Coated cutting tool insert

xy23The present invention relates to a CVD-coated cutting tool insert with a TiCN-layer with a low tensile stress level of from about 50 to about 390 MPa and an α-AlO-layer with a high surface smoothness with a mean Ra<0.12 μm as measured by AFM-technique. This is obtained by subjecting the coati...

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Bibliographic Details
Main Authors Littecke, Peter, Ljungberg, Björn
Format Patent
LanguageEnglish
Published 27.11.2012
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Summary:xy23The present invention relates to a CVD-coated cutting tool insert with a TiCN-layer with a low tensile stress level of from about 50 to about 390 MPa and an α-AlO-layer with a high surface smoothness with a mean Ra<0.12 μm as measured by AFM-technique. This is obtained by subjecting the coating to an intensive wet blasting operation.