×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

(OP)
Is there a clean, simple way to identify what WPS/PQR parameters deviate from AWS D1.1 when submitting to your customer for Engineering approval?

Does a list or reference guide exist, showing all instances where EOR approval IS required, per the code?

This is specific for AWS D1.1 but I am also asking the same question for D1.2 & D1.6.

RE: AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

It is usually addressed in the project specifications.

I would question any Owner that didn't include a provision to review and approve of the WPSs that will be used for production. The reason is simple, many WPSs are simply wrong or incomplete.

Best regards - Al

RE: AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

ntrb28

"Is there a clean, simple way to identify what WPS/PQR parameters deviate from AWS D1.1 when submitting to your customer for Engineering approval?"

If you deviate from the requirements of AWS D1.1 how can your WPS/PQR be qualified in accordance with AWS D1.1 ?

If I have misread your question - my apologies,
Cheers,
DD

RE: AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

(OP)
"If you deviate from the requirements of AWS D1.1 how can your WPS/PQR be qualified in accordance with AWS D1.1 ?"

We have a library of WPS's that are part-specific, and deviate from the code in one area or another (preheat temps, base material groups etc). They had been approved at the time, for that specific part. If I want to use them for another weldment, how do I identify to the Engineer, which parameters deviate from the code?

The notion is that we do not want to write, and qualify, part-specific WPS/PQR going forward- and rather, use existing WPS with the Engineer's approval to do so.

RE: AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

There is no reason to write a part specific WPS unless your Company requires that to be the case.

If you are using a prequalified WPS, Table 3.8 in AWS D1.1 lists the Prequalified WPS variables; If you qualified through destructive testing, Table 4.5 lists the variables that would require requalification.

Having said that, just because a relevant WPS has been approved by your organization, it does not mean it is a valid, compliant welding procedure, as GTAW pointed out. I wish I had a dime for every WPS I reviewed that had been in use for(fill in the blank)years and found to be non-compliant to the relevant code.

RE: AWS D1.1 - Identifying WPS/PQR Parameters that Require EOR Approval

It is interesting to see how "group think" can justify many silly decisions. Just because four or five people sitting around a table think they can circumvent or ignore a contract requirement doesn't make the requirement disappear.

I sit in on many discussions regarding welding issues and how to solve discrepancies between code or contract requirements. The arguments used to justify poor decisions is like listening to four year olds confirming the existence of the Easter Bunny. One wonders how they ever finish their primary education. It is as if they read the words, but they can't or will not comprehend what they read. I call it selective reading and selective comprehension.

"But that's how we've always done it and no one complained before!" I can't begin to count the number of times have I heard that statement at "group think" sessions.

Best regards - Al

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

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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