The influence of rolling mill process parameters on roll thermal fatigue

The influence of rolling mill process parameters on roll thermal fatigue

This study analyzes the impact of operational parameters of hot rolling mill in the degradation process of a roll surface by thermal fatigue. A methodology was developed to determine a coefficient that could identify when operational parameters become crucial to initiate this degradation process. Th...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology Vol. 102; no. 5-8; pp. 2159 - 2171
Main Authors: Weidlich, Felipe, Braga, Ana Paola Villalva, da Silva Lima, Luiz Gustavo Del Bianchi, Júnior, Mário Boccalini, Souza, Roberto Martins
Format: Journal Article
Language:English
Published: London Springer London 01-06-2019
Springer Nature B.V
Subjects:
CAE) and Design
Coefficients
Computer-Aided Engineering (CAD
Crack propagation
Damage
Degradation
Engineering
Fatigue failure
Hot rolling
Hot rolling mills
Impact analysis
Industrial and Production Engineering
Mechanical Engineering
Media Management
Original Article
Parameter identification
Plastic deformation
Process parameters
Rolling mills
Steel industry
Thermal fatigue
Rolling mill rolls
Rolling parameters
Thermal fatigue
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Summary:This study analyzes the impact of operational parameters of hot rolling mill in the degradation process of a roll surface by thermal fatigue. A methodology was developed to determine a coefficient that could identify when operational parameters become crucial to initiate this degradation process. This new coefficient, named the surface damage coefficient ( κ ) , is correlated with the calculated plastic strain, allowing inclusion in a model to predict the roll life. Experiments were conducted in three industrial rolling mills, and the results showed that for a κ value above 375, it is possible to identify failure by thermal fatigue, while values below this limit indicate that other damage mechanisms predominate.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-019-03293-1