Saturday, July 10, 2010

Re: [MW:5930] PQR (QW-204b)

Dear All,
 
Reply given by Mr. Jignesh Makwana is quite wrong.
 
As per QW-451.1 Deposited weld metal thk qualification range should be 2t only.
 
wherer as t = Deposited weld metal thk.
 
Regards,
Bhavesh Patel

On Sat, Jul 10, 2010 at 9:39 AM, manpreet <manpreetsin88@rediffmail.com> wrote:
Hi


Accoding to QW 200.4:-
A combination of processes can be used for PQR, if THK of test coupon is at least 13 mm.

Since thk mentioned is more than 13mm So it is qualified for Multiprocess welding.

Max. deposited thickness qualified for each process shall be 2*t.

So your ranges are qualified & can be recorded in WPS.


Regards
Manpreet Singh
Ass. Welding Engineer
Spiecapag
















Hi,



Have the following question regarding weld metal deposition
on PQR with combined GTAW & MMAW processes.

Have recorded both GTAW = 3.5mm & MMAW = 9.8mm onto PQR
(QW-204b) but unsure of the ranges qualified

for both and should they be recorded on associated WPS.



Thanks

QA/QC













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