Email this article Investigation of the dependence of the force of reverse extrusion of workpieces on the relative dimensions of a stepped punch
- Authors: Dmitriev A.M.1, Korobova N.V.1
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Affiliations:
- MSUT "STANKIN"
- Issue: No 1 (2025)
- Pages: 83-92
- Section: Technologies and Machines for Pressure Processing
- URL: https://journal-vniispk.ru/2072-3172/article/view/361378
- ID: 361378
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Abstract
The formula has been obtained for determining the force of cold volumetric stamping by extrusion of a glass- type part with a stepped cavity. The formula was obtained by conducting an experimental study according to the plan, which is the development of the method of Greek-Latin squares, as well as using the method of processing the research results described in the article. Extrusion was carried out in one transition with a punch, in which the working part has a stepped shape with a galtel under the step. The formula makes it possible to determine the extrusion force of a punch depending on the shape and size of the working part. To expand the scope of the obtained formula for calculating the cold extrusion forces of parts made of different materials having different cavity shapes, the extrusion forces, which also depend on the hardening characteristics of the workpiece material, and the dimensions of the stepped punch under study are considered and taken into account in the obtained formula in relative terms. The results of determining the extrusion force with a stepped punch have been verified by extrapolating the obtained formula to the shape of a smooth (stepless) punch. The verification showed the validity of the formula obtained.
About the authors
A. M. Dmitriev
MSUT "STANKIN"
Author for correspondence.
Email: countess.olga@gmail.com
corresponding member of the Russian Academy of Sciences, D.Sc. of Engineering, Professor
N. V. Korobova
MSUT "STANKIN"
Email: mt-6@yandex.ru
D.Sc. of Engineering, head of the sub-department of "Plastic Deformation Systems"
References
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