WO2013015302A1 - 切削工具 - Google Patents
切削工具 Download PDFInfo
- Publication number
- WO2013015302A1 WO2013015302A1 PCT/JP2012/068793 JP2012068793W WO2013015302A1 WO 2013015302 A1 WO2013015302 A1 WO 2013015302A1 JP 2012068793 W JP2012068793 W JP 2012068793W WO 2013015302 A1 WO2013015302 A1 WO 2013015302A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating layer
- rake face
- droplets
- face
- cutting tool
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/148—Composition of the cutting inserts
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0664—Carbonitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/042—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/40—Coatings including alternating layers following a pattern, a periodic or defined repetition
- C23C28/42—Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by the composition of the alternating layers
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/08—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner applied by physical vapour deposition [PVD]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/10—Coatings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition
Definitions
- the present invention relates to a cutting tool having a coating layer formed on the surface of a substrate.
- sintered alloys such as cemented carbide and cermet, diamond, and cBN (cubic boron nitride)
- a method of improving the wear resistance, slidability, and fracture resistance by forming a coating layer on the surface of a high-hardness sintered body and a substrate made of a ceramic such as alumina or silicon nitride is used.
- a nitride layer mainly composed of Ti or Al has been actively studied by using an arc ion plating method or a sputtering method as the above physical vapor deposition method, and improvements for extending the tool life are continued. .
- These surface-coated tools have been devised in addition to the covering material elements in order to cope with changes in the cutting environment such as an increase in cutting speed and diversification of work materials.
- Patent Document 1 describes that in a surface-coated tool in which a surface of a base is coated with a coating such as TiAlN, the ratio of Ti is made higher on the flank than on the rake face.
- a TiAlN-based hard coating having a thickness of 1 to 5 ⁇ m is formed on the surface of a substrate, and coarse particles having a size larger than the thickness present in the hard coating are 5 area% or less.
- the surface roughness Ra is 0.1 ⁇ m or less, or the surface roughness Rz is 1 ⁇ m or less.
- Patent Document 3 discloses that a coating film made of a composition such as (AlCrV) N is formed on the surface of the base material and that macro particles present on the surface of the coating film are reduced.
- the present invention is for solving the above-mentioned problems, and an object of the present invention is to provide a cutting tool provided with a coating layer capable of exhibiting optimum cutting performance locally.
- Cr a M 1-a (C 1-x N x ) (where M is Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr and Y At least one selected from the group consisting of 0.01 ⁇ a ⁇ 0.5 and 0 ⁇ x ⁇ 1), and has a cutting edge at the intersecting ridge line between the rake face and the flank face
- droplets are present on the surface of the coating layer, and the average composition of the droplets present on the rake face is higher than the average composition of the droplets present on the flank face.
- the cutting tool of the present invention there are droplets on the surface of the coating layer covering the substrate, but even if the chips pass on the rake face during cutting, the chips are caused by the presence of the droplets having a high Cr content.
- the surface of the coating layer does not become so hot without sticking to the rake face.
- the rake face has a higher Cr content than the flank face, the droplets present on the rake face have high lubricity, and the frictional resistance with the chips can be reduced. Since the Cr ratio in the inside is small, it disappears early, and the finished surface state during processing is improved.
- FIG. 2 shows an example of the cutting tool of the present invention, (a) a schematic perspective view, and (b) an XX sectional view of (a).
- FIG. 1 ((a) schematic perspective view, (b) (XX) sectional view of (a)), which is a preferred embodiment example of the cutting tool of the present invention.
- a cutting tool 1 has a rake face 3 on a main surface, a flank face 4 on a side face, and a cutting edge 5 on a cross ridge line between the rake face 3 and the flank face 4.
- the coating layer 6 is formed.
- Cr a M 1-a (C 1-x N x ) (where M is selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr and Y) 1 type, 0.01 ⁇ a ⁇ 0.5, 0 ⁇ x ⁇ 1) is coated, and the surface of the coating layer 6 is called a droplet 7 as shown in FIG.
- the average composition of the droplets 7 existing on the rake face 3 has a higher Cr content ratio than the average composition of the droplets 7 existing on the flank face 4.
- the average composition of the droplets existing on the rake face 3 and the flank face 4 in the present invention is observed in the rake face 3 and the flank face 4 under a microscope, and is present in an arbitrary region of one field of view 10 ⁇ m ⁇ 10 ⁇ m.
- the composition of each droplet having a diameter of 0.3 ⁇ m or more is measured by energy dispersive spectroscopy (EDS), and the average value thereof is indicated.
- the presence of the droplets 7 prevents the chips from sticking to the rake face and the surface of the coating layer 6 does not become so hot.
- the rake face 3 has a higher Cr content in the droplets 7 than the flank face 4
- the droplets 7 existing on the rake face 3 have high lubricity and the cutting fluid is applied to the coating layer 6.
- the flank 4 has a low Cr content in the droplet 7 and disappears at an early stage, thereby improving the finished surface state during processing.
- the covering layer 6 preferably contains at least one of Ti and Al as M as an essential component in the above composition formula. Thereby, the hardness and toughness of the coating layer 6 can be increased, and the wear resistance and fracture resistance of the cutting tool 1 are improved. Further, the desirable composition of the covering layer 6 includes Ti as an essential component for M, Ti and Al as essential components for M, and further selected from Si, W, Mo, Ta, Hf, Nb, Zr and Y. It is preferable to contain at least one kind (M ′).
- the coating layer 6 has a high oxidation start temperature, high oxidation resistance, can reduce internal stress, and has high fracture resistance.
- the coating layer 6 has high wear resistance and fracture resistance under difficult cutting conditions such as machining of difficult-to-cut materials, dry cutting, and high-speed cutting. It will be excellent.
- a (metal Cr composition ratio) when a (metal Cr composition ratio) is smaller than 0.01 in the coating layer 6, the oxidation resistance and lubricity of the coating layer 6 are lowered.
- a (metallic Cr composition ratio) is larger than 0.5, the wear resistance of the coating layer 6 is lowered.
- a particularly desirable range for a is 0.04 ⁇ d ⁇ 0.15.
- b (Ti composition ratio) is 0.3 or more, the crystal structure of the coating layer 6 does not change from a cubic crystal to a hexagonal crystal, and the hardness is high and the wear resistance is high.
- b (Ti composition ratio) is 0.8 or less, the coating layer 6 has high oxidation resistance and heat resistance.
- a particularly desirable range of b is 0.45 ⁇ a ⁇ 0.5.
- c Al composition ratio
- d metal M composition ratio
- the metal M ′ is at least one selected from Si, W, Mo, Ta, Hf, Nb, Zr, and Y. Among them, the inclusion of Si or W is desirable from the viewpoint of excellent hardness, and Nb or Mo It is desirable to contain N from the viewpoint of excellent wear resistance and oxidation resistance.
- C and N which are non-metallic components of the coating layer 6 are excellent in hardness and toughness required for a cutting tool, and a particularly desirable range of x (N composition ratio) is 0.9 ⁇ x ⁇ 1. .
- the composition of the coating layer 6 can be measured by energy dispersive X-ray spectroscopy (EDX) or X-ray photoelectron spectroscopy (XPS).
- the Cr content ratio Cr DR of the droplet 7 formed on the surface of the rake face 3 of the coating layer 6 is 1.05 ⁇ the Cr content ratio Cr DF of the droplet 7 formed on the surface of the flank 4. It is desirable that Cr DR / Cr DF ⁇ 1.60 in that both wear resistance on the rake face 3 and the flank face 4 can be optimized.
- the number of droplets 7 present is 15 to 50, preferably 18 to 30 droplets of 10 ⁇ m ⁇ 10 ⁇ m square on the rake face 3 and 0.3 ⁇ m or more, preferably 18 to 30. Desirable in terms of mitigation. Further, the fact that the number of droplets 7 on the rake face 3 is larger than the number of droplets 7 present on the flank face 4 reduces the rake face 3 from becoming hot due to the passage of chips, and It is desirable in terms of improving the finished surface quality by smoothing the surface.
- the fact that the ratio of Cr in the average composition of the coating layer 6 on the rake face 3 is larger than the average composition of the coating layer 6 on the flank face 4 improves the lubricity, thereby suppressing crater wear and improving chip discharge performance. This is desirable.
- the Al content ratio Al DR of the droplet 7 formed on the surface of the rake face 3 is equal to the Al content ratio Al DF of the droplet 7 formed on the surface of the flank face 4.
- a particularly desirable range of the ratio Al DR / Al DF is 1.00 ⁇ Al DR / Al DF ⁇ 1.02.
- the Ti content ratio Ti DR of the droplet 7 formed on the surface of the rake face 3 of the coating layer 6 is 0.91 ⁇ the Ti content ratio Ti DF of the droplet 7 formed on the surface of the flank 4.
- Ti DR / Ti DF ⁇ 0.97 because both chipping resistance on the rake face 3 and the flank face 4 can be optimized.
- a particularly desirable range of the ratio Ti DR / Ti DF is 0.94 ⁇ Ti DR / Ti DF ⁇ 0.97.
- the covering layer 6 is composed of an alternating stack in which a plurality of layers, such as a first layer 6a and a second layer 6b, are repeatedly stacked. According to this structure, while the hardness of the coating layer 6 improves, the progress of cracks can be suppressed and the fracture resistance is also improved.
- all the thin layers such as the first layer 6a, the second layer 6b,... are not limited to those containing Cr, and any one or more of the first layer 6a, the second layer 6b,. As long as it contains Cr.
- a physical vapor deposition (PVD) method such as an ion plating method or a sputtering method can be applied as a method for forming the surface coating layer 6, and a method for forming such droplets 7 on the surface of the coating layer 6 is an arc.
- PVD physical vapor deposition
- An ion plating method is preferably used.
- the substrate 2 may be a cemented carbide or cermet hard alloy composed of a hard phase mainly composed of tungsten carbide or titanium carbonitride and a binder phase mainly composed of an iron group metal such as cobalt or nickel, or silicon nitride.
- Hard materials such as ultra-high pressure sintered bodies that fire ceramics and aluminum oxide as a main component, hard phases composed of polycrystalline diamond and cubic boron nitride and binder phases such as ceramics and iron group metals under ultra-high pressure Preferably used.
- a tool-shaped substrate is produced using a conventionally known method.
- a coating layer is formed on the surface of the substrate.
- a physical vapor deposition (PVD) method such as an ion plating method or a sputtering method can be suitably applied as the coating layer forming method.
- PVD physical vapor deposition
- the coating layer is formed by an ion plating method, metal titanium (Ti), metal aluminum (Al), metal chromium (Cr), and a predetermined metal M ( Where M is a metal target, a composite alloy target or a sintered body target each independently containing at least one selected from Si, W, Mo, Ta, Hf, Nb, Zr and Y), and a chamber. Set to the side wall surface position.
- the main target is set on the side surface of the chamber, the target having a higher Cr content ratio than other metals is placed on the upper surface of the chamber, and the target having a higher content ratio of other metals is set in the chamber.
- the film is formed by applying an arc current to each target.
- the composition of the formed coating layer and the composition of the droplets can be the configuration of the present invention.
- a method for producing the target when a sintered target obtained by mixing and solidifying metal powder is used, droplets deposited on the surface of the coating layer are used rather than using an alloy target obtained by melting and resolidifying a metal component. The amount tends to increase.
- Film formation conditions include using these targets to evaporate and ionize the metal source by arc discharge, glow discharge, or the like, and simultaneously use nitrogen (N 2 ) gas as a nitrogen source or methane (CH 4 ) / acetylene as a carbon source (A coating layer and a droplet are formed by an ion plating method or a sputtering method in which a C 2 H 2 ) gas is reacted.
- the base is set so that the flank face is substantially parallel to the side face of the chamber and the scoop face is substantially parallel to the upper face of the chamber.
- an arc current of 100 to 200 A is supplied to the main target, 80 to 200 A is supplied to the sub-target containing a large amount of Cr component on the upper surface, and 120 to 250 A is supplied to the sub-target arranged on the side as desired.
- each evaporated metal component in the plasma by applying a magnetic field to the generated arc plasma, such as by placing a magnet in a direction parallel to the target direction with respect to the generated arc plasma.
- a magnetic field to the generated arc plasma
- the composition of the droplet can be controlled within a predetermined range.
- the coating layer is formed by an ion plating method or a sputtering method, a coating layer having a high hardness can be produced in consideration of the crystal structure of the coating layer, and at the same time, 35 to It is preferable to apply a bias voltage of 200V.
- tungsten carbide (WC) powder having an average particle diameter of 0.8 ⁇ m, 10% by mass of metallic cobalt (Co) powder having an average particle diameter of 1.2 ⁇ m, and vanadium carbide (VC) powder having an average particle diameter of 1.0 ⁇ m.
- Chromium carbide (Cr 3 C 2 ) powder of 0.1% by mass and average particle size of 1.0 ⁇ m was added and mixed at a rate of 0.3% by mass, and formed into a throwaway tip shape of DCGT11T302MFCQ shape by press molding. Then, the binder removal process was performed, and it sintered at 1450 degreeC in the vacuum of 0.01 Pa for 1 hour, and produced the cemented carbide alloy. Further, the rake face surface of each sample was polished by blasting, brushing or the like. Further, the prepared cemented carbide was subjected to blade edge processing (honing) by brushing.
- a bias voltage shown in Table 1 is applied to the substrate thus manufactured, a predetermined arc current is caused to flow through the main target, the side sub-target, and the top sub-target, and an arc current is generated.
- the obtained sample was observed at any three locations on the rake face and flank face of the surface of the coating layer and droplets formed on the rake face and flank face, and 10 ⁇ m ⁇ 10 ⁇ m in one field of view.
- the number of droplets having a diameter of 0.3 ⁇ m or more in an arbitrary region was measured, and the average number at five measurement points was calculated.
- the composition of each droplet having a diameter of 0.3 ⁇ m or more was measured by energy dispersive spectroscopy (EDS) (EDAX manufactured by Ametec Corporation), and the average values thereof were measured on the rake face, flank face, and surface of each face of the coating layer. It calculated as an average composition of a droplet.
- EDS energy dispersive spectroscopy
- the average content (atomic%) of Cr, Al, Ti for the droplets formed on the rake face is Cr DR , Al DR , Ti DR , respectively, and the droplets formed on the flank are Cr, Al,
- the average Ti content (atomic%) was expressed as Cr DF , Al DF , and Ti DF , respectively.
- sample No. within the scope of the present invention.
- all of them were excellent in wear resistance and could be machined into a smooth machined surface and exhibited good cutting performance.
Abstract
Description
次に、本発明の切削工具の製造方法について説明する。
切削方法:外径旋削加工
被削材 :炭素鋼(S45C)
切削速度:130m/分
送り :0.05mm/rev
切り込み:1.2mm
切削状態:湿式
評価方法:500個加工後のすくい面を観察して溶着状態を確認した。また、工具寿命まで加工できた加工数を確認し、そのときの摩耗形態を確認した。
2 基体
3 すくい面
4 逃げ面
5 切刃
6 被覆層
7 ドロップレット
Claims (5)
- 基体の表面に、CraM1-a(C1-xNx)(ただし、MはTi、Al、Si、W、Mo、Ta、Hf、Nb、ZrおよびYから選ばれる少なくとも1種、0.01≦a≦0.5、0≦x≦1)からなる被覆層を被覆してなるとともに、すくい面と逃げ面との交差稜線に切刃を有しており、前記被覆層の表面にはドロップレットが存在するとともに、前記すくい面に存在する前記ドロップレットの平均組成が前記逃げ面に存在する前記ドロップレットの平均組成に比べてCrの含有比率が高い切削工具。
- 前記被覆層が、CraTibAlcM’d(C1-xNx)(ただし、M’はSi、W、Mo、Ta、Hf、Nb、ZrおよびYから選ばれる少なくとも1種、0.01≦a≦0.25、0.3≦b≦0.8、0≦c≦0.6、0≦d≦0.25、a+b+c+d=1、0≦x≦1)からなる請求項1記載の切削工具。
- 前記すくい面に存在するドロップレットの数が前記逃げ面に存在するドロップレットの数よりも多い請求項1または2記載の切削工具。
- 前記すくい面における前記被覆層中のCrの含有比率が前記逃げ面における前記被覆層中のCrの含有比率よりも多い請求項1乃至3のいずれか記載の切削工具。
- 前記被覆層が、異なる組成の複数の薄層を交互に繰り返し積層した交互積層構造からなる請求項1乃至4のいずれか記載の切削工具。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/234,617 US9085032B2 (en) | 2011-07-25 | 2012-07-25 | Cutting tool |
KR1020147000916A KR101787496B1 (ko) | 2011-07-25 | 2012-07-25 | 절삭 공구 |
CN201280034707.3A CN103648692B (zh) | 2011-07-25 | 2012-07-25 | 切削工具 |
JP2012545416A JP5174292B1 (ja) | 2011-07-25 | 2012-07-25 | 切削工具 |
EP12816840.8A EP2737967B1 (en) | 2011-07-25 | 2012-07-25 | Cutting tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-162250 | 2011-07-25 | ||
JP2011162250 | 2011-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013015302A1 true WO2013015302A1 (ja) | 2013-01-31 |
Family
ID=47601143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/068793 WO2013015302A1 (ja) | 2011-07-25 | 2012-07-25 | 切削工具 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9085032B2 (ja) |
EP (1) | EP2737967B1 (ja) |
JP (1) | JP5174292B1 (ja) |
KR (1) | KR101787496B1 (ja) |
CN (1) | CN103648692B (ja) |
WO (1) | WO2013015302A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2868408B1 (en) * | 2012-06-27 | 2018-08-29 | Kyocera Corporation | Cutting tool |
EP3106250B1 (en) * | 2014-03-25 | 2019-07-24 | Kanefusa Kabushiki Kaisha | Cutting tool |
WO2016121690A1 (ja) * | 2015-01-28 | 2016-08-04 | 京セラ株式会社 | 被覆工具 |
KR20190022471A (ko) * | 2016-06-29 | 2019-03-06 | 스미또모 덴꼬오 하드메탈 가부시끼가이샤 | 절삭 공구 |
RU2639189C1 (ru) * | 2017-03-10 | 2017-12-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный технический университет" | Способ получения многослойного покрытия для режущего инструмента |
KR102009687B1 (ko) * | 2017-12-28 | 2019-08-12 | 한국야금 주식회사 | 경질피막이 형성된 절삭공구 |
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KR20140039290A (ko) | 2014-04-01 |
CN103648692B (zh) | 2015-11-25 |
US20140271000A1 (en) | 2014-09-18 |
JPWO2013015302A1 (ja) | 2015-02-23 |
EP2737967B1 (en) | 2017-02-01 |
US9085032B2 (en) | 2015-07-21 |
EP2737967A4 (en) | 2015-06-03 |
CN103648692A (zh) | 2014-03-19 |
EP2737967A1 (en) | 2014-06-04 |
KR101787496B1 (ko) | 2017-10-18 |
JP5174292B1 (ja) | 2013-04-03 |
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