Stick welding is a welding process that uses electric current to heat and melt metal at the point of contact between two pieces of metal. It involves using an electrode (a metal rod with a coating) that is held in an electrode holder and connected to an electrical power source. The electrode then melts and fuses the metal together, creating a bond between the two pieces of metal. Stick welding is a popular welding process because of its simplicity and portability.