EPIC Aadhaar Seeding - How to Seeding the EPIC With Aadhaar - Duration: 4:52. SAMPATH K 6,600 views
In some instances, consider adding helium to the shielding gas mixture for its ability to provide a hotter, more penetrating arc on thicker sections. For the GMAW process, a mixture of 75 percent helium balanced with 25 percent argon is a good option.inally, consider purchasing low-dew-point shielding gases as protection against porosity. Follow all recommended welding procedures for shielding gas flow rates and purge cycles. As with any welding process on any material, following some basic guidelines is critical to obtaining the best results.
Gas Selection. 1  A 75 percent argon/25 percent CO2 blend (also called 75/25 or C25) works as the best all purpose shielding gas for carbon steel. 2  100 percent CO2 provides deeper penetration, but also increases spatter and the bead will be rougher than with 75/25.