burning through

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im using A Clarke 180EN 220volt MIG with 100% Argon and .35 wire.wire speed on 8 out of 10. and setting has  a min/max, and a 1,2,3 setting. i had it on min3 wich is a good setting says the manual for the thickness pipe i was doing.im new to MIG, but i didnt think it would be so hard since i was real good with my Lincoln flux core welder.well, i was trying to weld together two pipes (for an intercooler set-up). and if i move real fast the weld seems fine. but i dont see much penetration if i look on the other side. look for heat marks right? but if i slow down just a little, i burn right through.i was trying to tack it too, like i would with my flux core welder. to get that TIG look. didnt really work out to well.but i did fine when i took and old intake manifold and filled in a hole (big enough to fit my thumb in). that was cast aluminum though. set on max2tip please???
Reply:First never attempt to make GMAW (MIG) look like anything but GMAW. It will never be GTAW (TIG) so stop trying, all you end up with is a series of lo penetration cold lap bird poop. At to you burning through slow down to the point that you don't burn through.Check the polarity setting and tell us the material and the type of wire you are using.Jimmy
Reply:I had the same welder up to about 6 months ago, & i did all sorts of 18-20 ga sheet metal with it on Max/2.  I would just say practice more with it before you continue on, that may be all you need.
Reply:Pure argon is the wrong gas.  C/25 is what works.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:100% argon is for aluminum. a mix would be for steel, or many other things...i tryed some thicker flat metal. i did pretty good. i did real well when filling in a few holes on a spare intake manifold, wich is cast aluminum.i even did decent welding the pipe in a strait line. but when i actually try to weld the two together, it burns through sooo quick. i guess the edges are way harder to do??? lower setting for edges maybe?how far should i hold the gun away? i did best when i let the gaurd slide across the metal.
Reply:Hold the gun about a 1/2" away.and is it burning away right away or after a few second?Cause i know as well as you probably do aluminum soaks up the heat....so are the pipe beveled or just a square groove?6G zirconium 702 GTAW 2" xxheavy6G P.E.D. carbon steel GTAW 2" xxheavy3G titanium Gr. 2 - Gr. 7 GTAW up to 3/4" 3G 316L stainless GTAW up to 1" 3G carbon steel GTAW up to 1" 3G Hastalloy GTAW up to 3/4"1G tantalum GTAW up to .060"
Reply:not right away. maybe about 1 second to burn through. they are not beveled...should i bevel the edges when using MIG???also, this piping has been polished or has been coated to look like its been polished. i sanded it down pretty quickly until it got ruff. then wire brushed it. so i dont think that would still be a problem.with the speed i have to move to not burn through, theres no way i could weld around a pipe. barely keep a strait line. i cant see where im going. how can i slow down my weld so i can be more accurate. because if i set the tip on the pipe, and just slide it as i hold the trigger, the weld looks good. but im moving quick and not watching anything.