Hard film for machining tools and hard film-coated metal machining tool

US2016017478A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016017478-A1
Application numberUS-201314775419-A
CountryUS
Kind codeA1
Filing dateMar 28, 2013
Priority dateMar 28, 2013
Publication dateJan 21, 2016
Grant date

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A tool hard film that is to be disposed as coating on a surface of a tool, the tool hard film being a TiCrMoWV oxycarbide, oxynitride, or oxycarbonitride having a phase with a NaCl-type crystal structure as a main phase, the oxycarbide, oxynitride, or oxycarbonitride having fine crystals due to introduction of oxygen.

First claim

Opening claim text (preview).

1 . A tool hard film that is to be disposed as coating on a surface of a tool, the tool hard film being a TiCrMoWV oxycarbide, oxynitride, or oxycarbonitride having a phase with a NaCl-type crystal structure as a main phase, the oxycarbide, oxynitride, or oxycarbonitride having fine crystals due to introduction of oxygen. 2 . The tool hard film of claim 1 , wherein the TiCrMoWV oxycarbide is represented by (Ti a Cr b Mo c W d V e ) 1-x-y C x O y , and wherein atom ratios thereof are 0.2≦a≦0.7, 0.01≦b≦0.4, 0.05≦c≦0.5, 0<d≦0.05, 0<e=1-a-b-c-d≦0.05, 0.3≦x+y≦0.6, and 0<y≦0.15. 3 . The tool hard film of claim 1 , wherein the TiCrMoWV oxycarbonitride is represented by (Ti a Cr b Mo c W d V e ) 1-x-y-z C x N y O z , and wherein atom ratios thereof are 0.2≦a≦0.7, 0.01≦b≦0.4, 0.05≦c≦0.5, 0<d≦0.05, 0<e=1-a-b-c-d≦0.05, 0.3≦x+y+z≦0.6, 0<y≦0.5, and 0<z≦0.15. 4 . The tool hard film of claim 1 , wherein the TiCrMoWV oxynitride is represented by (Ti a Cr b Mo c W d V e ) 1-x-y N x O y , and wherein atom ratios thereof are 0.2≦a≦0.7, 0.01≦b≦0.4, 0.05≦c≦0.5, 0<d≦0.05, 0<e=1-a-b-c-d≦0.05, 0.3≦x+y≦0.6, and 0<y≦0.15. 5 . The tool hard film of claim 1 , wherein the tool hard film has a crystal grain diameter of 100 nm or less. 6 . The tool hard film of claim 1 , wherein the tool hard film is a 0.2 to 10.0 μm thick single layer coating the surface of the tool. 7 . A hard-film-coated metal machining tool having the tool hard film of claim 1 disposed as coating on a surface of the tool.

Assignees

Inventors

Classifications

  • characterised by the coating material ({C23C14/0021} , C23C14/04 take precedence) · CPC title

  • Carbides · CPC title

  • Nitrides (C23C14/0617 takes precedence) · CPC title

  • Oxynitrides · CPC title

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What does patent US2016017478A1 cover?
A tool hard film that is to be disposed as coating on a surface of a tool, the tool hard film being a TiCrMoWV oxycarbide, oxynitride, or oxycarbonitride having a phase with a NaCl-type crystal structure as a main phase, the oxycarbide, oxynitride, or oxycarbonitride having fine crystals due to introduction of oxygen.
Who is the assignee on this patent?
Sakurai Masatoshi, Wang Mei, OHCHI Toshihiro, and 5 more
What technology area does this patent fall under?
Primary CPC classification C23C14/0676. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jan 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).