Influence of technological conditions of drawing on inhomogeneity of deformation under condition of hydrodynamic lubrication

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F13%3A86088648" target="_blank" >RIV/61989100:27360/13:86088648 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of technological conditions of drawing on inhomogeneity of deformation under condition of hydrodynamic lubrication

Popis výsledku v původním jazyce

At conventional lubrication during wire drawing it is possible to expect the value of the friction coefficient between 0.05 and 0.13. However, according to some authors it is possible to achieve under conditions of hydrodynamic lubrication (for example with use of compressive dies) a friction coefficient ? = 0.0005, it means hundred times lower. Such values already allow us to consider such technological parameters, which would lead at higher friction coefficients to unacceptably large total forces, orto wire breakage. We focus in this paper on the FEM analysis of drawing with small deformation angles of the die and large partial deformations. We will focus on normal cone die. The first part presents a simulation of drawing with use of small deformation angles, for friction value ? = 0.0005. We analyse the influence of the die geometry on the overall drawing force and the inhomogeneity of deformation intensity over the cross section of wire at single pass drawing.

Název v anglickém jazyce

Influence of technological conditions of drawing on inhomogeneity of deformation under condition of hydrodynamic lubrication

Popis výsledku anglicky

At conventional lubrication during wire drawing it is possible to expect the value of the friction coefficient between 0.05 and 0.13. However, according to some authors it is possible to achieve under conditions of hydrodynamic lubrication (for example with use of compressive dies) a friction coefficient ? = 0.0005, it means hundred times lower. Such values already allow us to consider such technological parameters, which would lead at higher friction coefficients to unacceptably large total forces, orto wire breakage. We focus in this paper on the FEM analysis of drawing with small deformation angles of the die and large partial deformations. We will focus on normal cone die. The first part presents a simulation of drawing with use of small deformation angles, for friction value ? = 0.0005. We analyse the influence of the die geometry on the overall drawing force and the inhomogeneity of deformation intensity over the cross section of wire at single pass drawing.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regionální materiálově technologické výzkumné centrum</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]

ISBN

978-80-87294-41-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

358-363

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

15. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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