Diamond coated tool

The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base ma...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Yoshida Katsuhito, Seki Yuichiro, Meguro Kiichi, Matsukawa Shinji, Yoshida Shigeru
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention provides a diamond coated tool which is resistant to exfoliation at an interface between a base material and a diamond layer. The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 μm and not more than 10 μm and an average length of roughness profile elements RSm of not less than 1 μm and not more than 100 μm, and that the diamond layer has a plurality of cavities extending from a portion bordering on the base material in a crystal growth direction.