welder
Definitions
A person whose job is to join metal parts together by heating the surfaces to the point of melting.
A machine or tool used for joining metal parts by heating and fusing them.
Examples
The welder wore a protective mask to shield his eyes from the intense sparks.
After years of training, he finally became a certified welder working on large construction projects.
Synonyms
metal worker fabricator arc welder tradesperson metal joiner