pee-Wee 85sThermal 60i- 3phase /RPC powered (Beast)Thermal Drag-gun 35CINE 1500 Klutch 140i