hot work noun 2verb 1forms 3 noun2 •Any type of work, such as welding, soldering, or glassblowing, that is a potential fire hazard because it causes sparks or flames.Hot work presents two significant hazards. First, open flames, flying sparks and hot surfaces can ignite flammable gases and vapors. Second, hot work may produce toxic flames and gases. — 1994 •Any of several plastic deformations of metal (or other material) at relatively high temperatures.Although tungsten hot work steels can be air hardened, they are usually quenched in oil or hot salt to minimize scaling. — 2008 verb1 •To plastically deform metal (or other material) at temperatures above the recrystallization temperature but below the melting point of the material.Wrought copper and copper alloys are readily hot worked by rolling, forging, pressing, bending, and forming operations. — 1971 formshot worked · hot working · hot works