![]() ![]() I only saw about 2 to 3 defects on four pieces with two weld areas on each totaling 16.5 inches each. That seems to have greatly reduced my worm tracks. Today, after writing my initial post, I was doing some flux/gas on some smoker trailers I'm building and decided to turn the wire speed down because I was getting a lot of BB's. I've tried power wire brushing the metal before welding. The metal is clean with a small amount of what I call flash rust it's not flakey or crusty. ![]() I've tried the Weld-Aid spray anti-spatter (some red liquid in a gallon jug sprayed with a common spray bottle), and I've tried no anti-spatter. I've tried the Radnor anti-spatter spray (the BB's from the flux/gas shielding are industrial when they stick larger and harder to remove than solid wire with 75/25). Brand new machine (my first MM 252 is about a year old), brand new wire right out of the box, drive rollers, new liner (to replace the factory one with the larger diameter liner). I bought a second MM 252 because I wanted two machines set up for this process for larger projects where having a machine on each side would allow me to save time (I've gotten spoiled on building smoker trailers with two machines). I figured the lube was a problem so I took it that I could not use the lube (new lube pad, and I did not add any additional lube to it). I took the lube pad off and, after burning through some wire a bit, the welds came out great like at first (same scrap metal, same condition). I started out with the Weld Aid lube pads and the welding was great for the first few small welds then went to crap (worm tracks and porosity). I'm using the weld chart on the machine to select the settings for voltage and wire feed speed. Welding on mild steel from 10 ga to 1/4" so far. New wire, right out of the box, selected for the shield gas I had, per the Lincoln website. I converted my MM 252 from solid 0.035 to flux/gas 0.045 (including the drive wheels to groove and the liner to the 0.035/0.045). I started this thread mostly with the idea that this all may have been covered elsewhere and a desire not to be rude and duplicate effort. I use a twist of old welding lead under the ground clamp to improve my ground (a tip from WTT.com), FWIW, so I'm confident I'm getting good ground (current and voltage being related). I'm using the weld chart on the MM 252 for the voltage and wire feed speed for the given thickness of base material not saying it's not a voltage problem, just saying what I'm doing. I was building a platform and was getting worm tracks, lowered my cfh and fixed my problem. Personal experience has been to much gas flow, therefore the puddle will solidify before the gas can escape. Some of them are to much voltage and moisture either in your wire or plate/air. There are a few things that can contribute to your "worm track" problem. Get us pictures when you get the opportunity. Some here have been talking about Forney being a good flux core, but I think it was gasless. As you progress and get more familiar with flux core, you will be able to tell a huge difference in quality. Personally I prefer Lincoln wires for mig and Hobart (Maxal) for TIG. ![]() Switch to dragging and you should be golden. I'm all ears but I'm pretty sure there's only a handful of factories that actually make this stuff so I'm not confident that one brand would be any better than another they may be the same with no way for me to know. I don't like buying anything red but I don't know of any better brand of filler metal. Not able to provide a picture at this time I'm not at my shop and I've moved (sold) or repaired all my problem parts at this time. Pushing (standard 15' gun on the 252, 0.045 wire, and I changed the liner to the 0.035/0.045). Well I think your problem is running Lincoln wire on a Miller machine. AKweldshop wrote:Welcome to the forum mate!! ![]()
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