This work analysed the role of friction and other process parameters on strip edge drop and width variations during cold rolling of flat steel strips. Comparisons of 3D numerical simulations with experimental datas from rolling trials have shown that roll bite friction is anisotropic: friction in the transverse direction is twice to four times higher than that in the rolling direction. Work roll circumferential grinding striations and the associated roll roughness anisotropy are considered to be responsible for this anisotropy. Moreover by modifying friction anisotropy (decrease of transverse friction for the same longitudinal friction), it is possible to compensate for width narrowing usually observed on commercial cold mills (narrowing is due to strip thermal contractions in the mill interstands). Therefore, friction appears as a suitable process actuator for control of cold rolled product dimensions.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4201-0
PROCEEDINGS PAPER
Anisotropic Friction in Cold Rolling of Flat Steel Strips
N. Legrand,
N. Legrand
Arcelor Research, Mazie`res-les-Metz, France
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B. Becker
B. Becker
Arcelor Research, Mazie`res-les-Metz, France
Search for other works by this author on:
N. Legrand
Arcelor Research, Mazie`res-les-Metz, France
B. Becker
Arcelor Research, Mazie`res-les-Metz, France
Paper No:
WTC2005-63986, pp. 383-384; 2 pages
Published Online:
November 17, 2008
Citation
Legrand, N, & Becker, B. "Anisotropic Friction in Cold Rolling of Flat Steel Strips." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 1. Washington, D.C., USA. September 12–16, 2005. pp. 383-384. ASME. https://doi.org/10.1115/WTC2005-63986
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