hot work meaning: definition, quotations

hot work

verb

Engineering, Metallurgy, Natural sciences, Physical sciences 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, United States. Naval Ship Systems Command, Ship Metallic Material Comparison and Use Guide, page 5-2:
Brasses of this composition therefore should be hot worked above 600–700 ° C giving a fine grain and fibrous structure.1972, Arthur Cyril Davies, Science Practice Welding, page 110:

hot work

noun

Engineering, Metallurgy, Natural sciences, Physical sciences 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, Flake C. Campbell, Elements of Metallurgy and Engineering Alloys, page 420:

Any type of work, such as welding, soldering, or glassblowing, that causes of 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, John F. Rekus, Complete Confined Spaces Handbook, page 304:
Many organizations use a permit procedure for all hot work, except that involving normal operations or processes.2018, Frank R. Spellman, Kathern D. Welsh, Safe Work Practices for Wastewater Treatment Plants, page 151:

Related terms: cold work, cold forming