A metalworker is a person who works with metal, typically to create or repair objects. A tinsmith is a metalworker who specializes in working with thin sheets of metal, such as tin, to create items like roofs, gutters, and other objects. A SMITH is a metalworker who works with metal to create tools, weapons, and other objects. A welder is a metalworker who uses heat to join pieces of metal together. An alchemist is a metalworker who specializes in the transformation of metals, often through the use of chemical reactions.