In orbital drilling the tool (special end mill) moves relative to the workpiece on a helical course. Because of the three dimensional tool path and the superimposed rotary cutting motion a complex machining motion results which determines the contact conditions of the tool. In the aircraft industry this process is used for cutting composite materials (CFRP/Aluminum) with automated drill and rivet machines, for example in the manufacturing of flap tracks and vertical tail planes. A key problem in the industrial manufacturing of closed structures is the cap and the burr formation on the bore exit side. All caps and chips must be able to remove by vacuum, in addition a minimum burr height is required. The objective of this study is to describe the effects of orbital drilling on cap and burr formation in the exit composite material, primed clad aluminum 2024. The influence on cap and burr formation with different tool geometries, different coatings, different cutting parameters, tool wear and minimum quantity lubrication were examined.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Burr and cap formation by orbital drilling of aluminum


    Weitere Titelangaben:

    Grat- und Kappenbildung beim Orbitalbohren von Aluminium


    Beteiligte:
    Brinksmeier, E. (Autor:in) / Fangmann, S. (Autor:in)


    Erscheinungsdatum :

    2009


    Format / Umfang :

    15 Seiten, 31 Bilder, 15 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    An experimental study of interfacial burr formation in drilling of stacked aluminum sheets

    Newton, Thomas R. / Morehouse, John / Melkote, Shreyes N. et al. | Tema Archiv | 2008


    Interfacial burr formation in drilling of stacked aerospace materials

    Melkote, S.N. / Newton, T.R. / Hellstern, C. et al. | Tema Archiv | 2009


    Drilling burr characterization using semantic differential method

    Wei,K.C. / Furness,R.J. / Ford Motor,US | Kraftfahrwesen | 1996


    Understanding Exit Burr in the Drilling Process

    Nichol, William | SAE Technical Papers | 2001


    Drilling Burr Characterization Using Semantic Differential Method

    Wei, Kuang C. / Furness, Richard J. | SAE Technical Papers | 1996