Welding till the End!
In this article we have discussed about the difference between welder and welding operator, purpose of their qualification and how ASME section IX divided the welding in manual, semi-automatic, machine and automatic welding.
What is Heat Input (HI): In arc welding, energy is transferred from the welding electrode to the base metal by an electric arc. When welder initiate the arc, the welding electrode and base metal is melted and weld pool is generated. This weld pool results due to the energy supplied through the power source. Energy