Burnishing is a chipless finishing method, which employs a rolling tool in order to achieve a plastic deformation of the surface layer of metallic parts. Some particular features of this process make it a good cheap alternative for other finishing methods in certain applications. Burnishing of soft metals (up to 45 HRC) has been a field extensiverly studied, unlike burnishing of hard heat-treated steels. This article describes a method of burnishing of hard steel surfaces (about 60 HRC) by means of a hard ball. The related tooling, based on a hydrostatic principle, is also presented. Experiments are exposed, together with the results and conclusions. In this tage, only the roughness was tracked, as a measure of burnishing performance. Influence of main burnishing parameters against final surface roughness is shown in diagrams. As a general conclusion, burnishing of hardened metallic surfaces proved to be a viable alternative for finishing.


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    Title :

    Burnishing versus grinding for automotive parts


    Additional title:

    Prägepolieren gegenüber Schleifen für Automobilteile


    Contributors:


    Publication date :

    2002


    Size :

    8 Seiten, 8 Bilder, 1 Tabelle, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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