WO2021193676A1 - 被覆工具 - Google Patents
被覆工具 Download PDFInfo
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- WO2021193676A1 WO2021193676A1 PCT/JP2021/012104 JP2021012104W WO2021193676A1 WO 2021193676 A1 WO2021193676 A1 WO 2021193676A1 JP 2021012104 W JP2021012104 W JP 2021012104W WO 2021193676 A1 WO2021193676 A1 WO 2021193676A1
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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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/403—Oxides of aluminium, magnesium or beryllium
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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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- 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
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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
- C23C14/0641—Nitrides
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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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
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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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/36—Carbonitrides
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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
- C23C28/04—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
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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
- C23C28/04—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
- 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
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/04—Aluminium oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
- B23B2224/32—Titanium carbide nitride (TiCN)
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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
-
- 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
- B23B2228/105—Coatings with specified thickness
Definitions
- This disclosure relates to covering tools.
- Patent Document 1 As a covering tool, for example, a surface coating cutting tool described in Japanese Patent Application Laid-Open No. 2017-221992 (Patent Document 1) is known.
- the surface-coated cutting tool described in Patent Document 1 includes a coating film including an inner layer and an outer layer on a base material.
- the inner layer contains an aluminum oxide layer as a layer in contact with the outer layer.
- the outer layer includes a multi-layer structure in which three or more layers are laminated, and each layer constituting the multi-layer structure contains titanium.
- An example of a covering tool of the present disclosure which is not limited to the present disclosure, has a substrate and a coating layer located on the substrate.
- the covering tool includes a first surface, a second surface adjacent to the first surface, and a cutting edge located at least a part of the ridgeline portion of the first surface and the second surface.
- the coating layer has a first coating layer containing Al 2 O 3 particles and a second layer located on the first layer.
- the second layer has a first film, a second film in contact with the first film, and a third film in contact with the second film, in this order from the side of the substrate.
- the first film, the second film, and the third film each contain Ti.
- the first film, the second film, and the third film contain at least one selected from C and N, respectively.
- the N content contained in the first film is the first N amount
- the N content contained in the second film is the second N amount
- the N content contained in the third film is the third N amount.
- the relationship of 1st N amount> 3rd N amount> 2nd N amount is satisfied.
- FIG. 1 It is a perspective view which shows the covering tool of embodiment which is not limited in this disclosure. It is sectional drawing of the II-II cross section in the covering tool shown in FIG. It is an enlarged view which expanded the region A1 shown in FIG. It is an enlarged view which expanded the region A2 shown in FIG. It is a perspective view which shows the cutting tool of embodiment which is not limited in this disclosure.
- the covering tool 1 of the embodiment not limited to the present disclosure will be described in detail with reference to the drawings.
- the covering tool 1 may include any component not shown in each of the referenced figures.
- the dimensions of the members in each drawing do not faithfully represent the dimensions of the actual constituent members and the dimensional ratio of each member.
- the covering tool 1 As an example of the covering tool 1, a cutting insert applicable to a cutting tool used when cutting a work material is shown.
- the covering tool 1 can be applied to, for example, wear-resistant parts such as sliding parts and dies, tools such as excavation tools and blades, and impact-resistant parts.
- the application of the covering tool 1 is not limited to the illustrated one.
- the coating tool 1 may have a substrate 2 and a coating layer 3 located on the substrate 2.
- the material of the substrate 2 examples include hard alloys, ceramics and metals.
- the cemented carbide includes, for example, WC (tungsten carbide) and, if desired, at least one selected from the group of carbides, nitrides, and carbonitrides of the metals of Groups 4, 5 and 6 of the Periodic Table other than WC.
- Cemented carbide in which the hard phase is bonded by a bonded phase made of an iron metal such as Co (cobalt) or Ni (nickel) can be mentioned.
- Ti-based cermet and the like may be mentioned.
- Ceramics examples include Si 3 N 4 (silicon nitride), Al 2 O 3 (aluminum oxide), diamond and cBN (cubic boron nitride).
- metal examples include carbon steel, high speed steel, alloy steel and the like.
- the material of the substrate 2 is not limited to the illustrated material.
- the coating layer 3 may cover the entire surface 4 of the substrate 2, or may cover only a part of the surface 4. When the coating layer 3 covers only a part of the surface 4 of the substrate 2, it can be said that the coating layer 3 is located at least a part on the substrate 2.
- the coating layer 3 may be formed by a chemical vapor deposition (CVD) method.
- the coating layer 3 may be a CVD film.
- the coating layer 3 is not limited to a specific thickness.
- the thickness of the coating layer 3 may be set to 1 to 30 ⁇ m.
- the thickness and structure of the coating layer 3, the shape of the crystals constituting the coating layer 3, and the like may be measured by, for example, cross-sectional observation using an electron microscope. Examples of the electron microscope include a scanning electron microscope (SEM) and a transmission electron microscope (TEM).
- the first surface 5 may be a rake surface.
- the entire surface of the first surface 5 may be a rake surface, or a part thereof may be a rake surface.
- the region of the first surface 5 along the cutting edge 7 may be a rake surface.
- the second surface 6 may be an escape surface.
- the entire surface of the second surface 6 may be a flank, or a part thereof may be a flank.
- the region of the second surface 6 along the cutting edge 7 may be the flank.
- the cutting edge 7 may be located in a part of the ridgeline portion, or may be located in the entire ridgeline portion.
- the cutting edge 7 can be used for cutting a work material.
- the covering tool 1 may have a square plate shape as in the non-limiting example shown in FIG.
- the shape of the covering tool 1 is not limited to the square plate shape.
- the first surface 5 may be triangular, pentagonal, hexagonal or circular.
- the covering tool 1 may have a pillar shape.
- the coating layer 3 may have the first coating layer 8 as in the non-limiting example shown in FIG.
- the first coating layer 8 may have a first layer 9 and a second layer 10 located on the first layer 9.
- the first layer 9 may contain Al 2 O 3 particles.
- the first layer 9 may be an Al 2 O 3 layer.
- the Al 2 O 3 layer may mean a layer containing Al 2 O 3 as a main component.
- the "main component” may mean the component having the largest mass% value as compared with other components.
- the first film 11, the second film 12, and the third film 13 may each contain Ti (titanium). Further, the first film 11, the second film 12, and the third film 13 may contain at least one selected from C (carbon) and N (nitrogen), respectively.
- first film 11, the second film 12, and the third film 13 may each contain a titanium compound.
- the first film 11, the second film 12, and the third film 13 may each contain a titanium compound as a main component.
- examples of the titanium compound may include carbides of titanium, nitrides, oxides, carbonitrides, coal oxides, carbon dioxide oxides and the like.
- the N content contained in the first film 11 is the first N amount
- the N content contained in the second film 12 is the second N amount
- the N content contained in the third film 13 is the third N amount.
- the relationship of 1st N amount> 3rd N amount> 2nd N amount may be satisfied.
- the first film 11 is the most easily peelable film among the first film 11, the second film 12, and the third film 13.
- the first film 11 has the lowest adhesion among the first film 11, the second film 12, and the third film 13.
- the first film 11 has the highest welding resistance among the first film 11, the second film 12, and the third film 13.
- the hardness, peeling resistance and welding resistance of the third film 13 are located between the first film 11 and the second film 12, respectively.
- the covering tool 1 having each film having such a structure as in the above-mentioned covering structure is excellent in wear resistance and welding resistance.
- the second film 12 may contain TiC particles
- the third film 13 may contain TiCN particles.
- the second film 12 may be a TiC film
- the third film 13 may be a TiCN film.
- the second film 12 and the third film 13 may each contain TiCN particles.
- the second film 12 and the third film 13 may be TiCN films, respectively.
- the second film 12 and the third film 13 each contain TiCN particles, X2> X3 may be satisfied. That is, the C content contained in the second film 12 may be higher than the C content contained in the third film 13.
- the thicknesses of the first film 11, the second film 12, and the third film 13 may be the same or different.
- the thickness of the second film 12 may be thicker than the thickness of the first film 11 and the thickness of the third film 13. In this case, the wear resistance is high.
- each of the first film 11, the second film 12, and the third film 13 is not limited to a specific value.
- the thickness of the first film 11 may be set to 0.1 to 0.5 ⁇ m.
- the thickness of the second film 12 may be set to 0.5 to 1.0 ⁇ m.
- the thickness of the third film 13 may be set to 0.3 to 0.7 ⁇ m.
- the thickness of the second film 12 may be 40% or more of the total thickness of the second layer 10.
- the second layer 10 may or may not be in contact with the first layer 9.
- the first layer 9 may or may not be in contact with the substrate 2.
- the first coating layer 8 may have another layer located between the first layer 9 and the second layer 10, and may be located between the substrate 2 and the first layer 9. It may have other layers.
- the other layer may contain TiN particles, TiC particles or TiCN particles.
- the other layer may be a TiN film, a TiC film or a TiCN film.
- the first coating layer 8 may be located on the first surface 5 (rake surface). In this case, the wear resistance and welding resistance of the first surface 5 are high.
- the first coating layer 8 may be located on the second surface 6 (relief surface). In this case, the wear resistance and welding resistance of the second surface 6 are high.
- the coating layer 3 may have a second coating layer 14, as in the non-limiting example shown in FIG.
- the second coating layer 14 may have a third layer 15.
- the third layer 15 may contain Al 2 O 3 particles.
- the third layer 15 may be an Al 2 O 3 layer.
- the third layer 15 may be the outermost layer.
- the second coating layer 14 may be located on the second surface 6 (relief surface). In this case, the welding resistance of the second surface 6 is high.
- the second coating layer 14 may be located on the first surface 5 (rake surface). In this case, the welding resistance of the first surface 5 is high.
- the first coating layer 8 may be located on the first surface 5 (rake surface), and the second coating layer 14 may be located on the second surface 6 (escape surface).
- the first surface 5 has high wear resistance and welding resistance
- the second surface 6 has high welding resistance.
- the first coating layer 8 may be located on the second surface 6 (relief surface), and the second coating layer 14 may be located on the first surface 5 (rake surface).
- the first surface 5 has high welding resistance
- the second surface 6 has high wear resistance and welding resistance.
- the substrate 2 may be prepared first. A case where a substrate 2 made of a hard alloy is produced as the substrate 2 will be described as an example. First, metal powder, carbon powder and the like may be appropriately added and mixed with inorganic powders such as metal carbides, nitrides, carbonitrides and oxides capable of forming the substrate 2 by firing to obtain a mixed powder. Next, this mixed powder may be molded into a predetermined tool shape by a known molding method such as press molding, casting molding, extrusion molding, or cold hydrostatic press molding to obtain a molded product. Then, the obtained molded product may be fired in a vacuum or in a non-oxidizing atmosphere to obtain a substrate 2. The surface 4 of the substrate 2 may be polished or honed.
- the coating layer 3 may be formed on the surface 4 of the obtained substrate 2 by the CVD method to obtain the coating tool 1.
- the first layer 9 When the first layer 9 is in contact with the substrate 2, as in the non-limiting example shown in FIG. 3, the first layer 9 (Al 2 O 3 layer) may be formed first.
- AlCl 3 aluminum trichloride
- HCl hydrogen chloride
- CO 2 carbon dioxide
- a mixed gas consisting of 5 to 5% by volume, 0.5% by volume or less of hydrogen sulfide (H 2 S) gas, and the balance of hydrogen (H 2 ) gas may be adjusted.
- this mixed gas may be introduced into the chamber, the temperature may be set to 930 to 1010 ° C., the pressure may be set to 5 to 10 kPa, and the time may be set to 30 to 300 minutes to form the first layer 9.
- This film forming condition can also be applied to the third layer 15.
- the first film 11, the second film 12, and the third film 13 in the second layer 10 may be formed in this order.
- TiN film is formed as the first film 11
- a mixed gas consisting of titanium tetrachloride (TiCl 4 ) gas in an amount of 0.1 to 10% by volume, nitrogen (N 2 ) gas in an amount of 10 to 60% by volume, and the rest being hydrogen (H 2 ) gas is used. You may adjust. Then, this mixed gas may be introduced into the chamber, the temperature may be set to 800 to 1010 ° C., the pressure may be set to 10 to 85 kPa, and the time may be set to 10 to 60 minutes to form the first film 11 which is a TiN film. ..
- reaction gas composition a mixture consisting of titanium tetrachloride (TiCl 4 ) gas of 0.1 to 30% by volume, methane (CH 4 ) gas of 0.1 to 20% by volume, and the rest of hydrogen (H 2) gas.
- TiCl 4 titanium tetrachloride
- CH 4 methane
- H 2 hydrogen
- this mixed gas may be introduced into the chamber, the temperature may be set to 800 to 1100 ° C., the pressure may be set to 10 to 85 kPa, and the time may be set to 10 to 120 minutes to form the second film 12 which is a TiC film. ..
- the reaction gas composition is 0.1 to 10% by volume of titanium tetrachloride (TiCl 4 ) gas, 10 to 60% by volume of nitrogen (N 2 ) gas, and 0.1 to 15 % by volume of methane (CH 4) gas. %, A mixed gas consisting of hydrogen (H 2) gas as the rest may be adjusted. Then, this mixed gas may be introduced into the chamber, the temperature may be set to 800 to 1100 ° C., the pressure may be set to 5 to 30 kPa, and the time may be set to 20 to 100 minutes to form the third film 13 which is a TiCN film. ..
- This film forming condition can also be applied when the second film 12 is a TiCN film. Further, for example, in the above reaction gas composition, when the ratio of the N 2 component is large, N / (C + N) is large. On the contrary, when the ratio of the N 2 component is small, N / (C + N) is small.
- the reaction gas composition is adjusted to contain N in the first film 11, the second film 12, and the third film 13.
- the amount can be 1N> 3N> 2N.
- the region including the cutting edge 7 may be polished. As a result, the region including the cutting edge 7 becomes smooth, and as a result, welding of the work material is suppressed, and the fracture resistance of the cutting edge 7 is improved.
- the above manufacturing method is an example of a method for manufacturing the covering tool 1. Therefore, it goes without saying that the covering tool 1 is not limited to the one manufactured by the above manufacturing method.
- the cutting tool 101 of the non-limiting embodiment of the present disclosure has a length extending from the first end 102a to the second end 102b, and is a pocket located on the first end 102a side. It may have a holder 102 having 103 and a covering tool 1 located in pocket 103. Note that FIG. 5 illustrates a case where the covering tool 1 has a through hole, and the covering tool 1 is fixed to the pocket 103 with a screw 104 through the through hole.
- a substrate was prepared. Specifically, with respect to the average particle diameter 1.2 ⁇ m of WC powder, average particle metal Co powder of diameter 1.5 [mu] m 6 wt%, 2.0 wt% of TiC (titanium carbide) powder, Cr 3 C 2 (Chromium carbide) powder was added at a ratio of 0.2% by mass, mixed, and formed into a cutting tool shape (CNMG120408) by press molding to obtain a molded product. The obtained molded product was subjected to a binder removal treatment and fired in a vacuum of 0.5 to 100 Pa at 1400 ° C. for 1 hour to prepare a substrate made of cemented carbide. The rake face (first surface) of the produced substrate was brushed to perform cutting edge treatment (R honing).
- a coating layer (second layer) was formed on the obtained substrate by the CVD method under the film formation conditions shown in Table 1 to obtain a coating tool (cutting insert) shown in Table 2.
- Al 2 O 3 layer (first layer) is formed on the substrate.
- the film formation conditions and thickness of the Al 2 O 3 layer are as follows.
- Welding resistance evaluation Processing method Turning work material: S45C Round bar Cutting speed: 100 m / min Feed: 0.1 mm / rev Notch: 1.0 mm Machining condition: Wet evaluation item: Check the state of welding to the cutting edge when the cutting time is 5 minutes
- Table 2 shows the flank wear amount (Vb) when the cutting time is 20 minutes and the state of welding to the cutting edge when the cutting time is 5 minutes.
- the two parameters of cutting edge welding and chipping are shown according to the following criteria.
- the notation of " ⁇ ” regarding the state of welding to the cutting edge means that there was no welding and no chipping.
- the notation of " ⁇ ” means that no chipping occurred, but a small amount of welding was confirmed.
- the notation of " ⁇ ” means that chipping did not occur, but the amount of welding was larger than that of " ⁇ ”.
- the notation of "x” means that welding has occurred and chipping due to welding has occurred.
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Abstract
Description
以下、本開示の限定されない実施形態の被覆工具1について、図面を用いて詳細に説明する。但し、以下で参照する各図では、説明の便宜上、実施形態を説明する上で必要な主要部材のみが簡略化して示される。したがって、被覆工具1は、参照する各図に示されていない任意の構成部材を備え得る。また、各図中の部材の寸法は、実際の構成部材の寸法および各部材の寸法比率などを忠実に表したものではない。
このような構成を有する各膜を、上記の被覆構成のように有する被覆工具1は、耐摩耗性および耐溶着性に優れる。
次に、本開示の限定されない実施形態の被覆工具の製造方法について、被覆工具1を製造する場合を例に挙げて説明する。
図5に示す限定されない一例のように、本開示の限定されない実施形態の切削工具101は、第1端102aから第2端102bに亘る長さを有し、第1端102a側に位置するポケット103を有するホルダ102と、ポケット103に位置する被覆工具1と、を有していてもよい。なお、図5では、被覆工具1が貫通孔を有し、この貫通孔を介して被覆工具1をポケット103にネジ104で固定した場合を例示している。
<被覆工具の作製>
まず、基体を作製した。具体的には、平均粒径1.2μmのWC粉末に対して、平均粒径1.5μmの金属Co粉末を6質量%、TiC(炭化チタン)粉末を2.0質量%、Cr3C2(炭化クロム)粉末を0.2質量%の比率で添加して混合し、プレス成形により切削工具形状(CNMG120408)に成形し、成形体を得た。得られた成形体に脱バインダ処理を施し、0.5~100Paの真空中、1400℃で1時間焼成し、超硬合金からなる基体を作製した。作製した基体のすくい面(第1面)の側に、ブラシ加工で刃先処理(Rホーニング)を施した。
AlCl3ガス:4.0体積%
HClガス:1.0体積%
CO2ガス:4.5体積%
H2Sガス:0.3体積%
H2ガス:残部
温度:1000℃
圧力:10kPa
時間:300分
厚み:5.0μm
得られた被覆工具について、外観色を目視にて評価した。結果を表1に示す。また、耐摩耗性と刃先への溶着の有無を評価した。測定方法を以下に示すとともに、結果を表2に示す。
耐摩耗性評価
加工方法:旋削加工
被削材 :SCM435丸棒
切削速度:300m/min
送り :0.3mm/rev
切り込み:1.5mm
加工状態:湿式
評価項目:切削時間20分時の逃げ面の摩耗量を確認
加工方法:旋削加工
被削材 :S45C丸棒
切削速度:100m/min
送り :0.1mm/rev
切り込み:1.0mm
加工状態:湿式
評価項目:切削時間5分時の刃先への溶着の状態を確認
2・・・基体
3・・・被覆層
4・・・表面
5・・・第1面
6・・・第2面
7・・・切刃
8・・・第1被覆層
9・・・第1層
10・・・第2層
11・・・第1膜
12・・・第2膜
13・・・第3膜
14・・・第2被覆層
15・・・第3層
101・・・切削工具
102・・・ホルダ
102a・・第1端
102b・・第2端
103・・・ポケット
104・・・ネジ
Claims (5)
- 基体と、該基体の上に位置する被覆層とを有する被覆工具であって、
前記被覆工具は、第1面と、該第1面と隣り合う第2面と、前記第1面と前記第2面の稜線部の少なくとも一部に位置する切刃とを備え、
前記被覆層は、
Al2O3粒子を含有する第1層と、
該第1層の上に位置する第2層とを有する第1被覆層を有し、
前記第2層は、前記基体の側から順に、
第1膜と、
該第1膜に接する第2膜と、
該第2膜に接する第3膜とを有し、
前記第1膜、前記第2膜および前記第3膜は、それぞれTiを含有し、
前記第1膜、前記第2膜および前記第3膜は、それぞれCおよびNから選ばれる少なくとも1種を含有し、
前記第1膜に含まれるN含有量を第1N量とし、
前記第2膜に含まれるN含有量を第2N量とし、
前記第3膜に含まれるN含有量を第3N量とした場合、
第1N量>第3N量>第2N量の関係を充足する、被覆工具。 - 前記第2膜の厚みは、前記第1膜の厚みおよび前記第3膜の厚みよりも厚い、請求項1に記載の被覆工具。
- 前記第3膜は、CおよびNを含有しており、
前記第3膜におけるN/(C+N)は、0.7以上である、請求項1または2に記載の被覆工具。 - 前記第2膜の厚みは、0.5μm以上、1.0μm以下である、請求項1~3のいずれかに記載の被覆工具。
- 第1端から第2端に亘る長さを有し、前記第1端側に位置するポケットを有するホルダと、
前記ポケットに位置する請求項1~4のいずれかに記載の被覆工具と、を有する切削工具。
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JP2022510576A JP7431945B2 (ja) | 2020-03-27 | 2021-03-24 | 被覆工具 |
DE112021001964.3T DE112021001964T5 (de) | 2020-03-27 | 2021-03-24 | Beschichtetes werkzeug |
CN202180022495.6A CN115315330A (zh) | 2020-03-27 | 2021-03-24 | 涂层刀具 |
US17/914,741 US20230126815A1 (en) | 2020-03-27 | 2021-03-24 | Coated tool |
KR1020227030486A KR20220136411A (ko) | 2020-03-27 | 2021-03-24 | 피복 공구 |
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JP (1) | JP7431945B2 (ja) |
KR (1) | KR20220136411A (ja) |
CN (1) | CN115315330A (ja) |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2000079022A1 (fr) * | 1999-06-21 | 2000-12-28 | Sumitomo Electric Industries, Ltd. | Alliage dur enrobé |
JP2006021316A (ja) * | 2004-06-24 | 2006-01-26 | Sandvik Intellectual Property Hb | 被覆超硬合金切削工具インサート |
JP2009078309A (ja) * | 2007-09-25 | 2009-04-16 | Mitsubishi Materials Corp | 表面被覆切削工具 |
JP2009255234A (ja) * | 2008-04-17 | 2009-11-05 | Mitsubishi Materials Corp | 表面被覆切削工具 |
Family Cites Families (5)
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DE69025521T2 (de) * | 1989-09-11 | 1996-10-24 | Praxair Technology Inc | Mehrlagiger Überzug von einem nitridhaltigen Werkstoff und seine Herstellung |
EP3075475A4 (en) * | 2013-11-29 | 2017-06-21 | Kyocera Corporation | Cutting tool |
JP6699056B2 (ja) | 2016-06-14 | 2020-05-27 | 住友電工ハードメタル株式会社 | 表面被覆切削工具 |
US20190344356A1 (en) * | 2016-11-16 | 2019-11-14 | Kyocera Corporation | Cutting insert and cutting tool |
JP7128073B2 (ja) | 2018-10-01 | 2022-08-30 | 株式会社ディスコ | 加工方法 |
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2021
- 2021-03-24 WO PCT/JP2021/012104 patent/WO2021193676A1/ja active Application Filing
- 2021-03-24 CN CN202180022495.6A patent/CN115315330A/zh active Pending
- 2021-03-24 KR KR1020227030486A patent/KR20220136411A/ko not_active Application Discontinuation
- 2021-03-24 JP JP2022510576A patent/JP7431945B2/ja active Active
- 2021-03-24 US US17/914,741 patent/US20230126815A1/en active Pending
- 2021-03-24 DE DE112021001964.3T patent/DE112021001964T5/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000079022A1 (fr) * | 1999-06-21 | 2000-12-28 | Sumitomo Electric Industries, Ltd. | Alliage dur enrobé |
JP2006021316A (ja) * | 2004-06-24 | 2006-01-26 | Sandvik Intellectual Property Hb | 被覆超硬合金切削工具インサート |
JP2009078309A (ja) * | 2007-09-25 | 2009-04-16 | Mitsubishi Materials Corp | 表面被覆切削工具 |
JP2009255234A (ja) * | 2008-04-17 | 2009-11-05 | Mitsubishi Materials Corp | 表面被覆切削工具 |
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DE112021001964T5 (de) | 2023-01-12 |
JPWO2021193676A1 (ja) | 2021-09-30 |
CN115315330A (zh) | 2022-11-08 |
JP7431945B2 (ja) | 2024-02-15 |
KR20220136411A (ko) | 2022-10-07 |
US20230126815A1 (en) | 2023-04-27 |
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