GMAW Prequalified positions for WPS's

Date 08-14-2010 17:14

I am trying to develop a WPS based upon a prequalified joint in D1.1:2000, Fig 3.4, Joint B-U2a-GF. The book states that this is good for all positions except Horizontal. I will be doing horizontal welding in my shop. So I will need to develop a PQR. If I do a PQR, can I have just one WPS that includes the infomation for the B-U2a-GF and the PQR for the horizotal position or does this need to be two different WPS's?

By motgar

Date 08-16-2010 20:07

welderla,

Look into joint designation B-U4a-GF. It is prequalified.

It is also used as the optional test plate for welder qualification, in the horizontal position.

Figure 4.30 and Figure 4.32 in AWS D1.1:2006

Just an idea, hope that helps.

By 803056

Date 08-14-2010 19:01

If you are working to D1.1, you can combine prequalified and qualified WPSs.

Best regards - Al

By welderla (*)

Date 08-14-2010 19:07

Where?

By 803056

Date 08-14-2010 20:13

Clause 3.6.1

Al

By welderla (*)

Date 08-14-2010 20:30

Al, I think you missed what I was trying to say. That joint doesn't include horizontal. Inorder to have a WPS that includes hortizontal I had to do a PQR separate. Can I put the details of that PQR on the WPS for the prequilfied joint?

By bozaktwo1 (***)

Date 08-14-2010 22:10

If you want to borrow joint details from a joint prequalified in D1.1, there's nothing to stop you as long as the PQR is performed to the requirements of your controlling specification.