High speed machining titanium
Titanium alloys are particularly difficult to machine due to the high degree of reactivity between the cutting tool and the hot metal chips which flow across it. Chipping and breakage of the cutting edge are significant problems in this application. One of the best tool materials to use to machine titanium is an uncoated cemented carbide grade of material. However, because it is uncoated, its application range is limited to low speeds. Some improvements have been achieved by coating this substrate with a PVD TiN coating.
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