Re: [MW:20359] Combination of welding procedures

Mr. John,

Greetings !

Pleasure to have you on this group and all of your answers are quite convincing and pretty clear to understand. 

Thanks,

Regards

M. Javeed

On Mon, Mar 17, 2014 at 5:18 PM, John Henning <jhenning@deltak.com> wrote:

I presume that you asking about base meal thickness.

 

While they can be combined, the minimum thickness for the combined procedure is 5mm (assuming you are not going to separate by process).  FCAW cannot be used on any thickness below 5mm, therefore if you use a single value for minimum thickness on the WPS, the limiting minimum thickness  is that for the FCAW.  If all other essential variables the same for GTAW, you could use the two PQRs for a single WPS qualified from 1.5mm to 200mm.  And a second WPS for FCAW qualified 5mm to 200mm.  To bring the qualified FCAW thickness you need a PQR qualified on thickness < 10mm.

 

John A. Henning

Welding & Materials

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Dhamodaran
Sent: Sunday, March 16, 2014 4:06 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:20342] Combination of welding procedures

 

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  5-200mm.

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

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