Open AccessCold extrusion with differentiated counter-pressure of die cavities
Author(s) -
V. L Kaljuzhnyj,
V. V Pimanov
Publication year - 2013
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-67982
Subject(s) - extrusion , die (integrated circuit) , finite element method , materials science , plasticity , stress (linguistics) , mechanical engineering , metal forming , composite material , structural engineering , engineering , linguistics , philosophy
The article describes the engineering method to obtain the correlation for the determination of stresses on the contact surfaces of the workpiece and the tool, the efforts of the extrusion of cavities by spherical die. It shows numerical simulations made on computer simulation by the finite element method on examples of extrusion by spherical die of billets made of R6M5 (Р6М5) steel under the action of counter-pressure on the free surface of the workpiece. The paper contains the definition of the maximum counter-pressure through simulation that provides extrusion without destruction and the efforts of the processes, the distribution of stresses in the deforming tool and the stress-strain state, the degree of resource use of metal plasticity, as well as the final product dimensions. The article contains a description of the experiment on the extrusion billets of steel R6M5 (Р6М5) spherical die.