Miller Electric

Welding Discussion Forums

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

Results 1 to 6 of 6
  1. #1

    Default first weld test for a job 3g 4g I am a student any input

    Doing first weld test for a job 3g 4g any input

  2. #2
    Join Date
    Sep 2013
    Chattanooga TN

    Default Weld test

    It has been my experience that on AWS D1.1 structural tests alot of times welders will fit up the coupons with too little gap at the root. This cause's them to trap slag in the root. AWS allows a 1/4" root gap on the standard test coupon made with a backing bar. I have assumed that this is a performance qualification test for all position. Also take care in the direction of grinding when prepping your coupons. The grinding marks should run with the grain of the base metal.
    Good luck on your test.

  3. #3
    Join Date
    Jun 2009
    las vegas


    Make sure you clean everything. Its all in the prep. Dont try and rush it
    Syncrowave 250
    Millermatic 210
    dialarc 250
    spectrum 375x
    trailblazer 302
    Lincoln 135

  4. #4
    Join Date
    Jan 2012
    Coos Bay Oregon

    Default first weld test for a job 3g 4g I am a student any input

    Take your time, follow the procedure exactly. Watch interpass temps, clean, clean, clean, and clean again. Keep bead contour smooth, watch the undercut. Grind out any defect or discontinuity if permitted. First test is always the hardest. Gets easier. Good luck!

  5. #5
    Join Date
    Oct 2009


    You're going to be tested your entire career, don't get all wound up about it. Just think of it as any other weld you're going to do and take your time, do the best you can and the rest will take care of itself.
    Miller syncrowave 200 runner with coolmate 4
    and wp2025 weldcraft torch
    Miller 125c plasma cutter

  6. #6
    Join Date
    Mar 2010


    Don't forget to start with a fresh clear lens in your helmet and carry a spare.

    I'd have a 60 or 80 grit flap disk in my gear bag for prep besides whatever else you use.

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/ on line 79

Welding Projects

Special Offers: See the latest Miller deals and promotions.