Roll-pressure distribution and coefficient of friction in hot rolling by caustics

Theocaris, PS; Stassinakis, CA; Mamalis, AG

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Stassinakis, CA	en
dc.contributor.author	Mamalis, AG	en
dc.date.accessioned	2014-03-01T01:06:12Z
dc.date.available	2014-03-01T01:06:12Z
dc.date.issued	1983	en
dc.identifier.issn	0020-7403	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9222
dc.subject	Coefficient of Friction	en
dc.subject	Pressure Distribution	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	ROLLS - Friction	en
dc.subject.other	ROLLING MILL PRACTICE	en
dc.title	Roll-pressure distribution and coefficient of friction in hot rolling by caustics	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0020-7403(83)90065-6	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0020-7403(83)90065-6	en
heal.language	English	en
heal.publicationDate	1983	en
heal.abstract	The optical method of reflected caustics was employed to investigate the variation of the coefficient of friction in the roll gap during strip rolling. Experiments have been carried out on an experimental rolling mill, using lead at room temperature, to obtain quantitative information about pressure distribution and friction, relevant to hot rolling, i.e. when frictional effects are pronounced. The rolls were made of Plexiglas. The normal and tangential pressure distribution and thence the coefficient of friction along the arc of contact at the outer edge of the strip were calculated from the caustic curves formed due to elastic deformation of the rolls, although the rolled strip was deformed plastically. An almost linear decrease of the friction coefficient from a maximum value, at the entry plane to the roll gap. to zero at the neutral plane and then a parabolic, tending to linear, increase of it, towards the exit plane, were predicted, in contradiction to what is up-to-now accepted in the praxis, that the friction coefficient remains constant during hot rolling. © 1983.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Mechanical Sciences	en
dc.identifier.doi	10.1016/0020-7403(83)90065-6	en
dc.identifier.isi	ISI:A1983RT78100006	en
dc.identifier.volume	25	en
dc.identifier.issue	11	en
dc.identifier.spage	833	en
dc.identifier.epage	844	en