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The Kallanish Glossary aims to be a useful resource for complex industry specific terminology. We are constantly adding to our glossary, so if you have a suggestion or amendment please do get in touch.



This is a way of producing individual metal parts by mechanical impact. It is suitable for working a wide range of steels, and can be done with the metal cold, warm or hot. The metal changes shape while in a solid rather than molten state making it quite different to a casting process. Forgings are used principally where strength and in-service integrity are key requirements. They are stronger than cast or machined parts because the mechanical deformation allows the grain structure of the metal to closely follow the part’s finished shape. There are a number of forms of forging which involve containing the metal workpiece to a greater or lesser degree. The starting material may be steel bar, billet or ingot, and this is often sourced externally from steelmakers.

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