×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Change the process in Root Pass

Change the process in Root Pass

Change the process in Root Pass

(OP)
One of major point of inspection of the weld specially in one side welding that may effects on the quality of an existing WPS is root pass.
More over there is only One para. in ASME Sec. IX (QW-200.4) that discused about root pass requirement and it seems that changing of root pass is not essential factor for a WPS.
Is it correct to delete or change the process of the root and it's no needs to peform new PQR?.

RE: Change the process in Root Pass

Refer to the construction code. If the welds must be qualed.to SecIX-thats for all of it.

RE: Change the process in Root Pass

I am pretty sure that Sec I and B31.1 have statments regarding the deletion of backing in single welded butt joints but my memory may be incorrect. ASME Sec IX alone has deletion of backing as a non-essential variable for SMAW and GTAW. But as mentioned above, the code of cconstruction may have some other restrictions.

Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com

RE: Change the process in Root Pass

I just went through my B31.1 and I couldn't find what I was talking about above so I may be incorrect.

Its probably worse to remember things incorrectly than to forget them completely :)

Have a good day

Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com

RE: Change the process in Root Pass

Per ASME IX ,the weld process of the root pass shall always be supported by a PQR. This could be a separate PQR for the weldprocess of the root. (E.g. one WPS supported by two PQR's)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

White Paper – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close