MATEC Web Conf.
Volume 329, 2020International Conference on Modern Trends in Manufacturing Technologies and Equipment: Mechanical Engineering and Materials Science (ICMTMTE 2020)
|Number of page(s)||7|
|Published online||26 November 2020|
Channel Angular Pressing of the Annular Billets from Copper M4
Yakutsk Science Center Federal Research Center, V.P. Larionov Institute of Physical and Technical Problems of the North, 677980 Yakutsk, Russia
* Corresponding author: firstname.lastname@example.org
The article presents a new method of channel angular pressing (CAP) of annular metal billets developed on the basis of the invention patented in the Russian Federation. The diagram, general view and details of the device produced on the basis of the invention are presented. An example of cold CAP of an annular billet from technical copper M4 is given. Annular billets from copper M4 with 13.9 mm outer diameter, 1.9 mm wall thickness and 4.1 mm height were subjected to CAP at room temperature with a device with the outlet and inlet channels diameters ratio D / d ≅ 1.14. The annular billet was loaded with a tubular punch by a hydraulic press. The diagram of the loading of an annular billet from copper M4 is presented. The CAP resulted in the hardening of the billet material. The results on the mechanical properties under axial compression of annular samples from commercial copper M4 in the initial state and after CAP are presented. Mechanical tests for axial compression of annular samples with 16 mm outer diameter, 1.45 mm wall thickness and 3.35 mm height were carried out with Instron-1195 testing machine at a constant loading rate of ≈ 0.83*10-5 ms-1. An increase in strength of copper M4 as a result of CAP at room temperature was found.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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