Journal of the Japan Society for Technology of Plasticity
Online ISSN : 1882-0166
Print ISSN : 0038-1586
ISSN-L : 0038-1586
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Characteristics of Skinpass Rolling with Dull-Finished Work Roll of Sheet Gauge Cold Rolled Steel Strip
Toshiyuki SHIRAISHITooru AKASHIYoshiki TAKAHAMAShigeru OGAWA
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2012 Volume 53 Issue 616 Pages 450-456

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Abstract

A skinpass rolling experiment using a dull-finished work roll of commercial-scale diameter has been performed on cold rolled strips with various steel grades to clarify the characteristics of roll force behavior and the transcription of material surface roughness. The effects of elongation, tension, lubrication and work roll diameter on rolling load and material surface roughness have been investigated for various steel grades, elongations given by rolling, lubrication conditions of rolling, entry and delivery tensions, and work roll diameters. The results show that steel grade, elongation, tension, especially delivery tension, and work roll diameter have significant effects on rolling load.The effect of lubrication conditions becomes notable for 1% elongation or more. The transcription of roll surface roughness to a material surface is enhanced with higher rolling load and larger elongation. Hence,if sufficient elongation is given by rolling, the control of the surface roughness of high-strength materials becames easier.

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© 2012 The Japan Society for Technology of Plasticity
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