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.
Ventilation. The primary control for welding/cutting fumes and toxic gases is appropriate ventilation. Adequate ventilation is when airflow is sufficient to control worker exposure to hazardous welding fumes and gases and exposure limits are not exceeded. OSHA Permissible Exposure Limits (PEL) and ACGIH Threshold Limit Values (TLV) are specific to the metals/gases being used in the welding application.