JP6296058B2 - 被覆切削工具 - Google Patents
被覆切削工具 Download PDFInfo
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- JP6296058B2 JP6296058B2 JP2015526364A JP2015526364A JP6296058B2 JP 6296058 B2 JP6296058 B2 JP 6296058B2 JP 2015526364 A JP2015526364 A JP 2015526364A JP 2015526364 A JP2015526364 A JP 2015526364A JP 6296058 B2 JP6296058 B2 JP 6296058B2
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- 238000005520 cutting process Methods 0.000 title claims description 67
- 239000010410 layer Substances 0.000 claims description 207
- 239000000758 substrate Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 26
- 239000011247 coating layer Substances 0.000 claims description 25
- 238000009792 diffusion process Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 239000011195 cermet Substances 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 26
- 238000000034 method Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 238000005422 blasting Methods 0.000 description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000005480 shot peening Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910007926 ZrCl Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Chemical Vapour Deposition (AREA)
Description
(1)基材と、該基材の表面に形成された被覆層とを含む被覆切削工具において、
前記被覆層は、上部層と下部層とを有し、
前記下部層は前記基材の表面に形成され、Ti、Zr、Hf、V、Nb、Ta、Cr、Mo、WおよびSiからなる群より選ばれる少なくとも1種の元素と、C、N、BおよびOからなる群より選ばれる少なくとも1種の元素とで構成される化合物の1層または2層以上から構成され、前記下部層のクラック間隔の平均値Xが10〜80μmであり、
前記上部層は前記下部層の表面に形成され、酸化アルミニウム層を含み、前記酸化アルミニウム層のクラック間隔の平均値Zが20〜100μmであり、
0<Z−X<90の関係を満たす被覆切削工具。
(2)前記下部層のクラック間隔の平均値Xと前記酸化アルミニウム層のクラック間隔の平均値Zとが20<Z−X<75の関係を満たす(1)の被覆切削工具。
(3)前記下部層の前記基材側には、前記基材の成分が前記下部層に拡散した拡散層が形成され、前記拡散層の平均層厚Tdと前記下部層の平均層厚Tuは0.1≦Td/Tu≦0.8の関係を満たす(1)または(2)の被覆切削工具。
(4)前記下部層に拡散した前記基材の成分は、W、Co、Ni、Ti、Ta、Nb、Mo、Cr、VおよびZrからなる群より選ばれる少なくとも1種の元素である(1)〜(3)のいずれかの被覆切削工具。
(5)前記被覆層全体の層厚が3〜30μmの平均層厚を有し、
前記下部層の層厚が1.5〜20μmの平均層厚を有し、
前記上部層の層厚が1〜15μmの平均層厚を有する前記下部層の層厚が1.5〜20μmの平均層厚を有する(1)〜(4)のいずれかの被覆切削工具。
(6)前記上部層は、前記下部層と接する表面に、TiとAlからなる元素と、C、NおよびOからなる群より選ばれる少なくとも1種の元素とで構成される化合物からなる中間層を含む(1)〜(5)のいずれかの被覆切削工具。
(7)前記基材は、超硬合金またはサーメットのいずれかである(1)〜(6)のいずれかの被覆切削工具。
本発明の被覆切削工具は、基材とその基材の表面に形成された被覆層とを含む。被覆切削工具の種類として、具体的には、フライス加工用または旋削加工用刃先交換型切削インサート、ドリル、エンドミルなどを挙げることができる。
本発明の基材は、例えば、超硬合金、サーメット、セラミックス、立方晶窒化硼素焼結体、ダイヤモンド焼結体および高速度鋼などを挙げることができる。その中でも、基材が超硬合金またはサーメットであると、耐摩耗性および耐欠損性に優れるので、さらに好ましい。
本発明の被覆層は、上部層と下部層とを有する。被覆層全体の平均層厚は、3〜30μmであることが好ましい。3μm未満であると、耐摩耗性に劣る場合があり、30μmを超えると、基材との密着性および耐欠損性が低下する場合がある。その中でも、3〜20μmであるとさらに好ましい。
本発明の下部層は基材の表面に形成され、Ti、Zr、Hf、V、Nb、Ta、Cr、Mo、WおよびSiからなる群より選ばれる少なくとも1種の元素と、C、N、BおよびOからなる群より選ばれる少なくとも1種の元素とで構成される化合物の1層または2層以上から構成されるものである。
本発明の上部層は、下部層の表面に形成され、本発明の上部層の少なくとも1層は、酸化アルミニウム層(以下、Al2O3層)を含む。Al2O3層の結晶型は特に限定されず、α型、β型、δ型、γ型、κ型、χ型、擬τ型、η型およびρ型等が挙げられる。これらの中でも、Al2O3層の結晶型は、高温で安定なα型、または中間層とAl2O3層との密着性に優れるκ型であると好ましい。特に、高速切削など切削に関与する領域が高温になる場合において、Al2O3層がα型Al2O3層であると、欠損やチッピングを起こしにくくなる。
本発明の被覆切削工具における被覆層を構成する各層の形成方法として、例えば、以下の方法を挙げることができる。
切削速度:450m/min、
送り:0.30mm/rev、
切り込み:2.0mm、
クーラント:有り、
評価項目:試料が欠損または最大逃げ面摩耗幅が0.3mmに至ったときを工具寿命とし、工具寿命までの加工枚数を測定した。
Claims (5)
- 基材と、該基材の表面に形成された被覆層とを含む被覆切削工具において、
前記被覆層は、上部層と下部層とを有し、
前記下部層は前記基材の表面に形成され、TiN、TiCN、ZrCN、又はCrCNを含む1層または2層以上から構成され、前記下部層のクラック間隔の平均値Xが10〜80μmであり、
前記上部層は前記下部層の表面に形成され、酸化アルミニウム層と、酸化アルミニウム層の表面側に形成された表面層を含み、表面層の組成がTiNであり、表面層の平均層厚が0.3〜1.0μmであり、前記酸化アルミニウム層のクラック間隔の平均値Zが20〜100μmであり、
11≦Z−X≦28の関係を満たし、
前記被覆層全体の層厚が3〜30μmの平均層厚を有し、
前記下部層の層厚が1.5〜20μmの平均層厚を有し、
前記上部層の層厚が1〜15μmの平均層厚を有する、被覆切削工具。 - 前記下部層の前記基材側には、前記基材の成分が前記下部層に拡散した拡散層が形成され、前記拡散層の平均層厚Tdと前記下部層の平均層厚Tuは0.1≦Td/Tu≦0.8の関係を満たす請求項1に記載の被覆切削工具。
- 前記下部層に拡散した前記基材の成分は、W、Co、Ni、Ti、Ta、Nb、Mo、Cr、VおよびZrからなる群より選ばれる少なくとも1種の元素である請求項2に記載の被覆切削工具。
- 前記上部層は、前記下部層と接する表面に、TiとAlからなる元素と、C、NおよびOからなる群より選ばれる少なくとも1種の元素とで構成される化合物からなる中間層を含む請求項1〜3のいずれか1項に記載の被覆切削工具。
- 前記基材は、超硬合金またはサーメットのいずれかである請求項1〜4のいずれか1項に記載の被覆切削工具。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2013143416 | 2013-07-09 | ||
JP2013143416 | 2013-07-09 | ||
PCT/JP2014/068245 WO2015005364A1 (ja) | 2013-07-09 | 2014-07-09 | 被覆切削工具 |
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JPWO2015005364A1 JPWO2015005364A1 (ja) | 2017-03-02 |
JP6296058B2 true JP6296058B2 (ja) | 2018-03-20 |
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JP6555514B2 (ja) * | 2015-07-06 | 2019-08-07 | 三菱マテリアル株式会社 | 表面被覆切削工具 |
JP6776371B2 (ja) * | 2016-12-26 | 2020-10-28 | 京セラ株式会社 | 切削インサート |
JP6521130B2 (ja) * | 2017-04-21 | 2019-05-29 | 株式会社タンガロイ | 被覆切削工具 |
JP6999383B2 (ja) | 2017-11-29 | 2022-01-18 | 株式会社タンガロイ | 被覆切削工具 |
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JP3833288B2 (ja) * | 1994-10-04 | 2006-10-11 | 住友電工ハードメタル株式会社 | 被覆硬質合金 |
JP5736600B2 (ja) * | 2011-09-22 | 2015-06-17 | 株式会社タンガロイ | 被覆切削工具 |
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2014
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WO2015005364A1 (ja) | 2015-01-15 |
JPWO2015005364A1 (ja) | 2017-03-02 |
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