Drawbead Forces in Sheet Metal Forming

Nine, Harmon D.

doi:10.1007/978-1-4613-2880-3_8

Cited by 157 publications

(88 citation statements)

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“…Testy eksperymentalne ciągnienia blachy ze zginaniem zrealizowano za pomocą symulatora progu ciągowego, którego budowa oparta jest na koncepcji Nine'a [8]. Ideą przyrządu jest moŜliwość oddzielenia oporów odkształcenia blachy od oporów tarcia.…”

Section: Materiał I Badania Eksperymentalneunclassified

FEM simulation of sheet movement through the draw bead

Trzepieciński¹,

Warchoł²

2015

Mechanik

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Streszczenie: W pracy przedstawiono wyniki badań eksperymentalnych oraz symulacji numerycznych badania oporów tarcia blach ze stopu aluminium AA5251 H14. Badania tarcia zostały przeprowadzone za pomocą symulatora progu ciągowego. Wykonano równieŜ symulacje numeryczne testu tarcia metodą elementów skończonych w programie MSC.Marc 2010. Symulacje wykonano dla modelu izotropowego materiału określonego kryterium plastyczności HuberMises-Henck'y oraz kryteriów anizotropowych plastyczności Hilla (1948) oraz Barlata (1991). Analizowano rozkład napręŜeń w przekroju przeciąganej blachy oraz prognozowano numerycznie wartość współczynnika tarcia. Numeryczna analiza symulatora progu ciągowego przedstawiona w pracy umoŜliwia określenie wpływu modelu anizotropii plastycznej materiału, orientacji próbki oraz zjawiska umocnienia odkształceniowego na wartość oporów tarcia.Słowa kluczowe: anizotropia, MES, próg ciągowy, tarcie, współczynnik tarcia, wytłaczanie FEM SIMULATION OF SHEET MOVEMENT THROUGH THE DRAW BEADAbstract: The paper presents the results of experimental and numerical simulation studies of frictional resistance of AA5251 H14 aluminium alloy sheets. Friction tests were carried out by using the draw bead simulator. Numerical simulations of a friction test using MSC.Marc 2010 software based on finite element method were also performed. Simulations were carried out for an isotropic material model described by using Huber-Mises-Henck'y yield criterion and anisotropic yield criteria proposed by Hill (1948) and Barlat (1991). We analyzed the stress distribution in the section of pulled sheet and also we numerically predicted the friction coefficient value. Numerical analysis of the draw bead simulator presented in the work allows to determine the effect of plastic anisotropy material model, the orientation of the sample and the strain hardening phenomenon on the value of the resistance to friction.

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Section: Materiał I Badania Eksperymentalneunclassified

FEM simulation of sheet movement through the draw bead

Trzepieciński¹,

Warchoł²

2015

Mechanik

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“…Correspondence of single value surface parameters with coefficient of friction (!loBs) for the commercial samples.Dual action press used in metal forming, from [36].…”

Section: List Of Tablesmentioning

confidence: 99%

“…The drawbead simulator, developed by Harmon Nine [36] at General Motors, was _ developed as a means of ranking lubricants used in stamping processes. For this investigation it has been used to compare the frictional properties of different sheet steels.…”

Section: Dra Wbead Simulator Testsmentioning

confidence: 99%

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The effect of surface morphology on the friction of electrogalvanized sheet steel in forming processes

Skarpelos

1993

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“…However, due to complex combination of bending/unbending strains and friction forces acting on the blank what actually happens in the drawbead is not clearly understood. In order to better understand the involved phenomena, Nine [7][8][9] designed an experimental drawbead simulation rig which allows to separate the contribution of the bending forces from the contribution of the friction forces. Numerical simulation of this experimental device is the object of our third application.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

Chabrand

Dubois

Graillet

et al. 2005

Finite Elements in Analysis and Design

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The aim of the present study was to carry out a numerical comparison of different frictional contact algorithms. Therefore three different contact algorithms (Lemke, penalty and Augmented Lagrangian) have been implemented into two finite element codes. The correct implementation and behavior of these contact algorithms has been investigated by modeling four different tribological devices. It is shown that all these different methodologies lead to extremely similar results. Besides these four applications have been carefully described and detailed in such a way that the presented tests can be reproduced. The authors wish that they could serve as a benchmark set in order to allow comparison with other finite element software including frictional contact capabilities.

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Drawbead Forces in Sheet Metal Forming

Cited by 157 publications

References 1 publication

FEM simulation of sheet movement through the draw bead

FEM simulation of sheet movement through the draw bead

The effect of surface morphology on the friction of electrogalvanized sheet steel in forming processes

Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

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