Excellent surface finishes and tolerances are achieved using two formulations. Solution A gives finish of 3.17 micrometers after milling at 57 to 63 deg C. Constituents of A are: Hydrofluoric acid (70%), 5,8 oz/gal; nitric acid (40-42) degrees Baume), 40 oz/gal. Alternative solution gives 2.16 micrometer finish, and differs from A by addition of 7% phosphoric acid. Formulations eliminate channeling at root fillets, dishing, island formation, and overhangs.


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    Title :

    Chemical-milling solution for invar alloy


    Contributors:
    Batiuk, W. (author)

    Published in:

    Publication date :

    1980-08-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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