Types of welding polarity Types of electrode used in SMAW Different between red and green tungsten Aim of measur project Different between MIG AND FCAW

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Questions related to welding and a project aim

There are two types of welding polarity: direct current electrode negative (DCEN) and direct current electrode positive (DCEP)
SMAW electrodes are classified based on their coating and intended use
Red tungsten is used for DC welding while green tungsten is used for AC welding
The aim of the measur project is to develop a system for measuring and analyzing energy consumption in buildings
MIG welding uses a continuously fed wire electrode while FCAW uses a tubular electrode filled with flux