Use 100% CO2 shielding gas with proper heater and gas flow rate.
Prem Nautiyal
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-------- Original message --------
From: 'MAGHROUD Moussa' via Materials & Welding <materials-welding@googlegroups.com>
Date: 03/10/2016 2:15 p.m. (GMT+05:30)
To: materials-welding@googlegroups.com
Subject: [MW:25476] GMAW for CS
Dear experts
I am trying to qualify a PQR using GMAW applied on a plate spec A36,10 mm thick, ER 70S6 1.2 mm, position 3G, progression downhill and Argon pure as shielding gas. But after RT shooting we find porosity throughout the joint.
Please anyone can help how to qualify this weld.
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