Fabrication and Processing of Engineering Materials - Forming Operations

5 important questions on Fabrication and Processing of Engineering Materials - Forming Operations

What are forming operations?

Forming operations deform the metal piece by means of plastic deformation. So the deformation is induced by an external force that is bigger than the yield strength.

What are common forming techniques?

- Forging
- Rolling
- Extrusion
- Drawing

When is a process called hot working?

When the process is preformed at a temperature above the recrystalization temperature.
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What are the advantages of cold working over hot working?

With cold working the surface finish will be of a higher quality, better mechanical properties and closer dimensional control of the finished piece.

What is drawing in metal forming operations?

With drawing a the metal is pulled instead of pushed, like extrusion.

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