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Among the very latest advanced carbide grades,          breakage. These factors contribute to reduced
        ISCAR has developed the IC806 grade for                 tool life and high deformation of the cutting edge
        turning and grooving high temperature alloys.           even at low cutting speeds. Another complexity
        ISCAR grade IC806 is a new, complementary               associated with Inconel is its tendency to
        SUMOTEC PVD coated grade for machining                  become malformed; this is due to its metallurgical
        high temperature alloys, especially Inconel 718.        sensitivity to residual stresses and self-hardening
        The microstructure of Inconel 718 consists of an        effects during cutting operations. ISCAR’s aim is
        austenitic structure possessing high tensile and        to effectively machine this unique material, and
        yield strength. The major problems encountered          has therefore successfully developed the IC806.
        when machining Inconel 718 are characterized            This is a submicron grade with TiAlN and ISCAR’s
        by very high temperatures on the cutting edge of        SUMOTEC coating resulting in superior wear
        the insert, this is due to the abrasive elements in     resistant properties. IC806 has a hard submicron
        the materials’ composition (high nickel content of      substrate with PVD coating and a special post
        50-55% and chrome 17-21%), which can cause              coating treatment that provides substantially
        high wear rates, chipping, notching and insert          improved tool life and better reliability.


























































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