I'd say I have done it about 4 times over the years. I did 1" plate back in "90 when I got my first certs in Indiana. Since then I have done it maybe 3 times in 3/8" plate. Just to show students how it is done.
It works fine as long as you are patient.
I don't understand why you think it is impossible.
"Ernie Leimkuhler" wrote
Some people deny the existence of the Grand Canyon and the Statue of Liberty because they have never personally seen them ..........
Steve
"Ernie Leimkuhler" wrote in message news:240220120425419522% snipped-for-privacy@stagesmith.com...
Didn't bend any coupons eih? Just show and tell? ;>)}
"Ernie Leimkuhler" wrote in message news:240220120417400702% snipped-for-privacy@stagesmith.com...
And you flaunt your "CWI" papers like you know it all? You don't even know when where and how a backing bar is to be used. You can't always get to the back side so that root pass better be good! You sound like the jon banquer of sejw. ;>)} Your "CWI" is hereby revoked....
Of course the coupons were bent. What is the point of doing the weld in the first place? As I said I got a cert in hard wire MIG on 1" plate in '90. That required a 3G and 4G that both passed bend tests.
Again I don't understand where all this hostility comes from. I have even run an overhead 1" plate using spray mode with solid wire. Tricky, but it can be done, just creates a lot more distortion.
plink. (sound of little-bitty dipshit hitting bottom of the bozo bin)
As the OP, I would like to thank Ernie for all the info he has provided. I will let you know how things go in the near future.
Regarding Phil, I will run your suggestions through the proper channels. One flush should do it.
Stuart
And so are you. Say goodnight, Gracie.
Steve
I would hope that be a Phil plink, and not Ernie.
Steve
"Standard AWS D1.1 structural weld procedures state you weld a single sided V-groove weld into a backing bar, then carbon-arc gouge the backing bar off, scarf out the root and weld from the back side. For testing we just skip the last part so we can examine the root pass."
This one statement proves my point. Ernie is a schoolyard welder. Never worked in a heavy metal fabricating environment. The code does not require this, there may be no access to do it and for testing it is total bullshit. How can you inspect the root pass if you gouged it out? I rest my case. Phil k.
"Gunner Asch" > Mr Kangas has sullied my screen one time too many.
Oh, btw, I don't give a damn about being kill filed by mob rule. I'm sticking to my opinion no matter what you do. Tar and feather, waterboard, tied to a tree in the swamp in June, go ahead have at it but I think His Majesty is a poseur. He has an ethical responsibilty as a "CWI" to understand weld codes and their application. He failed.
Regarding with/without backing and weld without backing qualifies weld with backing...
Recent "penny drops" moment for me I'll share.
Many component welds and all fillet welds have "backing" from the other component of the weldment.
Previously I was visualising it only as meaning when you come along with a discrete additional backing-bar.
Often you have to qualify a fillet weld with a groove-butt so you can do mechanical tests on the weld to prove properties (look at a fillet and work out how you are going to extract pieces for tensile, Charpy, etc!). Hence "without backing qualifies with-backing" goes along with "butt qualifies fillet" in enabling manageable Procedure Qualification tests proving properties.
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