Transducer for measuring normal and friction stress in contact zone during rolling

Poul Henningsen, Tarras Wanheim, Mogens Arentoft

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    For the cold rolling process, knowledge about interface conditions is important since it directly influences the maximum reduction ratio and thereby the number of steps required for a given reduction. The mechanical properties of the produced sheet and the surface quality are also influenced by the friction conditions. To achieve this important information, measurements of the normal pressure and friction stresses in the deformation zone are requested. The interface conditions are analyzed by several authors [1-8] The direction of the friction stress is changing during the rolling gap. At the entrance of the deformation zone, the peripherical velocity of the roll is higher than for the incoming material, which causes frictional stresses at the material acting in the rolling direction. At the outlet of the rolling gap, the velocity of the deformed material exceeds the velocity of the roll, generating frictional stresses contrary to the direction of rolling. In a narrow area in the deformation zone, the velocity of the deformed material is equal to the velocity of the rolls. This area or line is named “neutral line”[2]. The position of the neutral line depends on friction, reduction ratio, diameter of the rolls, and width of the sheet.
    Original languageEnglish
    Title of host publicationProc. of the Int. Steelmaking Conf. 2004
    PublisherInstitut for Produktion og Ledelse, DTU
    Publication date2004
    Publication statusPublished - 2004
    EventInt. Steelmaking Conf. 2004 - Paris, Dec. 10, 2004
    Duration: 5 Nov 1829 → …


    ConferenceInt. Steelmaking Conf. 2004
    CityParis, Dec. 10, 2004
    Period05/11/1829 → …


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