Veränderungen in der Glasoberfläche. Martens-Ritzhärtemeßgerät. Glasscherspäne. Brüche und Risse in der Glasoberfläche. Fließspanbildung an der Diamantspitze, plastisches Verhalten von Glas.

    The film shows the changes occurring in the surface of glass which is machined by means of cutting tools. The investigation was carried out with a scratching device having a similar mode of action to the Martens scratch hardness tester. When the whole of the cutting width of the diamond tool is engaged, short, easily breaking continuous chips of glass are then produced. As the load is increased, fractures and cracks appear in the surface of the glass. Flow chips are formed if the diamond tool is adjusted to a sharp pointed edge. Continuous glass chips of up to 8 mm in length may be produced, which do not tear off at the point of cutting. In this fashion, the plastic behaviour of glass at the microscopic level is demonstrated in a spectucular fashion.


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    Title :

    Zerspanen von Glas mit Diamantschneidwerkzeug - Spanbildung beim Ritzen


    Subtitle :

    Documentation/Report


    Additional title:

    Cutting of Glass with a Diamond Cutting Tool - Chip Formation in Scratching


    Contributors:

    Publication date :

    1968-01-01


    Size :

    50MB, 00:05:09:00


    Remarks:

    Stummfilm
    Silent movie



    Type of media :

    Audio-visual


    Type of material :

    Audio-visual


    Language :

    Unknown





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