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A numerical study on contact condition and wear of roller in cold rolling

Jin, Qichao, Wang, Wenhu, Jiang, Ruisong, Chiu, Louis Ngai Sum, Liu, Di and Yan, Wenyi 2017, A numerical study on contact condition and wear of roller in cold rolling, Metals, vol. 7, no. 9, pp. 1-21, doi: 10.3390/met7090376.

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Title A numerical study on contact condition and wear of roller in cold rolling
Author(s) Jin, Qichao
Wang, Wenhu
Jiang, Ruisong
Chiu, Louis Ngai Sum
Liu, Di
Yan, Wenyi
Journal name Metals
Volume number 7
Issue number 9
Article ID 376
Start page 1
End page 21
Total pages 21
Publisher MDPI AG
Place of publication Basel, Switzerland
Publication date 2017-09-15
ISSN 2075-4701
Keyword(s) cold rolling
contact pressure
local sliding distance
wear
finite element
Science & Technology
Technology
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Materials Science
ROUND PASS SEQUENCE
PRESSURE DISTRIBUTION
STEEL STRIP
SLAB METHOD
SLIP
FRICTION
RADIUS
PREDICTION
PARAMETERS
EVOLUTION
Summary An accurate determination of the contact pressure and local sliding in a cold rolling process is an essential step towards the prediction of the roller’s life due to wear damage. This investigation utilized finite element analysis to quantify the local contact pressure and local sliding over the rolling bite in a plate cold rolling process. It was the first study to quantify the local sliding distance in a rolling process using the Finite Element Analysis (FEA). The numerical results indicate that the local contact pressure over the rolling bite demonstrates a hill profile, and the peak coincides with the neutral plane. The local sliding distance over the rolling bite demonstrates a double-peak profile with the two peaks appearing at the forward slip and backward slip zones respectively. The amplitude of sliding distance in the backward slip zone is larger than that in the forward slip zone. A stick zone was confirmed between the forward slip and backward slip zones. According to a parametric study, the local contact pressure and sliding distance decrease when the thickness reduction is reduced or the diameter of the roller is decreased. The location of the neutral plane always presents at the rolling exit side of the rolling bite’s center. The size of the stick zone enlarges and the sizes of slip zones shrink significantly when the friction coefficient is increased. Finally, a novel concept of wear intensity was defined to examine the wear of the roller based on the local contact pressure and local sliding distance. The results show that a two-peak wear response exists in the backward and forward slip zones. The magnitude of the wear in the backward slip zone is larger than that in the forward slip zone. For a given roller and blank material combination, using a smaller thickness reduction, a smaller diameter roller and a higher friction coefficient condition can reduce the wear of the roller for a single rolling cycle. The current paper develops an understanding of rolling contact responses to the wear of the roller in rolling process. The research method can also be applied to study other rolling or sliding wear problems.
Language eng
DOI 10.3390/met7090376
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30102794

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.