KR20180128531A - 표면 피복 절삭 공구 및 그 제조 방법 - Google Patents
표면 피복 절삭 공구 및 그 제조 방법 Download PDFInfo
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- KR20180128531A KR20180128531A KR1020167031890A KR20167031890A KR20180128531A KR 20180128531 A KR20180128531 A KR 20180128531A KR 1020167031890 A KR1020167031890 A KR 1020167031890A KR 20167031890 A KR20167031890 A KR 20167031890A KR 20180128531 A KR20180128531 A KR 20180128531A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims description 39
- 239000010410 layer Substances 0.000 claims abstract description 254
- 239000013078 crystal Substances 0.000 claims abstract description 139
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- 238000000576 coating method Methods 0.000 claims abstract description 53
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 33
- 150000004767 nitrides Chemical class 0.000 claims abstract description 26
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 16
- 239000011780 sodium chloride Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 69
- 238000005229 chemical vapour deposition Methods 0.000 claims description 22
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- 239000010936 titanium Substances 0.000 description 31
- 238000006243 chemical reaction Methods 0.000 description 26
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 15
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- 230000007423 decrease Effects 0.000 description 8
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- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 5
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- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
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- 229910009043 WC-Co Inorganic materials 0.000 description 2
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
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- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
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- 229910052582 BN Inorganic materials 0.000 description 1
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- 241001562081 Ikeda Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
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- 238000000779 annular dark-field scanning transmission electron microscopy Methods 0.000 description 1
- -1 argon ions Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
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- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- 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 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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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
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
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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
- C23C16/22—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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Abstract
Description
도 1b는 도 1a의 파선 박스를 확대하여 도시한 도면 대용 사진이다.
도 2는 도 1b에 있어서의 화살표 방향의 AlTiN의 조성비의 변동을 설명하는 그래프이다.
도 3a는 도 1a를 확대하여 도시한 도면 대용 사진이다.
도 3b는 도 3a를 더욱 확대하여 도시한 도면 대용 사진이다.
도 4는 전자선 후방 산란 회절 장치를 이용하여 해석한 제1 경질 피막층에 포함되는 결정립의 교차각 도수 분포의 일례를 도시하는 그래프이다.
도 5는 본 실시형태에 따른 표면 피복 절삭 공구의 제조 방법에 이용하는 화학 증착(CVD) 장치를 모식적으로 도시하는 모식도이다.
Claims (8)
- 기재와, 이 기재의 표면에 형성된 피막을 구비하는 표면 피복 절삭 공구로서,
상기 피막은, 염화나트륨형의 결정 구조를 갖는 결정립을 포함하는 제1 경질 피막층을 포함하고,
상기 결정립은, AlxTi1-x의 질화물 또는 탄질화물로 이루어지는 제1 층과, AlyTi1-y의 질화물 또는 탄질화물로 이루어지는 제2 층이 교대로 1층 이상 적층된 적층 구조를 가지고,
상기 제1 층의 Al의 원자비 x는 각각 0.76 이상 1 미만의 범위에서 변동하고,
상기 제2 층의 Al의 원자비 y는 각각 0.45 이상 0.76 미만의 범위에서 변동하고,
상기 원자비 x와 상기 원자비 y는, 그 차의 최대치가 0.05≤x-y≤0.5가 되고,
인접하는 상기 제1 층과 상기 제2 층의 두께의 합계는 3~30 nm이고,
상기 결정립은, 상기 기재 표면의 법선 방향에 평행한 단면에 있어서 전자선 후방 산란 회절 장치를 이용하여 상기 결정립의 결정 방위를 각각 해석함으로써, 상기 결정립의 결정면인 (200)면에 대한 법선과 상기 기재의 표면에 대한 법선의 교차각을 측정하고, 상기 교차각이 0~45도가 되는 상기 결정립을 0도부터 5도 단위로 구분하여 9개의 그룹을 구축하여, 각 그룹에 포함되는 상기 결정립의 면적의 합인 도수를 각각 산출했을 때, 상기 교차각이 0~20도가 되는 상기 결정립이 포함되는 4개 그룹의 상기 도수의 합계가, 전체 그룹의 상기 도수의 합계의 50% 이상 100% 이하가 되는 것인 표면 피복 절삭 공구. - 제1항에 있어서, 상기 표면 피복 절삭 공구는, 상기 교차각이 10~20도가 되는 상기 결정립이 포함되는 2개 그룹의 상기 도수의 합계가, 상기 전체 그룹의 상기 도수의 합계의 30% 이상 100% 이하가 되는 것인 표면 피복 절삭 공구.
- 제1항 또는 제2항에 있어서, 상기 피막은, 상기 기재와 상기 제1 경질 피막층 사이에 제2 경질 피막층을 포함하고,
상기 제2 경질 피막층은, 그 두께가 0.01~0.5 ㎛인 것인 표면 피복 절삭 공구. - 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 제1 경질 피막층은, 그 두께가 1~15 ㎛인 것인 표면 피복 절삭 공구.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 제1 경질 피막층은, 나노인덴테이션법에 의한 압입 경도가 28 GPa 이상 38 GPa 이하인 것인 표면 피복 절삭 공구.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 제1 경질 피막층은, 압축 잔류 응력의 절대치가 0.5 GPa 이상 5.0 GPa 이하인 것인 표면 피복 절삭 공구.
- 제1항 내지 제6항 중 어느 한 항에 기재한 표면 피복 절삭 공구의 제조 방법으로서,
상기 기재를 준비하는 제1 공정과,
상기 제1 경질 피막층을 포함하는 상기 피막을 화학 증착법을 이용하여 형성하는 제2 공정
을 포함하는 표면 피복 절삭 공구의 제조 방법. - 제7항에 있어서, 상기 제2 공정은, AlCl3 가스 및 TiCl4 가스의 양쪽 또는 어느 한쪽의 유량을 변조시키면서 상기 결정립을 성장시키는 공정을 포함하는 것인 표면 피복 절삭 공구의 제조 방법.
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