Quantification of galling in sheet metal forming by surface topography characterisation.

Jan Lasson Andreasen, Niels Bay, Leonardo De Chiffre

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    Abstract

    One of the major problems in forming of stainless steel sheet is galling due to lubricant film breakdown leading to scoring and bad surface quality In a Danish research programme new lubricants substituting the normally applied chlorinated paraffin oils are being developed and tested for this purpose. In order to determine the limits of lubrication of these new lubricants, as well as commercial ones already available on the market, two sheet forming tests have been developed. Quantification of the degree of galling is done by roughness measurements on the workpiece surface. In a ship reduction test, this is done by 2D profilometry at strip locations corresponding to different sliding lengths, whereas a deep drawing test is based on 3D roughness mapping of local areas. (C) 1998 Elsevier Science Ltd.
    Original languageEnglish
    JournalInternational Journal of Machine Tools and Manufacture
    Volume38
    Issue number5-6
    Pages (from-to)503-510
    ISSN0890-6955
    DOIs
    Publication statusPublished - 1998
    Event7th International Conference on Metrology and Properties of Engineering Surfaces - Gothenburg, Sweden
    Duration: 2 Apr 19974 Apr 1997
    Conference number: 7

    Conference

    Conference7th International Conference on Metrology and Properties of Engineering Surfaces
    Number7
    CountrySweden
    CityGothenburg
    Period02/04/199704/04/1997

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