Modeling of Direct Extrusion of Porous Powder Billets

Lyudmila Ryabicheva; Dmytro Usatyuk; Nikolaj Beloshitskij

doi:10.4028/www.scientific.net/AMR.566.267

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 566Modeling of Direct Extrusion of Porous Powder...

Modeling of Direct Extrusion of Porous Powder Billets

Abstract:

The computer modeling results for direct extrusion of porous powder billets on a basis of the plasticity theory relations are presented. Distributions of stress-strain state parameters and density during direct extrusion of hollow detail from copper powder billet have obtained. The optimal value of backpressure, that ensures a uniform stress-strain state and given density of detail have found. The dependences of backpressure value from relative depth of cavity and extrusion pressure from backpressure are recommended.

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Periodical:

Advanced Materials Research (Volume 566)

Pages:

267-270

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.566.267

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Online since:

September 2012

Authors:

Lyudmila Ryabicheva, Dmytro Usatyuk, Nikolaj Beloshitskij

Keywords:

Backpressure, Deformation, Extrusion, Plasticity Theory, Porous Powder Billet, Stress

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References

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