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http://dx.doi.org/10.14775/ksmpe.2017.16.4.038

Study on Failure in Outer Ring of Work Roll Bearing in Hot Rod Rolling Mill  

Byon, Sang-Min (Department of Mechanical Engineering, DONG-A UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.4, 2017 , pp. 38-45 More about this Journal
Abstract
A finite element analysis-based approach which investigates the causes of the breakdown in the outer ring of the choke at hot rod rolling mill is presented. Two-dimensional drawings of the whole vertical-type mill stand are transformed into three-dimensional CAD models. Non-linear elasto-plastic deformation analysis of material at the roll gap is performed for computing roll force and torque of the work roll. Then, the reaction forces of the bearing rings together with a set of roller bearings that support the work roll are obtained by means of rigid body motion analysis. Finally, stress behaviors in the bearing rings together with a set of roller bearings that support the work roll are investigated by linear elastic analysis. Results reveal that stress at the contact area between the outer ring and roller bearing is extraordinary high when an internal gap between an external surface of the outer ring and the internal surface of the chock due to wear of the inside of the chock occurs.
Keywords
Rod Rolling Mill; Bearing; Outer Ring; Failure;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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