Smithjr215
- Smithjr215
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New Member
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Posts:
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Joined:Mon Oct 26, 2020 6:46 pm
Hello everyone. Brand new to welding, been in school for a month. I have limited resources to ask about weld quality. Ok, none. Have a couple of welds here and was looking for overall critiques on each. 1F with mig, .045 flux core dual shielded with 25-75 co2 argon. All miller set up. Don't know the model but it is a external wire feeder. One was 20 volts at like 225 wire speed. 19 volts at about 215 wire speed. The other was 17-18 volts at 205 wire speed. The lower volt settings and the wire speeds are starting to escape me. Anyway, they are all fills and done with the weave technique. Two are a tighter weave than the other. Which is better. Any insight would be greatly appreciated.
- Attachments
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- 20v
- IMG_20201026_141300516.jpg (56.96 KiB) Viewed 884 times
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- 19v
- IMG_20201026_141308603.jpg (55.69 KiB) Viewed 884 times
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- 17v-18v
- IMG_20201026_141318755.jpg (54.39 KiB) Viewed 884 times
- weldin mike 27
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Weldmonger
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Posts:
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Joined:Fri Apr 01, 2011 10:59 pm
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Location:Australia; Victoria
Looking like you have a handle on things, but don't whip with flux core. Drag it the way you would with stick welding. The wire speeds will be lots higher than the comparable voltage on solid wires.
You are REALLY cold, that's your problem, dual shield should be in spray transfer mode and done with just a straight drag, no whipping, weaving etc. If it's set right you shouldn't have any real spatter to speak of and your bead should be completely smooth. I'd suggest raising your voltage up to 22-24 at the same wire speed, and I also like 27 volts and 400 IPM. It's just not intended to be ran short circuit.
I agree, too cold. For the Lincoln wire I run a good starting point that my monkey brain can remember is 24volts and 240 ipm. And then usually go up from there if I want more travel speed. Longer stickout than hard wire, due to you want the flux in the wire to heat up before its melted into the puddle. And due to that longer stickout you need usually need more gas. I'm usually around 40 CFH. Always a straight drag, no whip. Dual shield leaves a nice flat weld and the slag should come off very easily.sbaker56 wrote:You are REALLY cold, that's your problem, dual shield should be in spray transfer mode and done with just a straight drag, no whipping, weaving etc. If it's set right you shouldn't have any real spatter to speak of and your bead should be completely smooth. I'd suggest raising your voltage up to 22-24 at the same wire speed, and I also like 27 volts and 400 IPM. It's just not intended to be ran short circuit.
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