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Improvement of upsetting process of four-beam workpieces based on computerized and physical modeling
Autor:
Markov Oleg E., Kukhar Volodymyr V., Zlygoriev Vitalii N., Shapoval Alexander A., Khvashchynskyi Anton S., Zhytnikov Roman U.
Publikováno v:
FME Transactions, Vol 48, Iss 4, Pp 946-953 (2020)
The method of upsetting of large ingots has been investigated in this work. The proposed method consists in upsetting of profiled workpieces with concave faces. An angle of the concave faces was 150°. A relative depth of the concave faces has been v
Externí odkaz:
https://doaj.org/article/27452430e5d04e98a5a195c4f5cdf415
Publikováno v:
Academic Journal of Manufacturing Engineering; 2024, Vol. 22 Issue 1, p50-58, 9p
Publikováno v:
In Procedia Engineering 2016 165:1693-1704
Publikováno v:
E3S Web of Conferences, Vol 280, p 07017 (2021)
The process of thermo-mechanically controlled rolling in the conditions of Steckel mill of Ferriera Valsider plant was developed for the first time for hot-rolled coils in the sizes of 12 mm × 1510 mm from steel of X65 grade for further production o
Externí odkaz:
https://doaj.org/article/7af52d4ba3fb478c8c313c17c7c036e4
Publikováno v:
E3S Web of Conferences, Vol 284, p 06005 (2021)
The paper’s authors researched the defects correction for RSt 34-2 (1.0034) steel wire, obtained as result of its overheating at 1140...1160 °C. Instead of the re-heat treatment method, the authors proposed five cold drawing, annealing and overhea
Externí odkaz:
https://doaj.org/article/c3f539de37ec4f65b1332b64da02c7c7
Publikováno v:
E3S Web of Conferences, Vol 234, p 00079 (2021)
The paper implements a method for analyzing the stress-strain state of rectangular hollow sections (RHS) by finite-element modeling (FEM) of tests for three-point bending and torsion. Design schemes, 3-D solid-state and deformable models have been de
Externí odkaz:
https://doaj.org/article/937e619d1ca14caa9f060694fc8eeb48
Autor:
Kukhar, Volodymyr V., Vasylevskyi, Oleg, Malii, Khrystyna, Zurnadzhy, Vadym, Efremenko, Bohdan, Sili, Ivan
Publikováno v:
Diffusion and Defect Data Part A: Defect and Diffusion Forum; January 2024, Vol. 430 Issue: 1 p23-29, 7p
Publikováno v:
E3S Web of Conferences, Vol 164, p 14004 (2020)
Research was conducted to determine the effect of lubricants on stress and strain in the contact of metal surfaces. Experiments were carried out on the introduction of a fixed and moving indenter in contact with a dry and lubricated surface.The steel
Externí odkaz:
https://doaj.org/article/577a4649ab2641cd9d8147350ee5e2be
Publikováno v:
E3S Web of Conferences, Vol 135, p 01002 (2019)
The authors presented in the article an analytical model of superplastic forming of spherical shells by pressure of the gas (gaseous phase) created upon sublimation of sublimate agent. Sublimate was placed in a hermetic cavity between the workpiece a
Externí odkaz:
https://doaj.org/article/d8a1a4c34af540aa8e32c1f1b5beb82e