Re: [MW:26246] Shielding gas for GMAW pulsed welding-Carbon Steel

As argon increase, %of penetration will come down and may get into porosity .  Try with 85+15 with current of >250amps. spatter is inevitable in this process, u can reduce by another option with GMAW-P. If u work in Spray mode, spatter stiking into base metal will be less due to its sizes

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Tue, Mar 21, 2017 at 7:12 PM, Prasad Rao <prasadrao31@gmail.com> wrote:

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Try for 98% argon and 2% co2

On Tue, Mar 21, 2017 at 12:56 PM, Aby Jose <abycscec@gmail.com> wrote:

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Dear all,

What shielding gas should be used for the pulsed GMAW welding of carbon steel? When trying with 80%Ar+20%CO2 mixture I am getting a lot of spatters. The welding used is Automatic welding with Robotic machine.

Any recommendations???

Regards,

Aby

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