Tig Alum Question

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I keep running into this problem. I think it may be a gas coverage problem. When I try to add filler, it does not flow into the puddle. It just turns grey and builds up. I took some crappy pictures. Attached Images
Reply:Can you give some info?Metal thickness.Ampstungsten size/typecup sizeargon flowWithout that info as a starter, I'd be guessing.Dave J.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:1/4" aluminum. The base was pre-heated.1/8" gold band200 amps#6 cup15 CFH
Reply:Prior to attempting to add filler, is the puddle shiny or is there black crud/pepper flakes? 1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:I think you need to build your puddle up more before adding fiiller. With 1/4" youll need to lay on that pedal until you get things flowing. Might try a 3/32 tungsten too.OzDynasty 200DXMiller 210 Spooly
Reply:You are not melting the base enough to add the rod. Basically your rod is not melting into any puddle and is overheating. Slow down, get a good melt between the nut and the plated, then add the rod. I would advise you to clamp down the nut also as it may move when you add the rod.Also do a gas flow check at your torch. Many times the collet can become crushed or the collet body unthreads from the torch and restricts the gas flow. Check your backcap for a missing o ring or hole in the end. I advise everyone to purchase a portable flowmeter to verify gas delivery and calibrate tank flowmeter.Weld like a "WELDOR", not a wel-"DERR" MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li  ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.
Reply:Hey shovelon - know a good place to get those flow checkers?Can't find the internet place I bought mine and my brother needs one.Dave J.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:As stated..MORE HEAT.There should be a mirror image of your tungsten in the puddle before you add any filler..That nut is aluminum I presume?Are you trying to weld the nut to the plate?In that case BOTH need the mirror "Look" before adding filler.That can be a challenge because the arc will only concentrate on ONE surface at a time..You need to heat them both up at the same rate by concentrating on the PLATE first then aim at the nut and go back and forth without stopping the arc until both areas are hot enough to add filler.Then you need to connect one to the other and only then will it actually weld like it should....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Originally Posted by MinnesotaDaveHey shovelon - know a good place to get those flow checkers?Can't find the internet place I bought mine and my brother needs one.Dave J.
Reply:Found this one out the hard way too. More heat!Funny, I never ran into this until recently.Torchmate 2x2 CNC with Flashcut CNC controlsHypertherm Powermax45 Esab ET220i Razorweld 195 MigRazorweld 200ac/dc TigTormach 770, Tormach xstechRazorweld, Vipercut/Vipermig, SSC Foot Pedal Dealer
Reply:Originally Posted by shovelonwww.netwelding.com/MIG_Flow%20Rate-Chart.htmThese are graduated in CFH, not LPH.