ALUM WELD BEVEL, 60 OR 45 DEGREES
ALUM WELD BEVEL, 60 OR 45 DEGREES
(OP)
Hello
The AWS D1.2 calls out 60 degree bevels (either single or double V) on most or all of the Recommended CJP Joints in the back of the spec. And this is how we qualified our welds for the Qualifictaion and procedure tests for AWS.
But we can prep the metal much faster by doing a 45 deg weld prep on a band saw, which can only go to 45 degree. My question is: Does anyone know how necessary the 60 degree weld prep angle is vs the 45 degree weld prep? Or would I need to go thru all the AWS testing again, which managment will not want to do. We only have to have a CWI inspect some of our jobs, and on those jobs we stick to the 60 degree welds which have a qualified WPS. But on Jobs not requiring the inspections the shop will often do 45 degree weld preps and those units have passed structural testing. Although I can not say the individual welds would pass the AWS weld bend tests.
Thank you
The AWS D1.2 calls out 60 degree bevels (either single or double V) on most or all of the Recommended CJP Joints in the back of the spec. And this is how we qualified our welds for the Qualifictaion and procedure tests for AWS.
But we can prep the metal much faster by doing a 45 deg weld prep on a band saw, which can only go to 45 degree. My question is: Does anyone know how necessary the 60 degree weld prep angle is vs the 45 degree weld prep? Or would I need to go thru all the AWS testing again, which managment will not want to do. We only have to have a CWI inspect some of our jobs, and on those jobs we stick to the 60 degree welds which have a qualified WPS. But on Jobs not requiring the inspections the shop will often do 45 degree weld preps and those units have passed structural testing. Although I can not say the individual welds would pass the AWS weld bend tests.
Thank you
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RE: ALUM WELD BEVEL, 60 OR 45 DEGREES
RE: ALUM WELD BEVEL, 60 OR 45 DEGREES
As far as AWS, if the aluminum quals are similar to steel, I think you may have to requal with a "tighter" bevel. I think I recall that you can open the bevel but not close it up. Hence, a good reason to run your quals at the "worst" limits on bevel, root, amps, volts, etc, so you can have the most flexibility in writing your WPS's. But the alum code may be different.
RE: ALUM WELD BEVEL, 60 OR 45 DEGREES
It would be very difficult to get the company to do a requal on a new PQR/WPS at this time. So getting them to do the 60 deg bevel should get us closer to AWS procedures.
TKS
Tim