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A. P. Polyakov, P. A. Polyakov

AN EXPERIMENTAL AND ANALYTICAL METHOD FOR CALCULATING THE POWER PARAMETERS OF EXTRUSION OF INCOMPACT MATERIALS

DOI: 10.17804/2410-9908.2019.2.037-056

On the basis of experimental studies of cold extrusion of green billets from vanadium-bearing iron powder composites, the effect of cohesion (shear strength) on the hazard of rod fracture during extrusion is shown.

The process of extrusion of an incompact material is mathematically modeled. It is shown that, for large die cone angles, it is preferable to use a rigid block design to determine the extrusion force, which implies the use of conditions on the surfaces of strong discontinuities in a plastically compressible medium.

A software package for modeling the extrusion and drawing of powder composites has been developed.

Keywords: extrusion, density, extrusion ratio, cohesion, modeling

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Article reference

Polyakov A. P., Polyakov P. A. An Experimental and Analytical Method for Calculating the Power Parameters of Extrusion of Incompact Materials [Electronic resource] // Diagnostics, Resource and Mechanics of materials and structures. - 2019. - Iss. 2. - P. 37-56. -
DOI: 10.17804/2410-9908.2019.2.037-056. -
URL: http://eng.dream-journal.org/issues/2019-2/2019-2_248.html
(accessed: 12/07/2022).  

 

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