Welding is a process used to join two or more pieces of metal together by melting them at high temperatures. This is typically done using a welding machine that generates heat through electricity or gas. The melted metal cools and solidifies, creating a strong bond. Welders often wear protective gear, such as helmets and gloves, to shield themselves from sparks and intense light. There are different types of welding techniques, including MIG welding, TIG welding, and stick welding. Each method has its own advantages and is suited for various applications, from construction to automotive repair. Skilled welders are essential in many industries, ensuring structures and products are safe and durable.