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Wyszukujesz frazę "Xianning, She" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Comprehensive system for simulation of vibration processes during the titanium alloys machining
Autorzy:
Stupnytskyy, Vadym
Xianning, She
Novitskyi, Yurii
Novitskyi, Yaroslav
Powiązania:
https://bibliotekanauki.pl/articles/27309878.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
titanium alloys
cutting dynamic
simulation
adiabatic shear
finite element analysis
stopy tytanu
dynamika skrawania
symulacja
analiza elementów skończonych
Opis:
Titanium alloys are difficult-to-machine materials due to their complex mechanical and thermophysical properties. An essential factor in ensuring the quality of the machined surface is the analysis and recommendation of vibration processes accompanying cutting. The analytical description of these processes for machining titanium alloys is very complicated due to the complex adiabatic shear phenomena and the specific thermodynamic state of the chip-forming zone. Simulation modeling chip formation rheology in Computer-Aided Forming systems is a practical method for studying these phenomena. However, dynamic research of the cutting process using such techniques is limited because the initial state of the workpiece and tool is a priori assumed to be "rigid", and the damping properties of the fixture and machine elements are not taken into account at all. Therefore, combining the results of analytical modeling of the cutting process dynamics with the results of simulation modeling was the basis for the proposed research methodology. Such symbiosis of different techniques will consider both mechanical and thermodynamic aspects of machining (specific dynamics of cutting forces) and actual conditions of stiffness and damping properties of the “Machine-Fixture-Tool-Workpiece” system.
Źródło:
Archive of Mechanical Engineering; 2023, LXX, 1; 85--105
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comprehensive analysis of tribological factor influence on stress-strain and thermal state of workpiece during titanium alloys machining
Autorzy:
Stupnytskyy, Vadym
She, Xianning
Powiązania:
https://bibliotekanauki.pl/articles/1845041.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
titanium alloy
cutting
coefficient of friction
stress-strain state
thermal state
simulation of cutting
tool wear
stop tytanu
obróbka
współczynnik tarcia
stan naprężeń i odkształceń
stan termiczny
symulacja obróbki
zużycie narzędzi
Opis:
The article describes how different friction coefficients under certain cutting conditions and parameters affect the formation of the stress-strain and thermal states of the product when titanium alloy machining. A new research methodology is used for the study. Firstly, in the initial data for simulation, each time a different declared coefficient of friction is proposed, and every such task of the cutting process modelling is solved for various cutting parameters. The second stage analyzes how these coefficients influence the stress-strain and thermodynamic state of the workpiece and tool during cutting, as well as the tool wear dynamics. In the third stage of the study, ways for ensuring these analytically-grounded tribological cutting conditions are proposed. The analysis of different wear criteria in the simulation models of titanium alloys cutting is carried out. Experimental studies confirm simulation results.
Źródło:
Archive of Mechanical Engineering; 2021, LXVIII, 2; 227-248
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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