Monday, March 17, 2014

Re: [MW:20363] Combination of welding procedures

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I would suggest to be cautious.
I underline the critical sentence in QW 200.2 (f)


A single WPS may cover several
sets of essential variable ranges as long as a supporting
PQR exists for each essential and, when required,
supplementary essential variable [e.g., a single WPS may
cover a thickness range from 1/16 in. (1.5 mm) through
11/4 in. (32 mm) if PQRs exist for both the 1/16 in.
(1.5 mm) through 3/16 in. (5 mm) and 3/16 in. (5 mm)
through 11/4 in. (32 mm) thickness ranges].

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    Dr. Georgios Dilintas

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Dhamodaran ---16/03/2014 13:03:01---Dear Vishal, Yes it can be combined,Plz. refer QW-200.2(f).

From: Dhamodaran <dhamu_008@yahoo.co.in>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: 16/03/2014 13:03
Subject: Re: [MW:20342] Combination of welding procedures
Sent by: materials-welding@googlegroups.com




Dear Vishal,

Yes it can be combined,Plz. refer QW-200.2(f).

Regards
Dhamodaran


On Sunday, 16 March 2014 11:03 AM, Vishal Chakote <chakotevishal47@gmail.com> wrote:
Combination of welding procedures.

PQR-A:
Welding Process-GTAW
Material - P-No.1 to P-No. 4
Qualn Range - 1.5-10mm

PQR-B:
Welding Process-GTAW+SMAW+FCAW
Material - P-No.1 to P-No. 4
Qualn Range - 5 - 200mm

Can these PQR's be combined for new WPS for
Welding Process - GTAW+FCAW
Material - P-No.1 to P-No. 4
Qualn Range - 1.5-200mm.

The above WPS's are made according to the ASME sec IX.
Give your suggestion.

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