WPS AND PQR 3

[shippawa]

I was provided with a WPS and a PQR. I was looking them over and found a couple differences and would like a second opinion on it.
Page 1 of the WPS and page one of the PQR, under QW-402, does it matter that the thickness is different, the root spacing is also different?
On WPS page 1 still, under QW-405 it says all under positions, but on the PQR under position it says VERTICAL 3G, that is wrong?

If you find any other mistake, difference or discrepancy please let me know.
thanks in advance for all your help.

 

[metengr]

Open your copy of Section IX and review essential welding variables for the stated processes.

 

[DekDee]

Agree 100% with metengr.
If you do not understand the basics of ASME IX you should not be reviewing documents.
Regards,
Shane

 

[shippawa]

what?! Did you guys read my post? I already read and reviewed the whole thing. I fully understand it. I was looking for a second opinion. Point me in the right direction or something like that. Thanks.

 

[A clark]

Did you compare your questions to the essential and non essential variables listed in section IX? ALL of your comments concern non essential variables.

 

[david339933]

You obviously DO NOT understand it......the questions you are asking are as basic as it gets.....

 

[shippawa]

yes, it is a non essential. its 405.1. All I want to know is if 3G supersedes 4G? He tested 3G and is claiming ALL in the WPS, and I don't think it applies to 4G. so, if someone does the job and welds overhead and an accident happens, its a problem.

 

[DekDee]

Shippawa,
Read your post fine.
Your questions show that you do not understand the code and you want someone to do your work for you.
If you have the knowledge and experience to allow you to review quality documentation then you do not come on an internet forum to ask for a second opinion.
If you had read and understood the Sections of ASME IX you have quoted you would realise there is nothing wrong with the issues you are concerned about.

Just as an aside, IMHO the WPS is useless - waste of paper.
Regards,
Shane

 

[A clark]

Position is an essential variable only for the welder, it has no bearing on the procedure.

 

[weldstan]

Position is not an essential variable.

 

[david339933]

There are concerns with this WPS....none of which you have brought up.

WPS states base metal qualified 3/16" - unlimited. How is it unlimited?
Shielding gas used for PQR was 75/25, but WPS states 100% CO2.

 

[DekDee]

David,
There are that many issues with both the WPS and PQR I couldn't be bothered commenting,
Cheers,
Shane

 

[david339933]

Agreed....just trying to get the point across....OP claims to fully understand, but raises non-issues while oblivious to the real issues.

 

[shippawa]

you are 100% right david339933. I have also noticed these. That's what I am talking about ! thank YOU !
so, do I reject this altogether? Request new ones?

 

[david339933]

As DekDee eloquently put it.....waste of paper.

 

[shippawa]

thanks for all the replies

 

[A clark]

One final comment....SA-36 Min UTS= 58000. .95*58000= 55100. All tensile tests failed.Startover

 

[weldstan]

Also no certifying signature on PQR. Was this document actually submitted by a Manufacturer? I assume that the Manufacturer's name was deleted by the OP. I haven't reviewed a WPS/PQR as poor as this one since the mid 1970's, although a few came close after 2010. It appears that history is repeating itself once again.

 

[DekDee]

Shippawa,
I am getting soft in my old age so I will offer you some advice.
The reason we have welding procedures is to ensure "sound weld repeatability".
In plain English that means we provide the welders with minimum and maximum parameters on the WPS so if they stay within those parameters there is a good chance you will get a sound weld over and over again.

The WPS you have provided is a joke and either your contractor doesn't have a clue or they think you (the client) don't.

Giving a WPS to a welder that lists multiple wire diameters, multiple positions and multiple thicknesses is a recipe for disaster.
"Guys, just weld however you want, we have every possibility covered in our one page special WPS" ?????

I have had a brief review and here are some of the major concerns you need to look at:

1 Preheat
2 Material Thickness ( noted by David)
3 Weld Deposit thickness
4 Wire Feed Speed
5 Gas composition (noted by David)
6 Amps / Volts / Travel Speed
7 Tensile results (noted by A.Clark)
8 GMAW Transfer mode ?
9 PQR not listed on WPS ?

Regards,
Shane