JP6324990B2 - 被覆切削工具及びその製造方法 - Google Patents
被覆切削工具及びその製造方法 Download PDFInfo
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- JP6324990B2 JP6324990B2 JP2015548629A JP2015548629A JP6324990B2 JP 6324990 B2 JP6324990 B2 JP 6324990B2 JP 2015548629 A JP2015548629 A JP 2015548629A JP 2015548629 A JP2015548629 A JP 2015548629A JP 6324990 B2 JP6324990 B2 JP 6324990B2
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- aluminum oxide
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- 238000005520 cutting process Methods 0.000 title claims description 177
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 46
- 239000010936 titanium Substances 0.000 claims description 46
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 37
- 238000000576 coating method Methods 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 30
- 238000005422 blasting Methods 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 9
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 3
- -1 oxy titanium Chemical compound 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 description 34
- 238000012360 testing method Methods 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 238000007514 turning Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 238000005229 chemical vapour deposition Methods 0.000 description 9
- 238000013532 laser treatment Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005555 metalworking Methods 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011195 cermet Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
-
- 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
- B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
-
- 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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- 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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- 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
- C23C16/56—After-treatment
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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
- 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
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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
- C23C28/042—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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- 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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- 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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- 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
- B23B2224/28—Titanium carbide
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- 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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- 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
- B23B2224/36—Titanium nitride
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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
- B23B2228/04—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner applied by chemical vapour deposition [CVD]
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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
- B23B2228/08—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner applied by physical vapour deposition [PVD]
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Description
前記すくい面、前記逃げ面、及び前記切れ刃それぞれを越えて延在している表面領域上に前記第1層を堆積するステップと、
前記第1層で被覆された前記表面領域上に、内側層、中間層、及び外側層からなるサンドイッチ構造を備える前記第2層を堆積するステップと、
選択的に、前記外側層を通過して前記中間層を照射するために準備され、前記中間層によって吸収されるレーザ光に、前記サンドイッチ構造が曝露され、前記外側層を剥離によって除去するステップと、
それによって、前記開口が、切れ刃の少なくとも一部の幅を越え、かつ、直交する方向で切れ刃の少なくとも一部に沿って延在し、前記外側層の開口を通じて、前記内側層又は中間層を露出するステップ。
本発明の一実施態様による被覆切削工具が製造された。先ず、7.5重量%のCo及び残部WCの組成を有し、Hc値が13kA/m(DIN IEC 60404−7に準拠する、Foerster Koerzimat CS1.096を使用)、かつHv3硬さが15GPaである超硬基材 CNMG120408−PMが、圧粉及びその圧粉体を焼結することによって製造された。被膜が堆積される前に、基材は、湿式ブラスティングにより、約50μmの面取りが施された。
図5に示されるように、異なる湿式ブラスティング操作を除き、上面ブラスチィングのみが施されたこと以外、試料1と同様に、被覆切削工具を製造した。
7.5重量%のCo及び残部WCの組成を有し、Hc値が13kA/m(DIN IEC 60404−7に準拠する、Foerster Koerzimat CS1.096を使用)、かつHv3硬さが15GPaである基材 CNMG120408−PMと、9μmのTi(C,N)の第1層、4.5μmのα−Al2O3の第2層、及びTi(C,N)の彩色層を有する被膜とを備えた、従来技術による切削工具を、レーザ操作を行わなかったこと以外は、試料2と同様に製造した。上面ブラスティング操作は、すくい面の彩色層を除去した。
第2アルミニウム酸化物層を除去しなかったこと以外は、試料2と同様に、切削工具を製造した。
フランク摩耗及びクレータ摩耗につき、軸受鋼(Ovako 825B、Tibnor)を旋削することによって、試料2〜4から得た切削工具インサートを試験した。試験条件は、切削深さ2mm、切削速度240m/分、送り0.3mm/rev、及び冷却剤使用であった。フランク摩耗に対する工具寿命の判断基準は、光学顕微鏡ですくい面と逃げ面のそれぞれを観察し、クレータ摩耗が0.2mm2を超え、かつフランク摩耗Vbが0.4mmを超えたときとした。工具寿命を表1に示す。
試料1〜4の被覆切削工具は、球状黒鉛鋳鉄材 SS0717の表面で、断続切削操作を含み、冷却剤なしの次の条件化で試験された。
切削速度、Vc 170m/分
送り、fn 0.1mm/rev
切削深さ、ap 2mm
比較例と同様に、本発明のいくつかの実施態様による被覆切削工具が、次のように製造された。先ず、4.1重量%のCo及び残部WCの組成を有し、Hc値が16kA/m(DIN IEC 60404−7に準拠する、Foerster Koerzimat CS1.096を使用)、かつHv3硬さが16GPaである超硬基材 CNMG120408−PMが、圧粉及びその圧粉体を焼結することによって製造された。被膜が堆積される前に、基材は、ブラッシングと、それに続く、フラッシグ工程由来のいかなるプラスチック残渣を除去するための低圧水中におけるアルミナグリッドでのブラストにより、円半径(H=W=45μm)測定で約45μmの面取りが施された。ブラスティング圧力は1.8barであり、アルミナグリッドはF150メッシュであった(FEPA 42−1:2006)。
試料7の被覆切削工具1a、2a、2b、2c、2d、及び3aを靱性試験に供した。
切削速度Vc:130m/分
切削深さap:1.5mm
水混和性金属加工液を用いた。
試料7における、表1による被覆切削工具、即ち、工具1a、1b、2a、2b、2c、2d、3aは、軸受鋼(100CrMo7−3)の縦送りの旋削で、次の切削条件により、試験された。
切削速度Vc:240m/分
切削送りf:0.3mm/revolution
切削深さaf:2mm
インサート形式:CNMG120408−PM
水混和性金属加工液を用いた。
切削工具ごとの切れ刃を評価した。
試料7における、表1による被覆切削工具、即ち、工具1a、1b、2a、2b、2c、2d、3aは、軸受鋼(100CrMo7−3)の縦送りの旋削で、次の切削条件により、試験された。
切削速度Vc:255m/分
切削送りf:0.3mm/revolution
切削深さaf:2mm
インサート形式:CNMG120408−PM
水混和性金属加工液を用いた。
切削工具ごとの切れ刃を評価した。
試料7における、表1による被覆切削工具、即ち、工具1a、1b、2a、2b、2c、2d、3aは、軸受鋼(100CrMo7−3)の縦送りの旋削で、次の切削条件により、試験された。
切削速度Vc:270m/分
切削送りf:0.3mm/revolution
切削深さaf:2mm
インサート形式:CNMG120408−PM
水混和性金属加工液を用いた。
切削工具ごとの切れ刃を評価した。
Claims (15)
- すくい面、逃げ面、並びに、前記すくい面と前記逃げ面との交差部で、前記すくい面に沿う第1軸W及び前記逃げ面に沿う第2軸Hを伴う内接された楕円によって描かれた面取りエッジを伴う切れ刃を有する基材と、
厚さがTであり、第1層及び前記第1層に堆積されている第2層を有する被膜と、
を備える被覆切削工具であって、
前記第2層が、内側アルミニウム酸化物層、中間層、及び外側アルミニウム酸化物層からなるサンドイッチ構造を含み、
前記内側アルミニウム酸化物層が、前記外側アルミニウム酸化物層の開口を通じて露出されており、前記開口が、切れ刃の少なくとも一部の幅を越え、直交する方向で切れ刃の少なくとも一部に沿って、すくい面から逃げ面へ少なくともH+T+2mmにわたって延在していること、
を特徴とする被覆切削工具。 - 前記開口が、切れ刃の少なくとも全幅を越えて延在している、請求項1に記載の被覆切削工具。
- 前記開口が、すくい面へ延在している、請求項1又は2に記載の被覆切削工具。
- 前記開口が、すくい面の第1ランドへ部分的に延在している、請求項1〜3のいずれか1項に記載の被覆切削工具。
- 前記開口が、すくい面へ、少なくとも50μmにわたって延在している、請求項1〜4のいずれか1項に記載の被覆切削工具。
- 前記開口が、すくい面へ、少なくとも100μmにわたって延在している、請求項1〜5のいずれか1項に記載の被覆切削工具。
- 前記内側アルニウム酸化物層が、切れ刃の少なくとも全幅を越えて露出されている、請求項1〜6のいずれか1項に記載の被覆切削工具。
- 前記内側及び外側アルミニウム酸化物層が、α−Al2O3でできている、請求項1〜7のいずれか1項に記載の被覆切削工具。
- 前記内側及び外側アルミニウム酸化物層の厚さが、2〜10μmである、請求項1〜8のいずれか1項に記載の被覆切削工具。
- 前記内側アルミニウム酸化物層の厚さが、1〜10μm、好ましくは、2〜5μmであり、前記外側アルミニウム酸化物層の厚さが、2〜20μm、好ましくは、4〜10μmである、請求項1〜8のいずれか1項に記載の被覆切削工具。
- 前記第1層が、炭化チタン、窒化チタン、炭窒化チタン、オキシ炭化チタン、及びオキシ炭窒化チタンから選ばれる1種以上からなり、2〜15μmの厚さを有する、請求項1〜10のいずれか1項に記載の被覆切削工具。
- 下記のステップを含む、すくい面、逃げ面、及び、前記すくい面と前記逃げ面の交差部に切れ刃を有する基材と、第1層及び第1層に堆積されている第2層を有する被膜と、を備える被覆切削工具の製造方法であって、
前記すくい面、前記逃げ面、及び前記切れ刃それぞれを越えて延在している表面領域上に前記第1層を堆積するステップと、
前記第1層によって被覆された前記表面領域上に、内側アルミニウム酸化物層、中間層、及び外側アルミニウム酸化物層からなるサンドイッチ構造を備える前記第2層を堆積するステップと、
前記外側アルミニウム酸化物層を通過して前記中間層を照射するために準備され、前記中間層によって吸収されるレーザ光に、前記サンドイッチ構造が曝露され、前記外側アルミニウム酸化物層を剥離によって除去するステップと、
それによって、前記外側アルミニウム酸化物層の開口を通じて前記内側アルミニウム酸化物層を露出するステップであって、前記開口が、切れ刃の少なくとも一部の幅を越え、直交する方向で切れ刃の少なくとも一部に沿って、すくい面から逃げ面へ少なくともH+T+2mmにわたって延在するステップとを含む、方法。 - 前記外側アルミニウム酸化物層を除去するステップに続いて、前記被覆切削工具をブラスティングすることをさらに含む、請求項12に記載の方法。
- 前記ブラスティングが、少なくともエッジで、露出されている中間層を除去する、請求項13に記載の方法。
- 前記外側アルミニウム酸化物層を除去するステップの前に、前記被覆切削工具をブラスティングすることをさらに含む、請求項12に記載の方法。
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PCT/EP2013/077665 WO2014096348A1 (en) | 2012-12-21 | 2013-12-20 | Coated cutting tool and method for manufacturing the same |
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US11376675B2 (en) * | 2014-04-23 | 2022-07-05 | Korloy Inc. | Cutting tool having partially-removed film formed thereon |
KR101537718B1 (ko) * | 2014-04-23 | 2015-07-20 | 한국야금 주식회사 | 부분적으로 제거된 피막이 형성된 절삭공구 |
DE102015213755A1 (de) * | 2015-07-21 | 2017-01-26 | Kennametal Inc. | Verfahren zur Herstellung eines Zerspanungswerkzeugs sowie Zerspanungswerkzeug |
DE102015222491B4 (de) * | 2015-11-13 | 2023-03-23 | Kennametal Inc. | Schneidwerkzeug und Verfahren zu dessen Herstellung |
FR3046097B1 (fr) * | 2015-12-29 | 2018-07-13 | Mecachrome France | Procede d’affutage de plaquette d’usinage et plaquette affutee correspondante. |
CN107570772B (zh) * | 2017-09-07 | 2020-04-28 | 株洲钻石切削刀具股份有限公司 | 一种表面具有多种不同涂层的切削刀片 |
CN107775538A (zh) * | 2017-09-15 | 2018-03-09 | 富耐克超硬材料股份有限公司 | 金刚石涂层刀具及其后处理方法 |
JP6928248B2 (ja) * | 2017-09-29 | 2021-09-01 | 三菱マテリアル株式会社 | ダイヤモンド被覆回転切削工具 |
CN109158625A (zh) * | 2018-08-14 | 2019-01-08 | 株洲钻石切削刀具股份有限公司 | 一种后刀面具有不同涂层的切削刀片 |
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CN104870686A (zh) | 2015-08-26 |
EP2935647A1 (en) | 2015-10-28 |
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