Experimental investigation of pinching phenomena in cold rolling of thin steel sheets

A. Cometa, H. J.M. Geijselaers, A. H. Van Den Boogaard, D. J. Wentink, C. W.J. Hol, L. J.M. Jacobs, L. Kampmeijer

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

During rolling of metal sheets defects may occur, such as local waviness, surface ruptures, and sometimes strip breaks. These phenomena, commonly referred to as 'pinching', have been observed in combination with snaking problems (strip sidewards movements) during tailing out, but even in continuous rolling processes. Severe pinches compromise the quality of the strip and damage to the work rolls can also be caused. This clearly affects the production, resulting in low product quality, process delays and, consequently, in extra costs. Even though pinching is a widely experienced issue, during both hot and cold rolling, it is not clear what mechanism is behind it. Pinches occur due to disruptions in the rolling process, therefore pinching sensitive operative regimes need to be identified such that mill operations can be performed in a way that keeps the process stable. Currently, pinching cannot be predicted by rolling simulation models due to the lack of knowledge about the circumstances leading to pinches. Therefore, rolling experiments were performed at the pilot mill in Tata Steel (IJmuiden), in order to understand under which process conditions pinches are more likely to occur. It is shown that pinching phenomena can be created in a single-stand mill, being triggered by perturbations introduced during the steady-state rolling process. Specifically, the lubrication level has been detected as an underlying factor, playing a role in the occurrence of these phenomena. An extensive characterization of pinching defects is provided within the field of metal rolling. Furthermore, part of a possible mechanism for pinches is discussed, based on the experimental evidence of the pinching tests. The aim of this work is to contribute to a more fundamental understanding of pinching, as a crucial step towards the prediction of these defects.

Original languageEnglish
Title of host publicationProceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019
EditorsPedro Arrazola, Eneko Saenz de Argandona, Nagore Otegi, Joseba Mendiguren, Mikel Saez de Buruaga, Aitor Madariaga, Lander Galdos
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735418479
DOIs
Publication statusPublished - 2 Jul 2019
Event22nd International Conference on Material Forming 2019 - Votoria-Gasteiz, Spain
Duration: 8 May 201910 May 2019
Conference number: 22
https://esaform2019.mondragon.edu/en/home

Publication series

NameAIP Conference Proceedings
Volume2113
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference22nd International Conference on Material Forming 2019
Abbreviated titleESAFORM 2019
CountrySpain
CityVotoria-Gasteiz
Period8/05/1910/05/19
Internet address

Fingerprint

cold rolling
steel
defect
mill
steels
metal
strip
tailings
rupture
perturbation
defects
damage
lateral oscillation
metals
prediction
cost
metal sheets
simulation
cold
lubrication

Cite this

Cometa, A., Geijselaers, H. J. M., Van Den Boogaard, A. H., Wentink, D. J., Hol, C. W. J., Jacobs, L. J. M., & Kampmeijer, L. (2019). Experimental investigation of pinching phenomena in cold rolling of thin steel sheets. In P. Arrazola, E. Saenz de Argandona, N. Otegi, J. Mendiguren, M. Saez de Buruaga, A. Madariaga, & L. Galdos (Eds.), Proceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019 [040026] (AIP Conference Proceedings; Vol. 2113). American Institute of Physics. https://doi.org/10.1063/1.5112560
Cometa, A. ; Geijselaers, H. J.M. ; Van Den Boogaard, A. H. ; Wentink, D. J. ; Hol, C. W.J. ; Jacobs, L. J.M. ; Kampmeijer, L. / Experimental investigation of pinching phenomena in cold rolling of thin steel sheets. Proceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019. editor / Pedro Arrazola ; Eneko Saenz de Argandona ; Nagore Otegi ; Joseba Mendiguren ; Mikel Saez de Buruaga ; Aitor Madariaga ; Lander Galdos. American Institute of Physics, 2019. (AIP Conference Proceedings).
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title = "Experimental investigation of pinching phenomena in cold rolling of thin steel sheets",
abstract = "During rolling of metal sheets defects may occur, such as local waviness, surface ruptures, and sometimes strip breaks. These phenomena, commonly referred to as 'pinching', have been observed in combination with snaking problems (strip sidewards movements) during tailing out, but even in continuous rolling processes. Severe pinches compromise the quality of the strip and damage to the work rolls can also be caused. This clearly affects the production, resulting in low product quality, process delays and, consequently, in extra costs. Even though pinching is a widely experienced issue, during both hot and cold rolling, it is not clear what mechanism is behind it. Pinches occur due to disruptions in the rolling process, therefore pinching sensitive operative regimes need to be identified such that mill operations can be performed in a way that keeps the process stable. Currently, pinching cannot be predicted by rolling simulation models due to the lack of knowledge about the circumstances leading to pinches. Therefore, rolling experiments were performed at the pilot mill in Tata Steel (IJmuiden), in order to understand under which process conditions pinches are more likely to occur. It is shown that pinching phenomena can be created in a single-stand mill, being triggered by perturbations introduced during the steady-state rolling process. Specifically, the lubrication level has been detected as an underlying factor, playing a role in the occurrence of these phenomena. An extensive characterization of pinching defects is provided within the field of metal rolling. Furthermore, part of a possible mechanism for pinches is discussed, based on the experimental evidence of the pinching tests. The aim of this work is to contribute to a more fundamental understanding of pinching, as a crucial step towards the prediction of these defects.",
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Cometa, A, Geijselaers, HJM, Van Den Boogaard, AH, Wentink, DJ, Hol, CWJ, Jacobs, LJM & Kampmeijer, L 2019, Experimental investigation of pinching phenomena in cold rolling of thin steel sheets. in P Arrazola, E Saenz de Argandona, N Otegi, J Mendiguren, M Saez de Buruaga, A Madariaga & L Galdos (eds), Proceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019., 040026, AIP Conference Proceedings, vol. 2113, American Institute of Physics, 22nd International Conference on Material Forming 2019, Votoria-Gasteiz, Spain, 8/05/19. https://doi.org/10.1063/1.5112560

Experimental investigation of pinching phenomena in cold rolling of thin steel sheets. / Cometa, A.; Geijselaers, H. J.M.; Van Den Boogaard, A. H.; Wentink, D. J.; Hol, C. W.J.; Jacobs, L. J.M.; Kampmeijer, L.

Proceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019. ed. / Pedro Arrazola; Eneko Saenz de Argandona; Nagore Otegi; Joseba Mendiguren; Mikel Saez de Buruaga; Aitor Madariaga; Lander Galdos. American Institute of Physics, 2019. 040026 (AIP Conference Proceedings; Vol. 2113).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AU - Geijselaers, H. J.M.

AU - Van Den Boogaard, A. H.

AU - Wentink, D. J.

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AU - Jacobs, L. J.M.

AU - Kampmeijer, L.

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N2 - During rolling of metal sheets defects may occur, such as local waviness, surface ruptures, and sometimes strip breaks. These phenomena, commonly referred to as 'pinching', have been observed in combination with snaking problems (strip sidewards movements) during tailing out, but even in continuous rolling processes. Severe pinches compromise the quality of the strip and damage to the work rolls can also be caused. This clearly affects the production, resulting in low product quality, process delays and, consequently, in extra costs. Even though pinching is a widely experienced issue, during both hot and cold rolling, it is not clear what mechanism is behind it. Pinches occur due to disruptions in the rolling process, therefore pinching sensitive operative regimes need to be identified such that mill operations can be performed in a way that keeps the process stable. Currently, pinching cannot be predicted by rolling simulation models due to the lack of knowledge about the circumstances leading to pinches. Therefore, rolling experiments were performed at the pilot mill in Tata Steel (IJmuiden), in order to understand under which process conditions pinches are more likely to occur. It is shown that pinching phenomena can be created in a single-stand mill, being triggered by perturbations introduced during the steady-state rolling process. Specifically, the lubrication level has been detected as an underlying factor, playing a role in the occurrence of these phenomena. An extensive characterization of pinching defects is provided within the field of metal rolling. Furthermore, part of a possible mechanism for pinches is discussed, based on the experimental evidence of the pinching tests. The aim of this work is to contribute to a more fundamental understanding of pinching, as a crucial step towards the prediction of these defects.

AB - During rolling of metal sheets defects may occur, such as local waviness, surface ruptures, and sometimes strip breaks. These phenomena, commonly referred to as 'pinching', have been observed in combination with snaking problems (strip sidewards movements) during tailing out, but even in continuous rolling processes. Severe pinches compromise the quality of the strip and damage to the work rolls can also be caused. This clearly affects the production, resulting in low product quality, process delays and, consequently, in extra costs. Even though pinching is a widely experienced issue, during both hot and cold rolling, it is not clear what mechanism is behind it. Pinches occur due to disruptions in the rolling process, therefore pinching sensitive operative regimes need to be identified such that mill operations can be performed in a way that keeps the process stable. Currently, pinching cannot be predicted by rolling simulation models due to the lack of knowledge about the circumstances leading to pinches. Therefore, rolling experiments were performed at the pilot mill in Tata Steel (IJmuiden), in order to understand under which process conditions pinches are more likely to occur. It is shown that pinching phenomena can be created in a single-stand mill, being triggered by perturbations introduced during the steady-state rolling process. Specifically, the lubrication level has been detected as an underlying factor, playing a role in the occurrence of these phenomena. An extensive characterization of pinching defects is provided within the field of metal rolling. Furthermore, part of a possible mechanism for pinches is discussed, based on the experimental evidence of the pinching tests. The aim of this work is to contribute to a more fundamental understanding of pinching, as a crucial step towards the prediction of these defects.

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A2 - Saenz de Argandona, Eneko

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Cometa A, Geijselaers HJM, Van Den Boogaard AH, Wentink DJ, Hol CWJ, Jacobs LJM et al. Experimental investigation of pinching phenomena in cold rolling of thin steel sheets. In Arrazola P, Saenz de Argandona E, Otegi N, Mendiguren J, Saez de Buruaga M, Madariaga A, Galdos L, editors, Proceedings of the 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019. American Institute of Physics. 2019. 040026. (AIP Conference Proceedings). https://doi.org/10.1063/1.5112560