Blaster
To touch on something brought up earlier in this post in regard to single pass.
I used to have our new welders do the test in one pass, but the problem was when it came time for them to put in a multi-pass fillet, they would get rejected all the time becasue they didn't know how to stack the beads.
The formen asked me to change to weld test from a single pass to a multi pass, this way we could confirm they could make acceptable multi pass welds, and still once its cut and macroetched I would know it they could or could not pass the fusion portion of the test, along with the bend test. It made sence to me so I changed it and it still meets code.
So what I do I stay with the welder during the test for a number of reasons, they are;
to confirm the start and stop is in the middle of the test piece,
that the first pass is acceptable
then I confrim that the other passes are acceptable as well normally I end up w/ a 3/8- 7/16 fillet. Let's face it this test does not take a long time to weld.
Luckily my jig and porta power bends the test plates nicely.
Hope this helps
Chris
By Lawrence 
Date 12-17-2009 21:25
Edited 12-17-2009 21:29
I see the reasoning EEEK
I would still like to see an actual fillet *break* so that the entire root can be inspected including the restart.. Which prolly isn't going to happen when a multi-pass weld folds over on itself.
In my perfect little world it would be nice to see a single pass fillet break... (I think 5/16 is about max for GMAW in D1 anyhow) and then why not do another fillet with a multi pass weld that is simply visually inspected (so you can see if they can stack).. Not that big an investment in time or materials, but maybe a better evaluating tool when you put the two together.
When you test the multi-pass welds with your power tool, do they fold over or break at the root? If they do break I'd like to know more about how you do that. Maybe my 49 ton metal muncher could be rigged a similar way. (share pix ?)
EEK
yeah post a picture, although now days that sledgehammer is good exercise for me. LoL
Marshall
Yeah, you bend it so the plates go flat against each other, basically prying the unwelded side open exposing the root pass. The nice thing about doing it this way is it doesn't disrupt any slag that may be caught in the root. This makes it easier to evaluate how much lack of fusion there may be to be able to accept it or not. I'm testing guys to FCAW duel shielded, so if they don't know what they are doing it will look like pencil lead all along the entire joint, becasue they didn't fuse the material.
Of course don't forget this is after 1" was already cut off each end and one side was macroetched. So my 8" test coupon is now 6" long.
I would think with a sledge hammer that it could be pretty brutal on both the coupon and part, just where a hrad hat and gloves. I'll try to take a few pics.
Chris
eekpod
It depends on the welder.LoL
It mainly depends on the day and how well the aim. LoL
Marshall
By eekpod 
Date 12-18-2009 18:50
Edited 12-18-2009 18:53
wow, could I have made those pics any bigger?? LOL
I'm making myself dizzy just looking at them, sorry about that guys but you get the idea.
lesson learned, be careful with the "embed" button.
The "attached" picture is taken BEFORE the 1" is cut off of both ends. I didn't have a coupon that wasn't bent already and cut. I wasn't going to waste my time cutting off 1" on either end just to take the picure and throw it out, but you should get the idea. Thats what the hash mark area is showing, pretend its not there.
Chris
eekpod
Looks good to me is the rod oven part of the jig LoL
Thanks for the pictures I might have to devise me something like it, never thought about using anything other than my 20# sledge before now.
Marshall
