WO2024071588A1 - Film de revêtement dur pour outil de coupe - Google Patents

Film de revêtement dur pour outil de coupe Download PDF

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Publication number
WO2024071588A1
WO2024071588A1 PCT/KR2023/009072 KR2023009072W WO2024071588A1 WO 2024071588 A1 WO2024071588 A1 WO 2024071588A1 KR 2023009072 W KR2023009072 W KR 2023009072W WO 2024071588 A1 WO2024071588 A1 WO 2024071588A1
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roughness
macro
surface roughness
macroscopic
microscopic
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PCT/KR2023/009072
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English (en)
Korean (ko)
Inventor
권진한
안승수
박제훈
조영주
김형진
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한국야금 주식회사
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Publication of WO2024071588A1 publication Critical patent/WO2024071588A1/fr

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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
    • 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
    • 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
    • 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
    • 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
    • B23C—MILLING
    • B23C2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23C2228/10—Coating

Definitions

  • the present invention relates to a hard coating for cutting tools, and in particular, to a hard coating that varies the roughness in the inner and outer ranges around a predetermined distance from the cutting edge of the hard coating.
  • the hard film formed through deposition technology on the hard base material has a risk of peeling due to increased stress in the hard film due to the difference in lattice constant from the hard base material and the characteristics of the physical vapor deposition method.
  • the adhesion of the hard film has been improved through pre-treatment, etching, adhesion layer, multi-layer structure thin film, and post-processing technology.
  • the specific surface of the surface of the hard base material can be increased to increase the adhesion between the base material and the thin film.
  • the increase in specific surface area can increase the specific surface area between the thin film and the workpiece material. This leads to an increase in weldability, which can lead to a decrease in tool life due to tearing of the hard film.
  • a hard film post-treatment process has been applied to reduce tool surface roughness and improve lubricity.
  • there are limits to improving the roughness through the hard film post-treatment process and there are disadvantages in terms of manufacturing efficiency due to the additional process.
  • the problem of tool life reduction occurs due to increased weldability due to the still high specific surface area of the hard base material, so improvement is necessary.
  • the specific surface area of the hard base material is excessively reduced, the adhesion between the hard base material and the hard film may decrease, leading to accelerated peeling of the film.
  • the purpose of the present invention is to provide a hard coating cutting tool with excellent weld resistance and wear resistance.
  • the cutting tool provided by the present invention has a hard film, and the hard film has a macroscopic surface roughness when measuring surface roughness within 100 ⁇ m in the rake surface direction from the cutting edge of the hard film.
  • the first macroscopic roughness (macro_S aR1 ), which is the surface roughness, is smaller than the second macroscopic roughness (macro_S aR2 ), which is the macroscopic surface roughness, when measuring the surface roughness 100 ⁇ m outside in the direction from the cutting edge to the rake surface.
  • the first microscopic roughness (micro_S aR1 ), which is the microscopic surface roughness, is the second microscopic roughness, which is the microscopic surface roughness when measuring the surface roughness outside 100 ⁇ m in the rake surface direction from the cutting edge. It is smaller than the roughness (micro_S aR2 ), and when the surface roughness is measured within 100 ⁇ m from the cutting edge in the flank direction, the third macroscopic roughness (macro_S aF1 ), which is the macroscopic surface roughness, is measured outside 100 ⁇ m in the rake surface direction from the cutting edge.
  • micro_S aF2 which is the macroscopic surface roughness when measuring the surface roughness
  • the third microscopic roughness (macro_S aF2), which is the microscopic surface roughness when measuring the surface roughness within 100 ⁇ m in the direction from the cutting edge to the flank surface.
  • micro_S aF1 may be smaller than the fourth microscopic roughness (micro_S aF2 ), which is the microscopic surface roughness when measuring the surface roughness 100 ⁇ m outside in the rake surface direction from the cutting edge.
  • the first macroscopic roughness (macro_S aR1 ) is in the range of 0.1 ⁇ m ⁇ macro_S aR1 ⁇ 0.3 ⁇ m
  • the first microscopic roughness (micro_S aR1 ) is in the range of 0.05 ⁇ m ⁇ micro_S aR1 ⁇ 0.2 ⁇ m
  • the second macro roughness (macro_S aR2 ) is in the range of 0.2 ⁇ m ⁇ macro_S aR2 ⁇ 0.4 ⁇ m
  • the second microroughness (micro_S aR2 ) is in the range of 0.1 ⁇ m ⁇ micro_S aR1 ⁇ 0.25 ⁇ m
  • the third macroroughness (macro_S aF1 ) is in the range of 0.15 ⁇ m ⁇ macro_S aF1 ⁇ 0.35 ⁇ m
  • the third micro-roughness (micro_S aF1 ) is in the range of 0.1 ⁇ m ⁇ micro_S aR
  • the first to fourth macroroughness and the first to fourth microroughness may increase obliquely as the distance from the cutting edge increases.
  • the hard film has a composition that satisfies Formula 1 below and may be composed of one or more layers.
  • the thickness of the hard film may be in the range of 0.02 to 20 ⁇ m.
  • FIG. 1 is a cross-sectional schematic diagram for explaining a cutting tool having a hard film according to the present invention.
  • Figure 2 is a schematic diagram explaining macroscopic roughness and microscopic roughness in a hard film according to the present invention.
  • the hard film cutting tool according to the present invention includes a hard base material and a hard film formed on the hard base material.
  • the macroscopic surface roughness is measured as the first macroscopic roughness (macro_S aR1 ), outside 100 ⁇ m from the cutting edge in the rake surface direction.
  • the macroscopic surface roughness When measuring surface roughness, the macroscopic surface roughness is referred to as the second macroscopic roughness (macro_S aR2 ), and when measuring the surface roughness within 100 ⁇ m in the rake surface direction from the cutting edge, the microscopic surface roughness is referred to as the first microscopic roughness (micro_S aR1) . ), when measuring the surface roughness outside 100 ⁇ m from the cutting edge in the direction of the rake surface, the microscopic surface roughness is the second microscopic roughness (micro_S aR2 ), and when measuring the surface roughness within 100 ⁇ m in the direction from the cutting edge to the flank surface.
  • micro_S aR2 the second microscopic roughness
  • the macroscopic surface roughness is measured in the third macroroughness (macro_S aF1 ), and when the surface roughness is measured outside 100 ⁇ m in the direction from the cutting edge to the rake surface, the macroscopic surface roughness is measured in the fourth macroscopic roughness (macro_S aF2 ) in the direction from the cutting edge to the flank surface.
  • the microscopic surface roughness is referred to as the third microscopic roughness (micro_S aF1 )
  • the microscopic surface roughness is referred to as the fourth microscopic roughness.
  • the first macro illuminance is smaller than the 2nd macro illuminance
  • the 1st micro illuminance is smaller than the 2nd micro illuminance
  • the 3rd macro illuminance is smaller than the 4th macro illuminance
  • the 3rd micro illuminance is smaller than the 4th macro illuminance. becomes smaller than the fourth microscopic degree.
  • the roughness of the hard film is greatly affected by the roughness of the base material. If the roughness of the base material is high, the bonding strength between the hard film and the base material increases, but there is a problem in that the possibility of welding with the workpiece increases.
  • the hard film according to the present invention has a low surface roughness near the center of the cutting edge to improve welding resistance and provide a uniform core in the hard film. By allowing creation and growth to occur, stress is alleviated and chipping resistance against interrupted impacts during cutting can be improved.
  • the hard film in the area far from the center of the cutting edge has a higher surface roughness than the center of the cutting edge, making it possible to increase the bonding force of the hard film.
  • the hard film in the area far from the center of the cutting edge has a higher surface roughness than the center of the cutting edge, making it possible to increase the bonding force of the hard film.
  • the macroscopic roughness in the area within 100 ⁇ m from the cutting edge center on both the rake and flank surfaces becomes smaller than the macroscopic roughness in the area outside 100 ⁇ m from the cutting edge center.
  • microscopic roughness also becomes smaller in the area within 100 ⁇ m from the cutting edge than in the area outside 100 ⁇ m from the cutting edge center.
  • illuminance refers to the arithmetic mean height specified in ISO 25178. Illuminance is generally expressed by adopting one of several parameters specified in ISO 4287 and ISO 25178, but since these parameters alone cannot distinguish changes in the overall shape of the surface, it is easy to make errors in expressing the illuminance.
  • cemented carbide is made through the process of mixing hard particles and binder powder, pressing, and liquid sintering. During sintering, the binder is liquefied and solidifies again, forming irregularities on the surface of the hard base. It indicates the roughness of the wave. On the other hand, hard particles with an angled polygonal shape are adhered to the binder and protrude irregularly along the surface, showing minute roughness.
  • a micro 3D illuminance meter and analysis software using a laser confocal and white light interferometer were used to measure macroscopic illuminance and microscopic illuminance separately, and in the present invention, Keyence's VK-X3050 equipment and its own analysis software were used. .
  • macroscopic roughness refers to the arithmetic mean height expressed without additional correction after measurement
  • microscopic roughness refers to the arithmetic average height after removing irregular waves or large-scale components by additionally using the correction function (L-filter) of analysis software after measurement. It means average height.
  • This correction refers to correction using a filter corresponding to the cut-off value specified in JIS B0633-2001.
  • the macro-roughness and micro-roughness in the range 21 within 100 ⁇ m centered on the cutting edge 40 on the rake surface 20 are respectively the cutting edge 40. Centered around , the macroscopic roughness and microscopic roughness in the range outside 100 ⁇ m (22) become smaller than that. Meanwhile, the macro-roughness and micro-roughness in a range (31) within 100 ⁇ m from the flank surface (30) centered on the cutting edge (40) are the macroroughness in a range (32) outside 100 ⁇ m centered on the cutting edge (40), respectively. And the microscopic scale also becomes smaller.
  • Macro-roughness and micro-roughness are shown in Figure 2, where Figure 2(a) shows the surface roughness in the ranges 21 and 31 within 100 ⁇ m from the cutting edge 40, and Figure 2(b) shows the surface roughness within 100 ⁇ m from the cutting edge 40. It represents the surface roughness in the range (22, 32) outside the ⁇ m point.
  • the dotted line represents the macroscopic roughness and the solid line represents the microscopic roughness.
  • the surface roughness is in the range (21, 31) within 100 ⁇ m from the cutting edge (40) and the surface roughness is in the range outside 100 ⁇ m. Both macroscopic and microscopic roughness become smaller than the surface roughness in (22, 32).
  • the first macroscopic roughness (macro_S aR1 ) is in the range of 0.1 ⁇ m ⁇ macro_S aR1 ⁇ 0.3 ⁇ m
  • the first microscopic roughness (micro_S aR1 ) is in the range of 0.05 ⁇ m ⁇ micro_S aR1 ⁇ 0.2 ⁇ m
  • the second macro roughness (macro_S aR2 ) is in the range of 0.2 ⁇ m ⁇ macro_S aR2 ⁇ 0.4 ⁇ m
  • the second microscopic roughness (micro_S aR2 ) is in the range of 0.1 ⁇ m ⁇ micro_S aR1 ⁇ 0.25 ⁇ m
  • the third macroroughness is in the range.
  • micro_S aF1 is in the range of 0.15 ⁇ m ⁇ macro_S aF1 ⁇ 0.35 ⁇ m
  • the third micro-roughness (micro_S aF1 ) is in the range of 0.1 ⁇ m ⁇ micro_S aR1 ⁇ 0.25 ⁇ m
  • the fourth macro-roughness (macro_S aF2 ) is in the range of 0.25 ⁇ m ⁇ While the range of macro_S aR2 ⁇ 0.5 ⁇ m, the fourth microscopic roughness (micro_S aF2 ) may be in the range of 0.15 ⁇ m ⁇ micro_S aR1 ⁇ 0.35 ⁇ m.
  • the first to fourth macroroughnesses and the first to fourth microroughnesses are not only compared to each other, but also have a certain range of surface roughness to maintain harmonious welding resistance, chipping resistance, and bonding strength of the hard film.
  • the first macroroughness at the lake surface may be smaller than the second macroroughness, and at the same time, the first macroroughness may range from 0.1 to 0.3 ⁇ m and the second macroroughness may range from 0.2 to 0.4 ⁇ m.
  • the third macroroughness may be smaller than the fourth macroroughness, and at the same time, the range of the third macroroughness may be 0.15 to 0.35 ⁇ m, and the range of the fourth macroroughness may be 0.25 to 0.5 ⁇ m.
  • the first microroughness may be smaller than the second microroughness, and at the same time, the first microroughness may range from 0.05 to 0.2 ⁇ m and the second microroughness may range from 0.1 to 0.25 ⁇ m.
  • the third microroughness may be smaller than the fourth microroughness, and at the same time, the third microroughness may range from 0.1 to 0.25 ⁇ m, and the fourth micro roughness may range from 0.15 to 0.35 ⁇ m.
  • the bonding strength of the hard film may be problematic, and if it exceeds it, there may be problems with poor welding and chipping resistance.
  • the first macroscopic roughness and the third macroscopic roughness need to be smaller than the second and fourth macroscopic roughnesses, respectively, while being maintained within a certain range.
  • the reason why the roughness range on the flank surface is larger than that on the rake surface is because the adhesion of the hard film on the flank surface is required to be slightly greater.
  • chip welding occurs during the process of sweeping away the processed chip, and when the welded chip falls off, the hard film is torn, so it is important to suppress the chip welding itself as a top priority.
  • wear and tear occur actively due to direct contact with the workpiece, so wear resistance and the adhesion of the hard film are given more priority.
  • the first to fourth macroscopic roughnesses and the first to fourth microscopic roughnesses may increase obliquely as the distance from the cutting tool increases.
  • the hard film has a composition that satisfies Formula 1 below and may be composed of one or more layers.
  • Nitride thin films containing Al, Ti or Cr are known to have excellent wear resistance as well as heat resistance and chipping resistance.
  • This hard film may have any one of the metal elements Ta, Hf, Nb, Zr, V, Y, W, Mo, Si, and B in addition to Al, Ti, and Cr. By controlling these metal elements, the wear resistance, chipping resistance, and heat resistance of the hard film can be greatly improved.
  • a, b, and c determine the composition ratio of the metal elements Al, Ti, Cr, and Me. If the Al composition is large, wear resistance, oxidation resistance, and lubricity are superior, but if the Al content is too high, chipping resistance is reduced. Due to this increasing problem, it is preferable that the contents of Ti and Cr are 0 ⁇ a ⁇ 0.6 and 0 ⁇ b ⁇ 0.5.
  • the content is preferably 0 to 0.15.
  • the thickness of the hard film in the cutting tool according to the present invention may be in the range of 0.02 to 20 ⁇ m. If the thickness of the hard film is less than 0.02 ⁇ m, it is difficult to provide sufficient wear resistance, and if it exceeds 20 ⁇ m, internal stress increases and chipping properties may increase.
  • a hard film was formed using arc ion plating, a physical vapor deposition (PVD) method.
  • a paste containing diamond particles with a size of 1 to 5 ⁇ m was used, and arc targets of TiAl, AlCr, TiAlSi, and AlCrSi were used as targets for coating the hard film.
  • the hard base material was washed with wet microblasting and ultrapure water, and then, in a dry state, was mounted along the circumference at a predetermined distance in the radial direction from the central axis of the rotary table in the coating furnace.
  • the initial vacuum pressure in the coating furnace was reduced to 8.5 ⁇ 10 -5 Torr or less, and the temperature was heated to 400 ⁇ 600°C, and then a pulse bias voltage of -400 ⁇ -200V was applied to the rotating base material while rotating on the rotary table under an Ar gas atmosphere. was applied and ion bombardment was performed for 30 to 90 minutes.
  • the gas pressure for coating was maintained at 50 mTorr or less, preferably 40 mTorr or less, to form a film.
  • films were formed using TiAl, AlCr, TiAlSi, and AlCrSi targets at a bias voltage of -100 to -30V, arc current of 100 to 150A, and N 2 as a reaction gas at a pressure of 20 to 40 mtorr. Coating conditions were determined by the equipment. It may vary depending on characteristics and conditions.
  • Comparative examples and examples of the present invention were manufactured under the above conditions, and a hard film with a thickness of 3.0 to 3.5 ⁇ m was prepared using TiAl (composition ratio 50:50) and TiAlSi (composition ratio 30:60:10) targets.
  • Comparative Example 1 The film was formed as in ⁇ 2 and Example 1, and a hard film with a thickness of 3.5 to 4.0 ⁇ m was formed using TiAl (composition ratio 50:50), AlCr (composition ratio 70:30), and AlCrSi (composition ratio 60:30:10) targets. Film formation was performed in the same manner as Comparative Examples 4 to 5 and Example 2.
  • Information on the macroscopic roughness (macro_S a ) and microscopic roughness (micro_S a ) of about 100 ⁇ m from the cutting edge on the corresponding rake and flank surfaces is shown in Table 1 below.
  • Example 1 0.437 0.483 0.320 0.304 0.471 0.459 0.317 0.322 Comparative example 2 0.083 0.078 0.049 0.047 0.112 0.125 0.089 0.099 Comparative example 3 0.454 0.439 0.346 0.353 0.520 0.538 0.368 0.320 Comparative Example 4 0.107 0.090 0.044 0.058 0.134 0.102 0.094 0.095 Example 1 0.214 0.289 0.123 0.188 0.240 0.379 0.176 0.226 Example 2 0.222 0.301 0.140 0.215 0.267 0.394 0.200 0.253
  • Examples 1 and 2 have an overall low illuminance compared to Comparative Examples 1 and 3, and have an overall high illuminance compared to Comparative Examples 2 and 4. Additionally, the roughness within 100 ⁇ m from the cutting edge has a lower value than the roughness outside 100 ⁇ m.
  • a milling test was performed to evaluate the welding resistance, peeling resistance, and chipping resistance of the cutting tool manufactured as shown in Table 1 above, and was evaluated under the following conditions.
  • the cutting tool of the example had superior overall cutting performance compared to the cutting tool of the comparative example.
  • the roughness of the cutting tool was the lowest, but the adhesion between the hard base material and the hard film decreased, resulting in a decrease in tool life. Therefore, as in the example, it was confirmed that by having an appropriate roughness range for each part of the cutting tool, welding resistance, peeling resistance, and chipping resistance were improved, and tool life was improved along with stable machining in the form of normal wear.

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

Abstract

L'objectif de la présente invention est de fournir un outil de coupe revêtu d'un film dur ayant d'excellentes résistance au soudage et résistance à l'usure. Afin d'atteindre l'objectif ci-dessus, l'outil de coupe selon la présente invention comporte un film de revêtement dur, dans lequel : une première rugosité macroscopique (macro_SaR1), qui est une rugosité de surface macroscopique lorsque la rugosité de surface du film de revêtement dur est mesurée au plus à 100 µm dans la direction de la face de coupe à partir de l'arête de coupe du film de revêtement dur, peut être inférieure à une deuxième rugosité macroscopique (macro_SaR2), qui est une rugosité de surface macroscopique lorsque la rugosité de surface est mesurée à plus de 100 µm dans la direction de la face de coupe à partir de l'arête de coupe ; une première rugosité microscopique (micro_SaR1), qui est une rugosité de surface microscopique lorsque la rugosité de surface est mesurée au plus à 100 µm dans la direction de la face de coupe à partir de l'arête de coupe, peut être inférieure à une deuxième rugosité microscopique (micro_SaR2), qui est une rugosité de surface microscopique lorsque la rugosité de surface est mesurée à plus de 100 µm dans la direction de la face de coupe à partir de l'arête de coupe ; une troisième rugosité macroscopique (macro_SaF1), qui est une rugosité de surface macroscopique lorsque la rugosité de surface est mesurée au plus à 100 µm à partir de l'arête de coupe dans la direction de la face de dépouille, peut être inférieure à une quatrième rugosité macroscopique (macro_SaF2), qui est une rugosité de surface macroscopique lorsque la rugosité de surface est mesurée à plus de 100 µm à partir de l'arête de coupe dans la direction de la face de coupe ; et une troisième rugosité microscopique (micro_SaF1), qui est une rugosité de surface microscopique lorsque la rugosité de surface est mesurée au plus à 100 µm à partir de l'arête de coupe dans la direction de la face de dépouille, peut être inférieure à une quatrième rugosité microscopique (micro_SaF2), qui est une rugosité de surface microscopique lorsque la rugosité de surface est mesurée à plus de 100 µm à partir de l'arête de coupe dans la direction de la face de coupe.
PCT/KR2023/009072 2022-09-29 2023-06-28 Film de revêtement dur pour outil de coupe WO2024071588A1 (fr)

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KR10-2022-0124668 2022-09-29
KR1020220124668A KR20240044987A (ko) 2022-09-29 2022-09-29 절삭공구용 경질 피막

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001341007A (ja) * 2000-06-01 2001-12-11 Sumitomo Electric Ind Ltd 被覆切削工具
KR20020043218A (ko) * 2000-07-12 2002-06-08 오카야마 노리오 피복 절삭 공구
JP2005279821A (ja) * 2004-03-29 2005-10-13 Kyocera Corp スローアウェイチップ及びその製造方法
JP2006272515A (ja) * 2005-03-30 2006-10-12 Kyocera Corp 表面被覆切削工具
JP2011101910A (ja) * 2009-11-10 2011-05-26 Sumitomo Electric Hardmetal Corp ダイヤモンド被覆切削工具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001341007A (ja) * 2000-06-01 2001-12-11 Sumitomo Electric Ind Ltd 被覆切削工具
KR20020043218A (ko) * 2000-07-12 2002-06-08 오카야마 노리오 피복 절삭 공구
JP2005279821A (ja) * 2004-03-29 2005-10-13 Kyocera Corp スローアウェイチップ及びその製造方法
JP2006272515A (ja) * 2005-03-30 2006-10-12 Kyocera Corp 表面被覆切削工具
JP2011101910A (ja) * 2009-11-10 2011-05-26 Sumitomo Electric Hardmetal Corp ダイヤモンド被覆切削工具

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