Voltage for GTAW electrode 2.4mm and 3.2mm

[Abuhanip bin Abdul]

Dear sir.

               

                What is the voltage range qualified for the GTAW electrode 2.4mm with an amp range 120-175 and 3.2mm with an amp range 150-220?

I can’t find it in the standard code. I need this for my pWPS..

 

 

 

[mus....@yahoo.com]

You can have the voltage range by doing mock up test. Then record the voltage reading[min,max] during the run. Make sure your welding machine ang other equipment in place.

Sent by Maxis from my BlackBerry® smartphone

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From: "Abuhanip bin Abdul" <abuh...@labuanship.com>

Sender: material...@googlegroups.com

Date: Thu, 21 Apr 2011 13:48:41 +0800

To: <material...@googlegroups.com>

ReplyTo: material...@googlegroups.com

Subject: [MW:10772] Voltage for GTAW electrode 2.4mm and 3.2mm

Dear sir.

               

                What is the voltage range qualified for the GTAW electrode 2.4mm with an amp range 120-175 and 3.2mm with an amp range 150-220?

I can’t find it in the standard code. I need this for my pWPS..

 

 

 

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[Fitria Rahman]

Do you want to run pqr?
if yes, first of all, please have heat input. Heat input is expressed in the formula; H=60EI/1000S. Where H is heat input (kJ/in or kJ/mm), E is arc voltage (volts), I is current (amps), S is travel speed (in/min or mm/min).
if you want to develop a procedure (WPS), just write what pqr said.

2011/4/22 <mus....@yahoo.com>

[Mohammed Rafiuddin]

Dear Rahman, Theres no rule to select the voltage.You can check the electrode manufacturers data sheet for the specific brand / size. Dear experts plz correct me if I am wrong --- On Thu, 21/4/11, Fitria Rahman <t.chi...@gmail.com> wrote:

[Maulik Thakkar]

Dear,

 

Request you to find out SFA 5.12 PAGE NO. 312 Table A2 of ASME SEC IX, 2010 ED

 

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[prem nautiyal]

Hi   You can use the well established formulas for Voltage calculation as follows:   GTAW: V = 10 + 0.04 I SMAW: V = 20 + 0.04 I GMAW: V = 14 + 0.05 I   where V = Voltage, I = Current   Regards   Prem S Nautiyal Mobile: +91 - 9004063879 / 9769316004 --- On Fri, 6/24/11, Maulik Thakkar <mlkth...@gmail.com> wrote:

From: Maulik Thakkar <mlkth...@gmail.com> Subject: Re: [MW:11460] Voltage for GTAW electrode 2.4mm and 3.2mm To: material...@googlegroups.com