2019
DOI: 10.15587/1729-4061.2019.160585
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Derivation of engineering formulas in order to calculate energy-power parameters and a shape change in a semi-finished product in the process of combined extrusion

Abstract: Досліджено можливості використання та вбудовуваності кінематичних трапецеїдаль них модулів з криволінійною границею різної форми. На основі енергетичного методу отри мані узагальнені формули для розрахунку потужності сил деформування всередині осьо вого трапецеїдального кінематичного моду ля. Відокремлені різні види вибору функцій, що описують криволінійну границю осьово го трапецеїдального модуля. Проаналізовано можливості використання відомих прийомів лінеа ризації підинтегральних залежностей для розрахунку … Show more

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Cited by 9 publications
(13 citation statements)
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“…However, when modeling the processes of combined extrusion with several degrees of freedom of the metal flow, one should control the correspondence between the theoretically obtained calculations and experimental data. At the same time, special attention should be paid to the reliability of the resulting assessment of the shape change in a semi-finished product as the processes of combined extrusion occur under a self-regulating mode [16,27]. And it is the search for the conditions of the preferred choice from the set of the developed estimation schemes, restrictions, and boundaries of their use which is one of the main tasks for the researcher within the framework of the energy method.…”
Section: Energy Methods For Calculating the Force Regime And Incremmentioning
confidence: 99%
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“…However, when modeling the processes of combined extrusion with several degrees of freedom of the metal flow, one should control the correspondence between the theoretically obtained calculations and experimental data. At the same time, special attention should be paid to the reliability of the resulting assessment of the shape change in a semi-finished product as the processes of combined extrusion occur under a self-regulating mode [16,27]. And it is the search for the conditions of the preferred choice from the set of the developed estimation schemes, restrictions, and boundaries of their use which is one of the main tasks for the researcher within the framework of the energy method.…”
Section: Energy Methods For Calculating the Force Regime And Incremmentioning
confidence: 99%
“…KPVF of the axial trapezoidal kinematic module 1 in a generalized form for the scheme of the process CDZ-1.i [27]:…”
Section: Development Of Estimation Schemes For the Process Of Combmentioning
confidence: 99%
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“…That would make it possible to build the estimation schemes of a deformation process taking into consideration the relevant (to experimental data) boundaries of the metal flow interface within a semi-finished product, as well as the boundaries of the contact between a tool and a workpiece [16,17]. At the same time, the possibility to obtain analytical dependences of the reduced pressure makes it possible to optimize the force mode, determine the optimal configuration of the tool and, for the case of combined joint extrusion, to predict the shape change and defect formation in a component [18].…”
Section: Literature Review and Problem Statementmentioning
confidence: 99%
“…In the development of new estimation schemes according to the modular approach, it is possible to use, for known kinematic modules, the ready components of reduced pressures of deformation, cutting, and friction [19]. In this case, in order to qualitatively assess the prediction of defect formation in the form of a shrinkage depression at combined extrusion, it is necessary to pay special attention to the character of change in the optimal value for the kinematic parameters in the course of the process.…”
Section: Construction Of An Estimation Scheme For the Process Of Cmentioning
confidence: 99%