Re: [Bulk] [MW:3926] WPS & PQR clarification

In simple words in construction language I can explain WPS / PQR as follows....

there will be Drawing approved for Construction = WPS prepared in initial stage
Construction process as per approved Drawing = Qualifiying PQR and Testing
As built Preparation and using the approved drawing for Proto type items = Modified WPS based on PQR data, used during welding of similar welds in future

Hope I made it clear....

Regards.
C. K. Purohit
Eng-Tech Weld1
Sr Welding Inspector

2009/12/30 mahen dran <cbemahendar@yahoo.com>

Dear Group

 

 Good day,

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Still I have confusion on WPS and PQR terms.

 

1. WPS to be created  first , with respect to  selection of process, electrode and current  etc.

2. PQR is developed  after WPS ,by entering the the actual variation  relevant to the WPS.

 

|Corresponding reference numbers are to be entered  in each other.

 

This is the information  from ASME IX codes.

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But there is a controvercial  statement  from some of our colleques, PQR to be developed first and  Supporiting PQR  reference number is to be entered in the WPS.

 

Please clarify this confusion .

 

 

mahendra

KSA

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