hot work

hot work (third-person singular simple present hot works, present participle hot working, simple past and past participle hot worked)

1. (metallurgy) To plastically deform metal (or other material) at temperatures above the recrystallization temperature but below the melting point of the material.
   • 1971, United States. Naval Ship Systems Command, Ship Metallic Material Comparison and Use Guide, page 5-2:

     Wrought copper and copper alloys are readily hot worked by rolling, forging, pressing, bending, and forming operations.

   • 1972, Arthur Cyril Davies, Science Practice Welding, page 110:

     Brasses of this composition therefore should be hot worked above 600–700 ° C giving a fine grain and fibrous structure.

hot work (uncountable)

1. (metallurgy) Any of several plastic deformations of metal (or other material) at relatively high temperatures.
   • 2008, Flake C. Campbell, Elements of Metallurgy and Engineering Alloys, page 420:

     Although tungsten hot work steels can be air hardened, they are usually quenched in oil or hot salt to minimize scaling.

2. Any type of work, such as welding, soldering, or glassblowing, that causes of a potential fire hazard because it causes sparks or flames.
   • '1994, John F. Rekus, Complete Confined Spaces Handbook, page 304:

     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.

   • 2018, Frank R. Spellman, Kathern D. Welsh, Safe Work Practices for Wastewater Treatment Plants, page 151:

     Many organizations use a permit procedure for all hot work, except that involving normal operations or processes.

• cold work
• cold forming

• hot work on Wikipedia.Wikipedia
• “hot work”, in OneLook Dictionary Search.