Announcement

Collapse
No announcement yet.

Bad Tungsten Possible?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Bad Tungsten Possible?

    I use a dynasty 350 and just started a new box of 1/16? 2% orange band tungsten. I have the machine set at 125 amps, 70% balance, 140 en, 95 ep, 125 hz. Start up amps 40. Trying to do a fillet on 3/32 aluminum. Preflo .2-.4 sec, and post flow both automatic and 12 seconds with a flow of 14 on a gas lens. Tungsten is ground the correct way and leaving a small land on the end. Aluminum wire brushed with stainless, wiped with acetone. Start the arc and I immediately get contamination running all over, then the tungsten starts to ball and runs all over the place and as well, the arc runs all over the place. If I keep going for an inch or so, the ball seems to finally stabilize a little but droops to the down side. If I run a horizontal bead on the same stock, I see the tungsten start to split for a second or so but then it forms the ball and works ok. Never had the problem with my last box. It is a name brand private label from airgas. Tried two sticks and the same. Am I missing something or do you get bad tungsten from time to time.

    Note: Edited as I just read and see I typed wrong aluminum thickness: It is 3/32" thick.
    Last edited by Leefy; 08-01-2009, 01:03 PM.


    Dynasty 350 - My New Baby
    Millermatic 210 Mig with Spoolmate 3035
    Miller Thunderbolt XL 225/150 AC/DC Stick Welder
    Miller Specturm 625 Plasma Cutter
    Speedglas 9100 auto dark helmet
    Jackson auto dark helmet
    18.5 CFM Eagle Compressor
    Oxy/Act
    Horizontal Band Saw
    Dewalt 14" Chop Saw
    7 1/2 Dewalt Angle Grinder
    4 - 4 1/2" Sears Angle Grinders
    1 - 4" Makita Angle Grinder
    2 - IR Die Grinders
    All of which my wife says will be a "he$$ of a garage sale"

  • #2
    Have you tried a bigger tungsten? 3/32 or 1/8? 1/16 is small for welding 3/16 alum. You may just be burning it off. If you have successfully used this setup before then I would say a gas problem or material problem. Very unlikely a new tungsten is bad.
    MM250
    Trailblazer 250g
    22a feeder
    Lincoln ac/dc 225
    Victor O/A
    MM200 black face
    Whitney 30 ton hydraulic punch
    Lown 1/8x 36" power roller
    Arco roto-phase model M
    Vectrax 7x12 band saw
    Miller spectrum 875
    30a spoolgun w/wc-24
    Syncrowave 250
    RCCS-14

    Comment


    • #3
      Do u mind to disclose everething that is in the tung box tag??

      and the supplier and manufacturer?


      tks

      Comment


      • #4
        Originally posted by MMW View Post
        Have you tried a bigger tungsten? 3/32 or 1/8? 1/16 is small for welding 3/16 alum. You may just be burning it off. If you have successfully used this setup before then I would say a gas problem or material problem. Very unlikely a new tungsten is bad.
        NOTE: I goofed up typing the thickness of the aluminum. It is 3/32" thick.

        Have used a 3/32 but switched to the 1/16 to see if I could get a narrower fill bead using 1/16 filler. Everything was ok with the 3/32.

        Originally posted by John Brison View Post
        Do u mind to disclose everething that is in the tung box tag??

        and the supplier and manufacturer?


        tks
        John. The package says TNG 116x72 Cer and 1/16x7" 2% ceriated AWS Class EWG. Specifications ANSI?AWS A5-12, JIS but has no other branding but like I said, it was purchased at airgas.
        Last edited by Leefy; 08-01-2009, 01:02 PM.


        Dynasty 350 - My New Baby
        Millermatic 210 Mig with Spoolmate 3035
        Miller Thunderbolt XL 225/150 AC/DC Stick Welder
        Miller Specturm 625 Plasma Cutter
        Speedglas 9100 auto dark helmet
        Jackson auto dark helmet
        18.5 CFM Eagle Compressor
        Oxy/Act
        Horizontal Band Saw
        Dewalt 14" Chop Saw
        7 1/2 Dewalt Angle Grinder
        4 - 4 1/2" Sears Angle Grinders
        1 - 4" Makita Angle Grinder
        2 - IR Die Grinders
        All of which my wife says will be a "he$$ of a garage sale"

        Comment


        • #5
          I would bet that its Chinese tunsten. There are alot of companies, big and small, that peddle low quality tungsten. If you are not buying GTC brand (formally Osram Sylvania) then you are most likely buying low quality tungsten.

          I service a factory in China that specializes in the tig welding. Even they don't buy Chinese tungsten. They import GTC from the US.

          Comment


          • #6
            I suspect the tungsten isnt large enough if its forming a ball, I have a dynasty 200dx and it will form a ball if I get close to the current limits of the tungsten size.
            I sure didnt know the Chinese made tungsten as well, I know all about the quality of their stainless fittings!
            mike sr

            Comment


            • #7
              Originally posted by GTA/SPEC View Post
              I would bet that its Chinese tunsten. There are alot of companies, big and small, that peddle low quality tungsten. If you are not buying GTC brand (formally Osram Sylvania) then you are most likely buying low quality tungsten.

              I service a factory in China that specializes in the tig welding. Even they don't buy Chinese tungsten. They import GTC from the US.

              There may be hope for us yet - for a while there I thought the only thing the US was exporting was jobs

              Comment


              • #8
                use green 100% tungsten & your problems will disappear...

                Comment


                • #9
                  Originally posted by popspipes View Post
                  I suspect the tungsten isnt large enough if its forming a ball, I have a dynasty 200dx and it will form a ball if I get close to the current limits of the tungsten size.
                  I sure didnt know the Chinese made tungsten as well, I know all about the quality of their stainless fittings!
                  Three out of the four packages of tungsten I still have in the pacs say made in China and the forth, the one I am having problems with, doesn't say where it is made. Got me thinking about where most is coming from so started looking at the internet and it seems that you can't find out where it is coming from. Even the printed information from several companies I have dealt with doesn't say where the tungsten is from.

                  Originally posted by thunder71 View Post
                  use green 100% tungsten & your problems will disappear...
                  I'm sure you have heard this before but the dynasty 350 book says use the orange tungsten. That is the only one I have tried with the exception of a tri-mix sample.


                  Dynasty 350 - My New Baby
                  Millermatic 210 Mig with Spoolmate 3035
                  Miller Thunderbolt XL 225/150 AC/DC Stick Welder
                  Miller Specturm 625 Plasma Cutter
                  Speedglas 9100 auto dark helmet
                  Jackson auto dark helmet
                  18.5 CFM Eagle Compressor
                  Oxy/Act
                  Horizontal Band Saw
                  Dewalt 14" Chop Saw
                  7 1/2 Dewalt Angle Grinder
                  4 - 4 1/2" Sears Angle Grinders
                  1 - 4" Makita Angle Grinder
                  2 - IR Die Grinders
                  All of which my wife says will be a "he$$ of a garage sale"

                  Comment


                  • #10
                    i dont think cerated hold together as good as say lathanated when you get to the upper amperage for that particular size.
                    they are good low down and mid range.

                    wouldnt even try green in an inverter.....no need

                    Red would be worth a try if you cant get lathanated.

                    you could also cut down on the EP (cleaning) as that would go easier on your tung.

                    I generally have 20% cleaning time, which works just fine. If i go down to 10
                    5 cleaning i sometimes see a difference as i dont use much acetone and minimal wire brush.
                    Last edited by gordfraser; 08-02-2009, 09:01 AM.

                    Comment


                    • #11
                      Havnt seen anyone that thought they got bad tungsten's shouting about it yet, so id try looking elsewhere for the cure for now.

                      Wow. cant believe how much more expensive the USA tungs are!

                      Comment


                      • #12
                        Originally posted by thunder71 View Post
                        use green 100% tungsten & your problems will disappear...
                        I hope you're joking..
                        Millermatic Passport Plus
                        Millermatic 200

                        Millermatic 350P with Python
                        XMT 304 /w S-64 feeder and 12VS
                        Dynasty 300 DX
                        Thermal Arc 400 MST
                        Victor O/A
                        Premier Power Welder for my trail junk.

                        Comment


                        • #13
                          "Made In The USA"

                          Originally posted by GTA/SPEC View Post
                          I would bet that its Chinese tunsten. There are alot of companies, big and small, that peddle low quality tungsten. If you are not buying GTC brand (formally Osram Sylvania) then you are most likely buying low quality tungsten.

                          I service a factory in China that specializes in the tig welding. Even they don't buy Chinese tungsten. They import GTC from the US.
                          Sylvania are the ONLY tungstens made in AMERICA

                          Arc-Zone.com has an entire inventory

                          Dave
                          "Bonne journe'e mes amis"

                          Comment


                          • #14
                            crawler,

                            The bad thing about it, he's not (joking I mean).

                            Next thing you know, he'll be telling everyone that the Dynasty 350 is just a lot of smoke and mirrors and that a 330 A/BP welds much better.

                            I personally don't give a **** what tungsten he, himself chooses to use. Just wish he'd stop putting out bad info for the new guys who don't really know any difference.
                            Syncrowave 250 DX Tigrunner
                            Dynasty 200 DX
                            Miller XMT 304 w/714D Feeder & Optima Control
                            Miller MM 251 w/Q300 & 30A SG
                            Hobart HH187
                            Dialarc 250 AC/DC
                            Hypertherm PM 600 & 1250
                            Wilton 7"x12" bandsaw
                            PC Dry Cut Saw, Dewalt Chop Saw
                            Milwaukee 8" Metal Cut Saw, Milwaukee Portaband.
                            Thermco and Smith (2) Gas Mixers
                            More grinders than hands

                            Comment


                            • #15
                              Thanks for the info. I will lower the ep and see if that helps. Also, I will lower the amps as I am on the high side of a 1/16" tungsten. As I have said before, being new to tig, it is more than a probability that it is operator error. Thanks for putting up with my stupid questions.


                              Dynasty 350 - My New Baby
                              Millermatic 210 Mig with Spoolmate 3035
                              Miller Thunderbolt XL 225/150 AC/DC Stick Welder
                              Miller Specturm 625 Plasma Cutter
                              Speedglas 9100 auto dark helmet
                              Jackson auto dark helmet
                              18.5 CFM Eagle Compressor
                              Oxy/Act
                              Horizontal Band Saw
                              Dewalt 14" Chop Saw
                              7 1/2 Dewalt Angle Grinder
                              4 - 4 1/2" Sears Angle Grinders
                              1 - 4" Makita Angle Grinder
                              2 - IR Die Grinders
                              All of which my wife says will be a "he$$ of a garage sale"

                              Comment

                              Working...
                              X