The Investigation of the Influence of Friction and Roll Calibration on the Pipe Formation during Plug Rolling

Dmitry Pavlov; Aleksandr Bogatov; E.A. Pavlova

doi:10.4028/www.scientific.net/SSP.284.552

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The Investigation of the Influence of Friction and Roll Calibration on the Pipe Formation during Plug Rolling

Abstract:

The influence of the friction coefficient and roll calibration on the pipe formation during longitudinal rolling on a short mandrel was investigated using the FEM simulation. The study was carried out for three different roll calibrations: hexagonal, dodecahedral, dioctahedral. Pipe formation was also studied using the Siebel index of friction in the range from 0.1 to 1. The effect of the friction coefficient ψ on the dimensionless parameter determining the shape change was determined, as well as the wall thickness deviation and the “guide mark” defect formation on the inner surface of the pipes. The values of a dimensionless parameter characterizing the appearance of a “guide mark” defect on the inner surface of pipes are determined.

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Periodical:

Solid State Phenomena (Volume 284)

Pages:

552-556

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.284.552

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Online since:

October 2018

Authors:

Dmitry Pavlov*, Aleksandr Bogatov, E.A. Pavlova

Keywords:

Automatic Tandem Mill, Finite Element Modeling, Friction Coefficient, Longitudinal “Guide Mark” Defect, Roll Calibration, Short Mandrel

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References

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