Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums
 
Miller Welding Discussion Forums - Powered by vBulletin

Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 22
  1. #11
    Join Date
    Aug 2006
    Location
    near rochester NY
    Posts
    9,881

    Default

    aluminum can be a pain thats no dought, its almost like the 2 pices are opiset magnets. as it heats up to puddle they repell each other rather than runnig togather like steel dose.
    dont know if it will help but i found that just as it reaches the melt point and starts to repell hit it with some filler and it will join, dont try to wait it out for them to join into one puddle all by them selves, its just not going to happen also a fresh hit with the SS wire brush just befor you start goes a long way to a good start. lots of waisted scraps ahead for ya but hang in ther you will get it in time.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
    summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
    JAMES

  2. #12
    Join Date
    Dec 2006
    Location
    Bertram TX
    Posts
    157

    Default Aluminum TIG

    If you're ever in the Killeen area stop by the Central Texas College hangars at Skylark airport. We have the same Dialarc 250HF with a cooler and I've got some scrap aluminum. We'll weld a couple beads!
    Matt Adams A&P, IA
    Trailblazer 302
    Dialarc HF

  3. #13
    Join Date
    Mar 2007
    Posts
    14

    Default

    Quote Originally Posted by MNellis View Post
    The welder is a Dialarc 250 HF but I haven't run it real hard at this poin. I tried my first shot at AL this evening and made a real mess of some scrap but at least the cooler worked well. I have to weld an aluminum bracket but there is no way I can actually produce something acceptable at this point.
    thats the same tig I have and instead of a coil mine goes into a 5-10 gallon fluid holding tank that cools the fluid down has been working great for some 15year on my used machine. Ed ke6bnl

  4. #14
    Join Date
    Mar 2007
    Location
    ****inson ND
    Posts
    557

    Talking

    Those dialarc HF 250's are nice machines. I havent ran TIG on them yet but I have a **** of a lot of time on them with stick. They definitly take a beating thats for sure. Has the contactor on it had any problems though? I had problems on the two that I ran, one contactor had to be replaced and the other was prety iffy. Other than that they were exelent machines

  5. #15
    Join Date
    Nov 2003
    Posts
    3,210

    Default

    bump.....

  6. #16
    Join Date
    Feb 2010
    Posts
    27

    Default

    would the cooling coil out of an air conditioner work too?

  7. #17
    Join Date
    May 2009
    Location
    Central North Carolina
    Posts
    148

    Default

    I used a new transmission oil cooler purchased from Advance Auto Parts and 2
    muffin fans, with a Procon pump and a 2 gallon stainless reservoir from a
    carbonator. I run a 50/50 distilled water and RV antifreeze mix in it and it's going on 2 years now, with no problems so far. My welder is a white face DialArc HF and I do a lot of aluminum with it, so I tend to run it at the higher currents a lot.

    You should not run higher than about 60 psi or you will have line rupture
    problems. Mine is set for 50 psi.

    Here is the link (with pictures)

    http://www.millerwelds.com/resources...p/t-18880.html.



    Charley
    ______________________________
    Miller MM252
    Miller Bobcat 225NT
    Miller DialArc HF & DIY Cooler
    2 Miller Digital Elite and 3 Fixed Shade Helmets
    2 O/A torch sets
    DeWalt 18 volt 1/2" Driver/Drill
    DeWalt 18 volt 6 1/2" Metal Saw
    DeWalt Porta Band & SWAG Offroad V3 Table
    Milwaukee 8" Dry Cut Saw
    Milwaukee 14" Dry Cut Chop Saw / Delta Stand
    Milwaukee 9" Grinder
    2 Milwaukee 4 1/2" Grinders
    Milwaukee Hole Hawg 1/2" Drill
    Wallace 5 Ton Gantry
    Too many hand tools

  8. #18
    Join Date
    Sep 2005
    Location
    Findlay, OH
    Posts
    108

    Default

    I have tons of components to build a nice TIG cooler - Procon pump w/motor, heat exchanger, 8" muffin fan, S/S Reservoir, nice flow gauge, flow switch, temperature and pressure gauges, fittings, LOTS of relays, timers and electrical supplies.

    The original plan was to build a cooler for my Dynasty 200. I ended up buying a new Dynasty 350 with the cart and CoolMate unit. My cooler would have been better, but Miller's works fine.

    Anyway, if anyone is interested in the stuff let me know. I probably have $600-800 of cooler components sitting in the corner of the shop.

  9. #19
    Join Date
    May 2009
    Location
    Central North Carolina
    Posts
    148

    Default

    That's a bit expensive for a DIY cooler. My cooler only cost me about $200 out of
    pocket. Of course, I don't have flow indicators, but I can watch the flow through the clear tubing.

    The Carbonator was $100 and I used the 2 gal stainless tank as well as the motor
    and pump. The oil cooler coil was about $40 from Advance Auto. The galv sheet
    metal, hose, and the pipe fittings from Lowes amounted to about $50. I already had
    the muffin fans. A gallon of RV antifreeze and a gallon of distilled water completed
    the purchases.

    Charley
    ______________________________
    Miller MM252
    Miller Bobcat 225NT
    Miller DialArc HF & DIY Cooler
    2 Miller Digital Elite and 3 Fixed Shade Helmets
    2 O/A torch sets
    DeWalt 18 volt 1/2" Driver/Drill
    DeWalt 18 volt 6 1/2" Metal Saw
    DeWalt Porta Band & SWAG Offroad V3 Table
    Milwaukee 8" Dry Cut Saw
    Milwaukee 14" Dry Cut Chop Saw / Delta Stand
    Milwaukee 9" Grinder
    2 Milwaukee 4 1/2" Grinders
    Milwaukee Hole Hawg 1/2" Drill
    Wallace 5 Ton Gantry
    Too many hand tools

  10. #20
    Join Date
    Sep 2005
    Location
    Findlay, OH
    Posts
    108

    Default

    Quote Originally Posted by CharleyL View Post
    That's a bit expensive for a DIY cooler. My cooler only cost me about $200 out of
    pocket. Of course, I don't have flow indicators, but I can watch the flow through the clear tubing.
    My plans called for the pump to be activated only when the pedal is depressed, and I have an adjustable time delay relay that would keep the pump running for a minute or so after the pedal is released.

    I have a temperature switch to control the fan, so it only comes on when the coolant starts to get hot. Also controlled by a time delay relay.

    A beeper alarm was going to be wired into the pressure and flow switch, to alert me in case there was a blockage or some issue with the pump.

    I have lighted gauges for the front panel to indicate coolant temperature and pressure, in addition to the flow meter.

    And the list goes on... This was NOT going to be your typical home-built cooler with a Tupperware tank and short sections of garden hose connecting everything.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 82

Welding Projects

Special Offers: See the latest Miller deals and promotions.