Rolling (metalworking)
From Wikipedia, the free encyclopedia
Rolling is a fabricating process in which the metal, plastic, paper, glass, etc. is passed through a pair of rolls. There are two types of rolling process, flat and profile rolling. In flat rolling the final shape of the product is either classed as sheet (typically thickness less than 3 mm) or plate (typically thickness more than 3 mm). In profile rolling, the final product may be a round rod or other shaped bar such as a structural section (beam, channel, joist etc). Rolling is also classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature then the process is termed as hot rolling, If the temperature of metal is below its recrystallization temperature the process is termed as cold rolling.
Other processes also termed as 'hot bending' are induction bending, whereby the section is heated in small sections, and dragged into a required radius (see 'steel bending services'[1] for examples of all bending processes)
Heavy plate tends to be formed using a press process, and is termed forming, rather than rolling.
[edit] See also
 Metalworking:
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Coin die | Coining | Cold rolling | Die | Drawing | Electromagnetic forming | Flypress | Hot rolling | Hydraulic press | Hydroforming | Machine press | Progressive stamping | Progressive die | Punching | Punch press | Rolling | Shear | Stamping press | Metal spinning | Swage |
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