Hard metal wearing part with mixed oxide coating
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United States of America Patent
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Apr 27, 2004
Issued Date -
N/A
app pub date -
Feb 5, 2002
filing date -
Feb 9, 2001
priority date (Note) -
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Abstract
The wearing part, such as a cutting insert, is made from hard metal or cermet. A hard-material coating is applied on the base material. The coating includes a single-layer or multilayer mixed-oxide coat, predominantly comprising Al.sub.2 O.sub.3, in which defined proportions of titanium oxide and boron oxide are dissolved or homogeneously distributed extremely finely. The wearing part is distinguished by a high wear resistance, which improves the service life, and a fine-grained structure and uniformity of the coat and by a highly economic application of the coat.
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