FEM-modelling of Barrel-type Cross-roll Piercing and Analysis of the Induced Rotational Motion of the Plug Bar

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

FEM-modelling of Barrel-type Cross-roll Piercing and Analysis of the Induced Rotational Motion of the Plug Bar

Popis výsledku v původním jazyce

Essential for the manufacturing of seamless precision steel tubes is the knowledge of the entire process chain. In regard to the cross-roll piercing procedure, the aim is to accurately predict material flow and resulting mechanical and geometrical properties of the tubular hollow. The plug guides the material flow and rotates due to friction in contact zones with the billet material. Because of elastic deflections of the rotating plug bar, the behaviour of plug bar and plug does significantly influencethe billet deformation. A gap of knowledge exists about the induced motion of the plug and, as a consequence, about the influence of its motion on the resulting properties of the tubular hollow. To simulate material flow and elastic deflections of the plug bar, a finite element model was developed using FEM-software DEFORM. Different fracture models to simulate the fracture evolution due to the Mannesmann efect were compared. Simulations without plug, and with rigid plug and plug bar, an

Název v anglickém jazyce

FEM-modelling of Barrel-type Cross-roll Piercing and Analysis of the Induced Rotational Motion of the Plug Bar

Popis výsledku anglicky

Essential for the manufacturing of seamless precision steel tubes is the knowledge of the entire process chain. In regard to the cross-roll piercing procedure, the aim is to accurately predict material flow and resulting mechanical and geometrical properties of the tubular hollow. The plug guides the material flow and rotates due to friction in contact zones with the billet material. Because of elastic deflections of the rotating plug bar, the behaviour of plug bar and plug does significantly influencethe billet deformation. A gap of knowledge exists about the induced motion of the plug and, as a consequence, about the influence of its motion on the resulting properties of the tubular hollow. To simulate material flow and elastic deflections of the plug bar, a finite element model was developed using FEM-software DEFORM. Different fracture models to simulate the fracture evolution due to the Mannesmann efect were compared. Simulations without plug, and with rigid plug and plug bar, an

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

10th International Conference on The Technology of Plasticity, ICTP 2011, Special Edition

ISBN

978-3-514-00784-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

143-148

Název nakladatele

Wiley-VCH Verlag GmbH & Co.

Místo vydání

Weinheim, Germany

Místo konání akce

Aachen, germany

Datum konání akce

25. 8. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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