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  1. #1
    Join Date
    Mar 2007
    Location
    Northern Colorado
    Posts
    3

    Default Newbie needs some help

    I just recently aquired a Dynasty 200 DX. I have to teach myself how to do this new craft. Things started pretty well then went you know where. I think my problem is I contaminated my tip but it goes beyond what's described in the books. I observed the following: The arc seems to climb up the electrode. The copper appears eroded and there is a carbon film inside the nozzle.

    Now, do I need a new nozzle? I cut back the electrode and ground a new point. but the arc seems to come from everywhere and the aluminum seems to turn black.

    Any advice would be appreciated as I have no one to ask that knows TIG welding.
    Last edited by Roger; 03-24-2007 at 05:49 PM. Reason: mis spelled word

  2. #2
    Join Date
    Jan 2007
    Location
    Alberta Red Deer
    Posts
    373

    Default

    first off what type of tungsten are u using? and u do not need to grind the electrode to a point. and what copper are u talking about? if the cup is not broken then just give it a good cleaning make sure ur stick out is not to much and u have good gas flow. if that dont work then post another thread.
    trail blazer 302
    hypertherm plasma
    millermatic 251
    high feq. arc starter
    suit case (extreme 12vs)
    o/a torches
    way to many other tools to list

  3. #3
    Join Date
    Mar 2007
    Location
    Northern Colorado
    Posts
    3

    Default

    I'm using pure tungsten the copper I'm talking about is the colett body. The black carbon doesn't seem to want to come off the nozzle, it's stained pretty good.

  4. #4
    Join Date
    Jan 2007
    Location
    Alberta Red Deer
    Posts
    373

    Default

    i wouldn't worry to much about the carbon. check you balance and hertz on your machine. and gas flow is critical.
    trail blazer 302
    hypertherm plasma
    millermatic 251
    high feq. arc starter
    suit case (extreme 12vs)
    o/a torches
    way to many other tools to list

  5. #5
    Join Date
    Sep 2005
    Posts
    100

    Default

    What are you using for gas? What is your flow rate? Are you balling the Tungsten? Metal thickness, Amperage? etc.

  6. #6
    Join Date
    Mar 2007
    Location
    Northern Colorado
    Posts
    3

    Default

    Arc you got it right about the balance. Somehow it got changed ( I think the dog did it ) Went through all the settings and it started working better. Too many buttons for a beginner.

    Thanks

  7. #7
    Join Date
    Jan 2006
    Location
    Albuquerque, NM
    Posts
    1,788

    Default

    If you got the machine used and didn't get a manual you can download one from the miller site. Ditch the pure tungsten, get some thoriated, or better yet lanthanated, in either 1/16" or 3/32" sizes. Grind to a point with about a 30 degree taper. Gas should be 100% argon with a flow rate between 10 and 20 CFH, start at 20 and work your way lower till you start having problems. Measure the aluminum stock you are trying to weld and set your amperage to 1 amp per .001" of thickness as a starting point. Make sure the stock is clean using a stainless steel brush & and/or acetone wipe. Sounds like you have the balance and hertz set so you should be ok there, leave the rest of the controls alone until you get the hang of things. Miller has some education stuff that will help, it's located in the education tab on the main page.
    Regards, George

    Hobart Handler 210 w/DP3035 - Great 240V small Mig
    Hobart Handler 140 - Great 120V Mig
    Hobart Handler EZ125 - IMO the best 120V Flux Core only machine

    Miller Dynasty 200DX with cooler of my design, works for me
    Miller Spectrum 375 - Nice Cutter

  8. #8
    Join Date
    Jan 2007
    Location
    Alberta Red Deer
    Posts
    373

    Default

    the machines are nice but they are a little complex for a beginner but hey if ya want the best then why not learn with the best. i love my 200 DX so nice with the options once you learn to use them.
    trail blazer 302
    hypertherm plasma
    millermatic 251
    high feq. arc starter
    suit case (extreme 12vs)
    o/a torches
    way to many other tools to list

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