Spot welding is a popular joining process used widely in the metal fabrication industry. However, there are many other synonyms for spot welding. The most common synonyms include resistance spot welding, punctual welding, projection welding, and localized welding. Resistance spot welding is a process that involves the use of electricity to create a spot weld. Punctual welding is a type of spot welding that is used to join small metal parts. Projection welding is a process that involves the use of electrodes with projections to create an arc that melts the metal parts together. Lastly, localized welding is a type of spot welding that is commonly used to join cylindrical objects.