Abstract
Powder forming involves compacting a metal powder into a green preform and then after modifying the metallurgical structure, forming the preform by repressing or upsetting in a closed-die. In powder forming the matrix material may be composed of a solid part and a disconnected occluded space. The notion of porosity is then introduced as the ratio of the volume of the porous space to the total volume of the material. It is denoted by ⌽. In this section the assumption that porous space is an empty space is made. This simplified assumption in powder forming can be questionable for porous materials with porous space containing fluid. Such a case is however the rarity in powder forming so has been omitted in the book.
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© 2004 Springer-Verlag Berlin Heidelberg
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Służalec, A. (2004). Description of Powder Material. In: Theory of Metal Forming Plasticity. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-10449-1_7
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DOI: https://doi.org/10.1007/978-3-662-10449-1_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-07370-0
Online ISBN: 978-3-662-10449-1
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