Arc welding is a welding technique that uses an electric arc to melt and fuse metals. It is a common welding method and can be used on a variety of materials and thicknesses.
Gas welding uses a flame produced by burning a fuel gas with oxygen to melt and fuse metal. It is a versatile welding method that can be used on various materials, but it requires more skill and experience than other welding techniques.
Resistance welding uses an electric current to heat and join metal parts. It is a fast and efficient welding method used in industries such as automotive and electronics manufacturing.
Other types of welding include laser welding, electron beam welding, friction welding, and ultrasonic welding. These methods offer unique advantages and are used in specific applications and industries.