Development of a Force Parameter Model for a New Severe Plastic Deformation Technique – Multi-ECAP-Conform

Fakhretdinova, Elvira I.; Рааб, Г. И.; Ganiev, M. M.

doi:10.4028/www.scientific.net/amm.698.386

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…[122], it is sensible to pay further attention to fabricate tubular UFG materials. Whereas most of the techniques in Table 2 are capable to [82], continuous confined strip shearing (C2S2) [83][84][85][86], ECAP-Conform [87], Multi ECAP Conform [91], and continuous frictional angular extrusion [90]. Therefore, the continuity of the process and its ability to process work pieces with different shapes and geometries are some of the key factors that make ECAP as a good candidate for industrial uses.…”

Section: -mentioning

confidence: 99%

“…During the last three decades, severe plastic deformation has progressed as a novel method to achieve nano/ultra-fine grained structure in a wide range of metallic materials. To the end of 2016, SPD processing has attracted the significant attention of more than 4700 researchers from Equal-channel angular pressing (ECAP) [81] Conshearing process [82] Continuous confined strip shearing (C2S2) [83][84][85][86] ECAP-Conform [87] Equal channel angular drawing (ECAD) [88,89] Continuous frictional angular extrusion [90] Multi ECAP Conform [91] Integrated conventional tandem rolling with ECA deformation (CR-ECA) [92] Single roll drive equal channel angular process [93] Single/two turn incremental ECAP (I-ECAP); double billet I-ECAP [94,95] Incremental ECAP of plates [96] Equal channel angular swaging [97] Equal-channel angular pressing in parallel channels [98] Multi turn/pass ECAP (3D ECAP) [99,100,80] Dual equal channel lateral extrusion (DECLE) [101] Rotary-fie equal channel angular pressing [102,103] T-shaped equal channel angular pressing [104,105] Cross-equal channel angular pressing (firstly named as cross-channel extrusion) [106,107] ECAP with converging billets [108] Repetitive upsetting [109] Half channel angular extrusion (HCAE)…”

Section: Summery and Conclusionmentioning

confidence: 99%

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An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications

Bagherpour

Pardis

Reihanian

et al. 2018

Int J Adv Manuf Technol

122

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The present overview gives a new approach toward developments and recent achievements in severe plastic deformation. The review focuses on several subjects. First, an outline of SPD research status in the world is presented by literature analysis based on the total number of publications, citations and the contribution of the topranked countries. Second, the mechanisms of grain refinement and grain growth during SPD processing are discussed by means of the latest concepts. Third, all SPD methods invented so far are classified based on a new approach. Up to now, the growing tendency of researchers to introduce new SPD techniques results in a large number of SPD methods which can be considered as new or modified techniques or a combination of previous ones. Such a reference can help to prevent the future duplication to introduce the SPD processes, which are technically similar. At the end, the practical applications of ultrafine/nanostructured materials and industrial commercialization of SPD methods are summarized.

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Section: -mentioning

confidence: 99%

Section: Summery and Conclusionmentioning

confidence: 99%

An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications

Bagherpour

Pardis

Reihanian

et al. 2018

Int J Adv Manuf Technol

122

View full text Add to dashboard Cite

show abstract

“…Despite the noted shortcomings, the above methods of continuous pressing are currently being actively improved by leading experts of various countries [4].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Identification of regularities of changes in energy-power parameters depending on the design of the roller node of a new radial-shear mill by computer simulation

Mashekov

Nurtazayev

Mashekova

et al. 2020

EEJET

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This paper proposes a radial-shear mill (RSM) of a new design, which allows by rolling or rolling and pressing operations obtaining high-quality rods and wires. In addition, it proposes the method of computer calculation of the energy-power parameters of bar extrusion at the RSM of the new design. Mathematical dependences and calculation algorithm were described, which allow calculating energy-power parameters of the combined bar manufacturing process at a given level of technological parameters. Based on the results of analytical studies and computer modeling, the energy-power parameters were defined and analyzed, in addition, the laws of their changes were determined. It is shown that, regardless of the alloy grade or type, when rolling billets on a new RSM with smooth rolls, the strain force is larger in magnitude compared to rolling in helical rolls. It was found that, in comparison with rolling of bars in smooth and helical rolls, their processing by a combined rollingpressing process leads to an increase in the deformation force of alloys M1 and D16 by 1.1-1.15 and 1.15-1.3 times, respectively. It is shown that during the deformation of the rods on the new RSM, by controlling the paths of the metal flow in the deformation zone, intensive grinding of the metal structure can be achieved. It was found that when pressing the bars on the new RSM, the temperature of the workpiece increases up to 420 °С, which leads to a sharp decrease in the force required for deformation. The nature of the temperature distribution of the pressed metal in the deformation zone was determined. The adequacy of the models was proved by comparing calculated values of the power parameters of extrusion, obtained by engineering technique and numerical simulation

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“…The obtained dependences, after checking for adequacy, allow to determine the most optimal parameters of the investigated deformation process. This approach has proven itself well in the study of combined processes [1,2].…”

Section: Introductionmentioning

confidence: 99%

Investigation of force parameters during rolling in relief rolls

Esbolat,

Panin,

Arbuz

et al. 2023

JCTM

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The paper presents the results of theoretical studies of the force parameters of thick-sheet blanks rolling in relief rolls. Empirical dependences were obtained to determine the average rolling pressure and force. When studying the pressure, the approach of replacing the deformation scheme with a flat analog was used. In the analysis of the force, the finite element method was used to determine the geometric parameters of the deformation zone. Verification of the obtained dependencies was carried out by comparison with the results of computer simulation. Comparative analysis showed high convergence of the calculation and simulation results, as well as the possibility of applying the formulas obtained not only for symmetrical rolling or for speed asymmetry, but also in the case of rolling in relief rolls of different diameters.

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Development of a Force Parameter Model for a New Severe Plastic Deformation Technique – Multi-ECAP-Conform

Cited by 4 publications

References 6 publications

An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications

An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications

Identification of regularities of changes in energy-power parameters depending on the design of the roller node of a new radial-shear mill by computer simulation

Investigation of force parameters during rolling in relief rolls

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