JP2021529098A - 被覆切削工具 - Google Patents
被覆切削工具 Download PDFInfo
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- JP2021529098A JP2021529098A JP2020572770A JP2020572770A JP2021529098A JP 2021529098 A JP2021529098 A JP 2021529098A JP 2020572770 A JP2020572770 A JP 2020572770A JP 2020572770 A JP2020572770 A JP 2020572770A JP 2021529098 A JP2021529098 A JP 2021529098A
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- cutting tool
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- 238000005520 cutting process Methods 0.000 title claims abstract description 67
- 239000002356 single layer Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 70
- 239000010410 layer Substances 0.000 claims description 44
- 238000002441 X-ray diffraction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 229910010037 TiAlN Inorganic materials 0.000 claims description 4
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011195 cermet Substances 0.000 claims description 2
- 229910052594 sapphire Inorganic materials 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000012937 correction Methods 0.000 description 6
- 238000007514 turning Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
-
- 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
- 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
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/022—Mechanical properties
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- 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
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
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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
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- C—CHEMISTRY; METALLURGY
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- 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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- 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
- 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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- 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
- C23C16/405—Oxides of refractory metals or yttrium
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- 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
- C23C16/44—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 method of coating
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- 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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- 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
- C23C28/048—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 with layers graded in composition or physical properties
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/40—Coatings including alternating layers following a pattern, a periodic or defined repetition
- C23C28/42—Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by the composition of the alternating layers
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/40—Coatings including alternating layers following a pattern, a periodic or defined repetition
- C23C28/44—Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/10—Coatings
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Abstract
Description
[式中、I(hkl)は、(hkl)反射の測定強度(積分面積)であり、I0(hkl)は、ICDDのPDFカード番号42−1489による標準強度であり、nは反射数であり、計算で使用される反射は、(1 1 1)、(2 0 0)、(2 2 0)、(3 1 1)、(3 3 1)、(4 2 0)、(4 2 2)および(5 1 1)である]
によって定義され、TC(331)+TC(422)>5、好ましくは>6である。
「切削工具」という用語は、本明細書において、インサート、エンドミルまたはドリルなどの、金属切削用途に好適な切削工具を表すことが意図される。適用領域は、例えば、鋼などの金属の旋削、フライス加工またはドリル加工でありうる。
層の集合組織または方位を調査するために、PIXcel検出器を備えたPANalytical CubiX3 回折計を使用して、逃げ面のX線回折(XRD)を行った。被覆切削工具を試料ホルダーに取り付け、試料の逃げ面が試料ホルダーの基準面に平行であり、さらに逃げ面が適切な高さにあることを確実にした。Cu−Kα線を測定に使用し、電圧は45kV、および電流は40mAであった。1/2度の散乱防止スリットおよび1/4度の発散スリットを使用した。被覆切削工具の回折強度は、20°〜140°2θの範囲、すなわち、10〜70°の範囲の入射角θにわたって測定した。データのバックグラウンドフィッティング、Cu−Kα2ストリッピングおよびプロファイルフィッティングを含むデータ分析は、PANalyticalのX’Pert HighScore Plusソフトウェアを使用して行った。その後、このプログラムからの出力(プロファイルフィッティングした曲線の積分ピーク面積)を使用して、本発明の被膜を強度比および/または関係に関して定義付けた。
フライス加工、混合、噴霧乾燥、プレス加工および焼結を含む従来のプロセスを利用して、超硬合金基材を製作した。焼結した基材を、10,000個の1/2インチの大きさの切削インサートを収容することができる、Ionbondのサイズ530型の放射状CVD反応器でCVD被覆した。超硬合金基材(インサート)のISO型形状は、CNMG−120408−PMであった。超硬合金の組成は、7.2wt%のCo、2.9wt%のTaC、0.5wt%のNbC、1.9wt%のTiC、0.4wt%のTiN、および残部のWCであった。試料の概要を表1に示す。
約0.4μmのTiNの最初の最内被膜を、400mbarおよび885℃のプロセスですべての基材に蒸着させた。48.8vol%のH2、48.8vol%のN2および2.4vol%のTiCl4の気体混合物を使用した。
上の方法セクションに開示される通りXRD分析を行った。薄膜補正は強度データに適用しなかった。試料についてのα−Al2O3に由来するピーク110、113、024、116、0 0 12および0 1 14の強度を表3に提示し、値は、0 0 12の強度が100%に設定されるように正規化した。
ハリスの式:
[式中、I(hkl)は、(hkl)反射の測定強度(積分面積)であり、I0(hkl)は、ICDDのPDFカード番号42−1489による標準強度であり、nは反射数であり、計算で使用される反射は、(1 1 1)、(2 0 0)、(2 2 0)、(3 1 1)、(3 3 1)、(4 2 0)、(4 2 2)および(5 1 1)である]。
試料を2つの異なる金属切削試験で評価した。切削試験の前に、被覆切削工具のすくい面にブラスト処理を行った。使用したブラスタースラリーは水中20vol%のアルミナからなり、切削インサートのすくい面とブラスタースラリーの方向との間の角度は90度であった。スラリーのガンに対する圧力は、摩耗試験されたすべての試料に対して2.2バールであった。
試料を、加工物材料SS2541(700×180mmの棒材)を切削する乾燥旋削試験で試験した。前記棒材に、直径178mm〜直径60mmの面旋削を施した。以下の切削データを使用した:
切削速度、Vc:210m/分
送り、fn:0.35mm/回転
切削深度、ap:2mm
上記に従ってブラスト処理した被覆切削工具を、以下の切削データを使用して、玉軸受鋼Ovako825B(100CrMo7−3)で、長手方向の旋削で試験した;
切削速度vc:220m/分
切削送り、fn:0.3mm/回転
切削深度、ap:2mm
インサート形式:CNMG120408−PM
水混和性金属加工液を使用した。
切削工具1つにつき1つの切刃を評価した。
Claims (15)
- 基材および被膜を含む被覆切削工具であって、被膜が、
内側のα−Al2O3多層および外側のα−Al2O3単層
を含み、
外側のα−Al2O3単層の厚さが1〜10μm、好ましくは3〜5μmであり、
内側のα−Al2O3多層の厚さが、内側のα−Al2O3多層の厚さと外側のα−Al2O3単層の厚さの合計の35%以下であり、
前記α−Al2O3多層が、交互のα−Al2O3の副層と、TiCO、TiCNO、AlTiCOまたはAlTiCNOの副層からなり、前記内側のα−Al2O3多層が、少なくとも5つのα−Al2O3の副層を含む、被覆切削工具。 - 内側のα−Al2O3多層が、外側のα−Al2O3単層に隣接する、請求項1に記載の被覆切削工具。
- 内側のα−Al2O3多層と外側のα−Al2O3単層の厚さの合計が、2〜16μm、好ましくは3〜8μm、最も好ましくは4〜6μmである、請求項1または2に記載の被覆切削工具。
- 内側のα−Al2O3多層の周期が、50〜900nm、好ましくは70〜300nm、より好ましくは70〜150nmであり、1周期が、1つのα−Al2O3の副層と、1つのTiCO、TiCNO、AlTiCOまたはAlTiCNOの副層を含む、請求項1から3のいずれか一項に記載の被覆切削工具。
- 内側のα−Al2O3多層の厚さが、内側のα−Al2O3多層の厚さと外側のα−Al2O3単層の厚さの合計の12%〜35%、好ましくは15%〜30%、最も好ましくは18%〜25%である、請求項1から4のいずれか一項に記載の被覆切削工具。
- 外側のα−Al2O3単層と組み合わせた内側のα−Al2O3多層が、20°〜140°のθ−2θスキャンにわたるXRD回折を示し、1 1 3回折ピークの強度(ピーク面積)すなわちI(1 1 3)、1 1 6回折ピークの強度(ピーク面積)すなわちI(1 1 6)および0 2 4回折ピークの強度(ピーク面積)すなわちI(0 2 4)に対する0 0 12回折ピークの強度(ピーク面積)すなわちI(0 0 12)が、I(0 0 12)/I(1 1 3)>1、I(0 0 12)/I(1 1 6)>1かつI(0 0 12)/I(0 2 4)>1である、請求項1から5のいずれか一項に記載の被覆切削工具。
- 0 0 12回折ピークの強度(ピーク面積)すなわちI(0 0 12)に対する0 1 14回折ピークの強度(ピーク面積)すなわちI(0 1 14)が、I(0 1 14)/I(0 0 12)<2である、請求項6に記載の被覆切削工具。
- 1 1 0回折ピークの強度(ピーク面積)すなわちI(1 1 0)と、1 1 3回折ピークの強度(ピーク面積)すなわちI(1 1 3)と、0 2 4回折ピークの強度(ピーク面積)すなわちI(0 2 4)との関係が、I(110)>I(113)およびI(024)のそれぞれである、請求項6または7に記載の被覆切削工具。
- 0 0 12回折ピークの強度(ピーク面積)すなわちI(0 0 12)と、1 1 0回折ピークの強度(ピーク面積)すなわちI(1 1 0)との関係が、I(0 0 12)>I(110)である、請求項6から8のいずれか一項に記載の被覆切削工具。
- 被覆切削工具が、基材と内側のα−Al2O3多層との間に位置する、少なくとも1つのTiC、TiN、TiAlNまたはTiCN、好ましくはTiCNの層を含む、請求項1から9のいずれか一項に記載の被覆切削工具。
- TiC、TiN、TiAlNまたはTiCN層の厚さが2〜15μmである、請求項10に記載の被覆切削工具。
- 被膜の最外層が、前記外側のα−Al2O3単層である、請求項1から12のいずれか一項に記載の被覆切削工具。
- 基材が、超硬合金、サーメット、セラミック、高速度鋼またはcBNのものである、請求項1から13のいずれか一項に記載の被覆切削工具。
- 基材が、3〜14wt%のCoおよび50wt%より多くのWCを含む超硬合金のものである、請求項1から14のいずれか一項に記載の被覆切削工具。
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CN112292482B (zh) | 2023-09-08 |
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JP7407747B2 (ja) | 2024-01-04 |
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