A mixed lubrication model for cold rolling was developed by separating, according to common concepts, the domain of calculation into two zones: the inlet zone and the zone of plastic strip bulk deformation. The analysis of the inlet zone mainly focuses on film formation from different lubricants based on the evolution of layers consisting of neat oil on the metallic surfaces. In the zone of plastic strip bulk deformation, contributions of boundary and hydrodynamic friction are modeled incorporating longitudinal and transversal roughness components. Lubricant pressure, which is influenced by the geometry of these roughness structures, is governed by hydrodynamic mechanisms. Additionally, lubricant temperature in the roll bite is predicted by an integrated thermodynamics sub-model. While coupling between the inlet and plastic deformation zones is performed iteratively, the highly non-linear and coupled equations for the latter zone are solved simultaneously by applying a variant of the well-known damped Newton-Raphson method.
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ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing
June 4–8, 2012
Notre Dame, Indiana, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5499-0
PROCEEDINGS PAPER
Mixed Lubrication Model for Cold Rolling Considering the Inlet and Deformation Zones Available to Purchase
Martin Bergmann,
Martin Bergmann
Johannes Kepler University Linz, Linz, Upper Austria, Austria
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Klaus Zeman,
Klaus Zeman
Johannes Kepler University Linz, Linz, Upper Austria, Austria
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Alexander Kainz,
Alexander Kainz
Johannes Kepler University Linz, Linz, Upper Austria, Austria
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Konrad Krimpelstätter,
Konrad Krimpelstätter
Siemens VAI Metals Technologies GmbH, Linz, Upper Austria, Austria
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Dieter Paesold,
Dieter Paesold
Voestalpine Stahl GmbH, Linz, Upper Austria, Austria
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Peter Schellingerhout,
Peter Schellingerhout
Quaker Chemical B.V., Uithoorn, The Netherlands
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Bas Smeulders
Bas Smeulders
Quaker Chemical B.V., Uithoorn, The Netherlands
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Martin Bergmann
Johannes Kepler University Linz, Linz, Upper Austria, Austria
Klaus Zeman
Johannes Kepler University Linz, Linz, Upper Austria, Austria
Alexander Kainz
Johannes Kepler University Linz, Linz, Upper Austria, Austria
Konrad Krimpelstätter
Siemens VAI Metals Technologies GmbH, Linz, Upper Austria, Austria
Dieter Paesold
Voestalpine Stahl GmbH, Linz, Upper Austria, Austria
Peter Schellingerhout
Quaker Chemical B.V., Uithoorn, The Netherlands
Bas Smeulders
Quaker Chemical B.V., Uithoorn, The Netherlands
Paper No:
MSEC2012-7245, pp. 103-112; 10 pages
Published Online:
July 19, 2013
Citation
Bergmann, M, Zeman, K, Kainz, A, Krimpelstätter, K, Paesold, D, Schellingerhout, P, & Smeulders, B. "Mixed Lubrication Model for Cold Rolling Considering the Inlet and Deformation Zones." Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. ASME 2012 International Manufacturing Science and Engineering Conference. Notre Dame, Indiana, USA. June 4–8, 2012. pp. 103-112. ASME. https://doi.org/10.1115/MSEC2012-7245
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