Gas Metal Arc Welding (GMAW), also known as Metal Inert Gas (MIG) welding, is a versatile and widely used welding process that employs a continuously-fed wire electrode and a shielding gas to create a weld pool, offering high efficiency and ease of automation. This method is ideal for welding various metals, including steel, aluminum, and copper, and is commonly used in manufacturing, automotive, and construction industries due to its speed and adaptability.