--Dear experts,
One of our clients is using Aluminium MIG wire – ER 4043. Due to unavailability ER 4043, can we give ER 4047?
The client is using 1.2mm wire and sheet thickness =<4mm.
Regards,
For Arc welding company,
Anil Verma
9999200148
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of M.R.Kolahkaj
Sent: Sunday, February 16, 2014 10:23 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:20114] Combination PQR to one WPS
YOU PLEASE CARE ABOUT TWO DIFFERENT PARAMETERS :
2t (FOR DEPOSITED WELD METAL Thk.) &
2T (FOR QUALIFICATION BASE METAL Thk.)
JOHN RESPONSE WAS CORRECT AND YOU WILL FOLLOW THE BASE METAL RANGE OF MINIMUM PART.
REGARDS
~REZA
On 15 February 2014 05:34, Rudolf <rudolf_jude@yahoo.com> wrote:
It is another way of saying I will well dissimilar thickness one within range and another above. And I will weld only up to the range of thickness qualified. Am afraid that's not allowed.
That's my opinion.
Sent from Samsung Mobile
-------- Original message --------
From: Ali Samdani
Date:15/02/2014 13:41 (GMT+08:00)
Subject: Re: [MW:20106] Combination PQR to one WPS
Just in case if I specify in my WPS that I'll use GTAW process for root pass only and SMAW process for fill passes. Keeping in view SMAW process qualification range (up to 14.22 mm), will my WPS qualification range not up to 14.22 mm?
Regards,
On Thu, Feb 13, 2014 at 7:35 PM, John Henning <jhenning@deltak.com> wrote:
The answers you have received are correct but somewhat incomplete.
If you are going to combine PQR’s to make a single WPS, the essential variables for each process must be met – see QW-200.4. Qualified base metal thickness is an essential variable and is determined from QW-451.1 and PQR base metal thickness. From QW-451.1, for your example, each process is limited to base metal thickness range of 1.5mm to 2T. Thus, your GTAW process is limited to a maximum base metal thickness of 2*(5.54mm) or 11.08mm while the SMAW process is qualified for welding base metal thickness up to 14.22mm. The base metal thickness range for the GTAW process is the limiting condition. If a combined WPS is written from these two PQRs, your qualified base metal thickness range is: 1.5mm < T < 11mm. You cannot use the great qualified thickness range for SMAW since GTAW is not qualified to weld any base metal thickness greater than 11mm.
I hope this makes the issue more clear.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of veera raghava kommisetti
Sent: Thursday, February 13, 2014 6:06 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:20090] Combination PQR to one WPS
No
On Thu, Feb 13, 2014 at 10:46 AM, Original Man <aumpiem@gmail.com> wrote:
Back ground: One Welding procedure was qualified with GTAW process with base material thickness 5.54 mm with material API 5L Gr.B And Another was qualified with SMAW process with base material thickness 7.11 mm
Question: May this both PQR support a WPS with GTAW + SMAW process for the base material thickness from 14 mm for the same material and same variables ?
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