Final answer:
MIG Welding or Gas Metal Arc Welding is a process where thermal energy from an electric arc is used to melt and join metals. Welders use protective gear to safeguard against heat, sparks, and radiation, and galvanization protects the welds from corrosion.
Step-by-step explanation:
MIG Welding, also known as Gas Metal Arc Welding (GMAW), is a process in which an electric arc forms between a consumable wire electrode and the metal workpiece.
This arc generates thermal energy sufficient to melt the metals at the welding point. Welding incorporates different sources of fuel, such as gas, electricity, and laser.
A classic example of a welding reaction is the thermite reaction, which involves aluminum metal and iron(III) oxide and results in molten iron, capable of creating strong bonds between metal parts upon cooling.
Welders must wear protective gear, including welder's gloves and helmets, to shield themselves from the intense heat, sparks, and electromagnetic radiation produced during the welding process.
The heat from the electric arc can be felt several meters away, and its bright light is visible for kilometers. Additionally, the galvanization method is used to protect welded metal from corrosion by coating it with a layer of zinc.