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 25
  1. #11
    Join Date
    Sep 2006
    Location
    Appleton ,Wisconsin
    Posts
    57

    Default

    Try cleaning the area that you are welding with scotchbrite (no chemicals) before welding. 4130 tubing typically has a thin mill-scale on it. If you take that off you will notice a huge difference in your finished bead cosmetics and the way that it welds.

    Good luck man

    Brad

  2. #12
    Join Date
    Feb 2007
    Location
    now in Orlando!!!!
    Posts
    559

    Default

    Once saw the prettiest tubing at Rausch's shop, asked the guy there what they did to it, and they said it was precision ground....so, enough said, clean that coating/scale/earl/whatever away from the site, and keep the hydrocarbons [oils] off before hand. Hope this helps,Paul
    More Spark Today Please

  3. #13
    Join Date
    Apr 2008
    Location
    Rushville IN
    Posts
    50

    Default Puddle

    I always drilled the vent hole inside of the tube, That way the whole cage was vented and there were no holes to go back and fill.

  4. #14
    Join Date
    Jan 2007
    Location
    Pensylvania
    Posts
    16

    Default

    When tig welding pipe in the field we always purged the pipes with shielding gas so when the heated gases inside would be forced out during welding it would be shielding gas not air (oxygen and nitrogen).
    Just a thought.
    Spar C

  5. #15
    Join Date
    Jan 2008
    Location
    VA
    Posts
    298

    Default

    Heat a section of the tube away from the vent hole with a heat gun or torch. Almost too hot to touch is good enough. Get ready to close up the vent hole and drop a wet rag on the heated section of tub. This will make air want to go in rather than coming out of the vent hole. sometimes I skip the vent hole and stop the weld and let things cool off some. I find that can close up by ether welding the last bit fast or doing the heat and wet rag trick no vent hole drilled.
    Weekend wannab racer with some welders.

  6. #16
    Join Date
    May 2008
    Posts
    2

    Default brake clean is the problem

    I had the same exact problem when I was using brake clean to clean oil off of new steel. I discovered when I used mineral spirits or a water soluble cleaner the problem went away. One day I was out of mineral spirits and I used brake clean and the problem came back. Brake clean gets into the steel and any welding process will cause the expanding gases to blow out the weld puddle.
    Hope this helps.

    Best regards,
    Syncrowave 200
    Millermatic 210 3035 Spool gun
    Millermatic Passport
    Blue Star 185
    Thermal Dynamics Cutmaster 38

  7. #17
    Join Date
    Mar 2006
    Location
    Queens NY
    Posts
    1,547

    Default

    I would think mineral spirits would cause the problem, since its a petroleum product and leaves a residue. Now that you mention it, i think i had a problem with brake cleaner causing contamination too. I now use 100% isopropyl alcohol or in rare cases acetone and i have no more issues.
    Dynasty 200 DX
    Millermatic 175
    Spectrum 375
    All kinds of Smith OA gear

  8. #18
    Join Date
    Jun 2007
    Location
    San Jose,CA
    Posts
    43

    Default

    Definitely skip the noxious chemicals, a little emery cloth will go a long way in cleaning the tubing. As for plugging the vent holes, you have a few options... To keep the environment out, you can use a rubber plug or a pop rivet.

    John
    John


    Millermatic DVI
    Millermatic 375 xtreme
    And a brand new Syncro 200!!!

  9. #19
    Join Date
    Dec 2007
    Location
    Oklahoma
    Posts
    695

    Smile

    Quote Originally Posted by Laiky View Post
    I would think mineral spirits would cause the problem, since its a petroleum product and leaves a residue. Now that you mention it, i think i had a problem with brake cleaner causing contamination too. I now use 100% isopropyl alcohol or in rare cases acetone and i have no more issues.
    Isn't isopropyl alcohol 30% water??

    Griff

  10. #20
    Join Date
    Dec 2005
    Location
    wisconsin
    Posts
    836

    Default

    Quote Originally Posted by griff01 View Post
    Isn't isopropyl alcohol 30% water??

    Griff
    Griff,
    Depends on the solution. I use either 70 or 90 percent for my cleaning, so it would be either 30 or 10 percent water. Stay away from heavy hydrocarbon cleaners, and the light ones arent good for your health. Isopropyl is just fine for 4130 and mild steel, used and accepted byt aircraft guys after years of use and testing on steel, stainless, aluminum, but NOT magnesium. Hydrocarbon cleaners have been linked to hydrogen embrittlement of 4130 when using the Tig, Mig or Arc process.
    -Aaron
    "Better Metalworking Through Research"

    Miller Dynasty 300DX
    Miller Dynasty 200DX
    Miller Spectrum 375 extreme
    Miller Millermatic Passport

    Miller Spot Welder
    Motor-Guard stud welder

    Smith, Meco, Oxweld , Cronatron, Harris, Victor, National, Prest-o-weld, Prest-o-lite, Marquette, Century Aircraft, Craftsman, Goss, Uniweld, Purox, Linde, Eutectic, and Dillon welding torches from 1909 to Present. (58 total)

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: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Non-static method PhpQuickProfiler::getMicroTime() should not be called statically in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/pqp/classes/Console.php on line 77

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/www.millerwelds.com/web/content/lib/footer.inc.php on line 74

Welding Projects

Special Offers: See the latest Miller deals and promotions.