Multilayer film-coated member and method for producing it
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United States of America Patent
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Nov 13, 2012
Grant Date -
Apr 1, 2010
app pub date -
Jul 29, 2009
filing date -
Jul 31, 2008
priority date (Note) -
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Abstract
The invention provides a multilayer film-coated member having sufficient heat resistance and abrasion resistance and capable of exhibiting an effect of preventing adhesion even in cutting work of steel materials that may readily cause adhesion to cutting tools, and therefore capable of prolonging tools, and provides a method for producing it. The multilayer film-coated member is fabricated by coating the surface of a substrate with at least two hard coating films having different compositions, in which the first composition hard coating film of the outermost layer of the hard coating films represented by SiaBbNcCdOe with a+b+c+d+e=1, 0.1≦a≦0.5, 0.01≦b≦0.2, 0.05≦c≦0.6, 0.1≦d≦0.7 and 0
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