WO2025206384A1 - Outil revêtu, outil de coupe et procédé de fabrication de pièce coupée - Google Patents

Outil revêtu, outil de coupe et procédé de fabrication de pièce coupée

Info

Publication number
WO2025206384A1
WO2025206384A1 PCT/JP2025/012996 JP2025012996W WO2025206384A1 WO 2025206384 A1 WO2025206384 A1 WO 2025206384A1 JP 2025012996 W JP2025012996 W JP 2025012996W WO 2025206384 A1 WO2025206384 A1 WO 2025206384A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating layer
plane
tilt angle
ray intensity
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2025/012996
Other languages
English (en)
Japanese (ja)
Inventor
賢作 渡邉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Publication of WO2025206384A1 publication Critical patent/WO2025206384A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • 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

Definitions

  • Embodiments of the present disclosure relate to methods for manufacturing coated tools, cutting tools, and machined products.
  • Coated tools which have improved wear resistance and other properties by coating the surface of a substrate made of cemented carbide, cermet, ceramic, or other material, are known as tools used in cutting processes such as turning and milling.
  • a coated tool comprising a substrate and a coating coated on its surface, the coating including an intermediate film coated on the substrate surface and an oxide film coated on the intermediate film surface.
  • the intermediate film is made of at least one material selected from the group consisting of TiN, TiCN, TiAlN, TiAlZrN, TiAlCrN, and AlCrN.
  • the intermediate film is a cubic crystal.
  • the peak intensity of the (200) plane diffraction line of the intermediate film is the highest.
  • the X-ray intensity distribution of the ⁇ axis of the pole figure for the (200) plane of the intermediate film shows the highest intensity in the ⁇ angle range of 80 to 90 degrees (see, for example, WO 2012/018063).
  • a coated tool comprises a substrate and at least one coating layer positioned on the substrate, the coating layer comprising cubic crystals containing at least one element selected from among elements of Groups 4, 5, and 6 of the periodic table, Al, and Si, and at least one element selected from among C and N, and in an X-ray diffraction pole figure of the coating layer, the X-ray intensity associated with the (111) plane of the cubic crystals and the X-ray intensity associated with the (200) plane of the cubic crystals each monotonically increase within the tilt angle range of the coating layer from 0° to 90°.
  • FIG. 1 is a perspective view showing an example of a coated tool according to the present embodiment.
  • FIG. 2 is a cross-sectional view showing an example of an insert according to this embodiment.
  • FIG. 3 is a diagram illustrating a method for obtaining an X-ray diffraction pole figure for the coating layer according to this embodiment.
  • FIG. 4 is a diagram illustrating an X-ray diffraction pole figure for the coating layer according to this embodiment.
  • FIG. 5 is a diagram showing an example of the distribution of X-ray intensity for the (111) plane of the cubic crystal contained in the coating layer according to this embodiment.
  • FIG. 6 is a diagram showing an example of the distribution of X-ray intensity for the (200) plane of the cubic crystal contained in the coating layer according to this embodiment.
  • FIG. 1 is a perspective view showing an example of a coated tool according to the present embodiment.
  • FIG. 2 is a cross-sectional view showing an example of an insert according to this embodiment.
  • FIG. 3 is a diagram
  • FIG. 7 is a front view showing an example of a cutting tool according to this embodiment.
  • FIG. 8A is a schematic diagram showing one step of the method for manufacturing a machined product according to the embodiment.
  • FIG. 8B is a schematic diagram showing one step of the method for manufacturing a machined product according to the embodiment.
  • FIG. 8C is a schematic diagram showing one step of the method for manufacturing a machined product according to the embodiment.
  • FIG. 9 is a diagram showing the distribution of X-ray intensity for the (111) plane of the cubic crystal contained in the coating layer according to the example.
  • FIG. 10 is a diagram showing the distribution of X-ray intensity for the (200) plane of the cubic crystal contained in the coating layer according to the example.
  • FIG. 9 is a diagram showing the distribution of X-ray intensity for the (111) plane of the cubic crystal contained in the coating layer according to the example.
  • FIG. 10 is a diagram showing the distribution of X-ray intensity for the (200) plane of the cubic crystal contained in the coating
  • the intensity of X-rays relating to the (200) plane of the cubic crystals contained in the coating layer 3 increases monotonically within the range of the tilt angle ⁇ of the coating layer 3 from 0° to 90°. Therefore, the maximum value of the intensity of X-rays relating to the (200) plane of the cubic crystals contained in the coating layer 3 within the range of the tilt angle ⁇ of the coating layer 3 from 0° to 90° includes I(200, 90°).
  • the intensity of X-rays associated with the (111) plane of the cubic crystals contained in the coating layer 3 increases monotonically within the range of the tilt angle ⁇ of the coating layer 3 from 0° to 90°. Therefore, the minimum value of the intensity of X-rays associated with the (111) plane of the cubic crystals contained in the coating layer 3 within the range of the tilt angle ⁇ of the coating layer 3 from 0° to 90° includes I(111,0°).
  • I(200,0°)/I(200,90°) is greater than I(111,0°)/I(111,90°).
  • the coated tool 1 is manufactured by forming at least one coating layer 3 on the base body 2.
  • the coating layer 3 may be formed, for example, by physical vapor deposition (PVD).
  • PVD physical vapor deposition
  • the coating layer 3 is formed using physical vapor deposition while the base body 2 is held on the inner surface of the through hole 15, it becomes possible to form the coating layer 3 so as to cover the entire surface of the base body 2 except for the inner surface of the through hole 15.
  • Examples of physical vapor deposition methods include ion plating methods such as arc ion plating (AIP) and sputtering.
  • Arc ion plating is a method in which a target element is evaporated using arc discharge in a vacuum atmosphere, and then combined with nitrogen (N 2 ) gas or the like as needed to form a film of the target element or a nitride of the target element.
  • the coated tool 1 when the coating layer 3 is formed on the substrate 2 using the arc ion plating method, the coated tool 1 can be produced by the following method.
  • targets of the elements Ti, Al, and M, or a target of composite elements, or a sintered target are prepared.
  • M is at least one element selected from Groups 4, 5, and 6 (excluding Cr) of the periodic table, and Si.
  • the target which is the source of the element
  • the target is evaporated and ionized by arc discharge, glow discharge, or the like.
  • the ionized element is reacted with, for example, nitrogen (N 2 ) gas and deposited on the surface of the substrate 2. This makes it possible to form a coating layer 3 on the substrate 2.
  • the X-ray intensity for the (111) plane of the cubic crystal and the X-ray intensity for the (200) plane of the cubic crystal to monotonically increase within the tilt angle ⁇ range of the coating layer 3 from 0° to 90° in the X-ray diffraction pole figure for the coating layer 3, it is possible to increase the plasma density and plasma energy of the ionized elements and periodically vary the pressure of the gas such as nitrogen gas.
  • Methods for increasing the plasma density and plasma energy of the ionized elements include, for example:
  • the temperature of the substrate 2 is set to a temperature in the range of 550°C to 600°C.
  • the distance between the target and the substrate 2 is set to a range of 50 mm to 200 mm.
  • the cutting tool 100 includes a coated tool 1 and a holder 70 for fixing the coated tool 1.
  • the holder 70 is a rod-shaped member extending from a first end (the upper end in FIG. 7) to a second end (the lower end in FIG. 7).
  • the holder 70 is made of, for example, steel or cast iron. Of these materials, steel, which has high toughness, may also be used.
  • the holder 70 has a pocket 73 at the end on the first end side.
  • the pocket 73 is the part where the coated tool 1 is attached, and has a seating surface that intersects with the rotation direction of the workpiece, and a restraining side surface that is inclined relative to the seating surface.
  • the seating surface has a screw hole into which a screw 75 (described below) is threaded.
  • the coated tool 1 is positioned within the pocket 73 of the holder 70 and attached to the holder 70 by a screw 75. That is, the screw 75 is inserted into the through-hole 5 of the coated tool 1, and the tip of the screw 75 is inserted into a threaded hole formed in the seating surface of the pocket 73 to screw the threaded portions together. In this way, the coated tool 1 is attached to the holder 70 so that the cutting edge portion protrudes outward from the holder 70.
  • a cutting tool 100 used for so-called turning is exemplified.
  • turning include internal diameter machining, external diameter machining, and grooving.
  • Cutting tools are not limited to those used for turning.
  • the coated tool 1 may be used as a cutting tool used for milling.
  • cutting tools used for milling include milling cutters such as flat milling cutters, face milling cutters, side milling cutters, and groove milling cutters, and end mills such as single-blade end mills, multi-blade end mills, tapered-blade end mills, and ball end mills.
  • Turning is performed using a lathe. Turning includes the steps of rotating the workpiece, bringing a fixed cutting tool 100 into contact with the rotating workpiece to remove the surface of the rotating workpiece, and removing the cutting tool 100 from the workpiece. By machining the workpiece into a desired rotationally symmetric shape in this way, it is possible to produce rotationally symmetric machined products.
  • Turning is performed using a milling machine. Turning includes the steps of rotating the cutting tool 100, bringing the rotating cutting tool 100 into contact with the fixed workpiece to remove the fixed workpiece, and removing the cutting tool 100 from the workpiece. By machining the workpiece into a desired shape in this way, it is possible to produce machined products.
  • the coated tools produced as examples as described above were subjected to measurement of X-ray diffraction pole figures for the coating layers of the coated tools produced as examples using a thin film X-ray diffractometer under the conditions shown below.
  • Scanning method Concentric circles ⁇ fixed angle: The diffraction angle 2 ⁇ for the plane corresponding to the (111) plane was set to the angle at which the intensity of the diffracted X-rays was the highest in the range of 35° to 38°.
  • the distribution of X-ray intensity for the (111) and (200) planes of the cubic crystals contained in the coating layer of the coated tool produced as an example was calculated. Specifically, for each tilt angle ⁇ in 2.5° steps, the average value of the measured X-ray intensity for the in-plane rotation angle ⁇ was calculated to calculate the X-ray intensity at each tilt angle ⁇ . Next, a fourth-order polynomial approximation was performed on the calculated X-ray intensity for each tilt angle ⁇ , and a fourth-order polynomial approximation curve showing the distribution of X-ray intensity for the tilt angle ⁇ was obtained.
  • Figure 9 shows the distribution of X-ray intensity for the (111) plane of the cubic crystals contained in the coating layer of Example Sample No. 1.
  • Figure 10 shows the distribution of X-ray intensity for the (200) plane of the cubic crystals contained in the coating layer of Example Sample No. 1.
  • the horizontal axis represents the tilt angle ⁇ (°)
  • the vertical axis represents the X-ray intensity (counts).
  • the minimum X-ray intensity (222) for the cubic crystal (111) plane in the coating layer tilt angle range of 30° to 90° was more than 0.8 times the maximum X-ray intensity (274) for the cubic crystal (111) plane in the coating layer tilt angle range of 30° to 90°.
  • the coated tool comprises a substrate and at least one coating layer positioned on the substrate, and the coating layer includes cubic crystals containing at least one element selected from among elements in Groups 4, 5, and 6 of the periodic table, Al, and Si, and at least one element selected from among C and N.
  • the X-ray diffraction pole figures for the coating layer it was confirmed that the X-ray intensity for the (111) plane of the cubic crystals and the X-ray intensity for the (200) plane of the cubic crystals each monotonically increase over the tilt angle range of the coating layer from 0° to 90°.
  • the minimum X-ray intensity value for the (200) plane of the cubic crystal in the coating layer tilt angle range of 45° to 90° was 0.2 times or more the maximum X-ray intensity value for the (200) plane of the cubic crystal in the coating layer tilt angle range of 45° to 90°.
  • the minimum X-ray intensity for the (111) plane of the cubic crystal in the coating layer tilt angle range of 30° to 90° was 0.8 times or more the maximum X-ray intensity for the (111) plane of the cubic crystal in the coating layer tilt angle range of 30° to 90°.
  • X-ray diffraction pole figures were measured for the coating layer of a conventional coated tool used as a comparative example, and X-ray diffraction pole figures were obtained for the (111) and (200) planes of the cubic crystals contained in the coating layer. From the obtained pole figures, a fourth-order polynomial approximation curve was similarly obtained, showing the distribution of X-ray intensity for the (111) and (200) planes of the cubic crystals contained in the coating layer of the comparative coated tool.
  • Figure 11 shows the distribution of X-ray intensity for the (111) plane of the cubic crystals contained in the coating layer of comparative sample No. 7.
  • Figure 12 shows the distribution of X-ray intensity for the (200) plane of the cubic crystals contained in the coating layer of comparative sample No. 7.
  • the horizontal axis represents the tilt angle ⁇ (°)
  • the vertical axis represents the X-ray intensity (counts).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

L'invention concerne un outil revêtu comprenant un substrat et au moins une couche de revêtement positionnée sur le substrat. La couche de revêtement comprend un cristal cubique contenant : au moins un élément choisi parmi des éléments du groupe 4, du groupe 5 et du groupe 6 du tableau périodique, Al et Si ; et au moins un élément choisi parmi C et N. En ce qui concerne la figure de pôle positif du motif de diffraction de rayons X de la couche de revêtement, l'intensité de rayons X liée au plan (111) du cristal cubique et l'intensité de rayons X liée au plan (200) du cristal cubique augmentent de manière monotone dans la plage d'angle d'inclinaison de la couche de revêtement de 0° à 90°.
PCT/JP2025/012996 2024-03-28 2025-03-28 Outil revêtu, outil de coupe et procédé de fabrication de pièce coupée Pending WO2025206384A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024-055066 2024-03-28
JP2024055066 2024-03-28

Publications (1)

Publication Number Publication Date
WO2025206384A1 true WO2025206384A1 (fr) 2025-10-02

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ID=97216809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/012996 Pending WO2025206384A1 (fr) 2024-03-28 2025-03-28 Outil revêtu, outil de coupe et procédé de fabrication de pièce coupée

Country Status (1)

Country Link
WO (1) WO2025206384A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009203485A (ja) * 2008-02-26 2009-09-10 Tungaloy Corp 被覆部材
WO2012018063A1 (fr) * 2010-08-04 2012-02-09 株式会社タンガロイ Outil revêtu
WO2021241499A1 (fr) * 2020-05-28 2021-12-02 京セラ株式会社 Outil revêtu et outil de coupe pourvu de celui-ci
WO2022172954A1 (fr) * 2021-02-12 2022-08-18 株式会社Moldino Outil revêtu
WO2023022230A1 (fr) * 2021-08-19 2023-02-23 株式会社Moldino Outil revêtu

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009203485A (ja) * 2008-02-26 2009-09-10 Tungaloy Corp 被覆部材
WO2012018063A1 (fr) * 2010-08-04 2012-02-09 株式会社タンガロイ Outil revêtu
WO2021241499A1 (fr) * 2020-05-28 2021-12-02 京セラ株式会社 Outil revêtu et outil de coupe pourvu de celui-ci
WO2022172954A1 (fr) * 2021-02-12 2022-08-18 株式会社Moldino Outil revêtu
WO2023022230A1 (fr) * 2021-08-19 2023-02-23 株式会社Moldino Outil revêtu

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