JP2012528733A - ナノ積層コーティングされた切削工具 - Google Patents
ナノ積層コーティングされた切削工具 Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 40
- 238000000576 coating method Methods 0.000 claims abstract description 36
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- 238000003754 machining Methods 0.000 claims abstract description 9
- 229910052582 BN Inorganic materials 0.000 claims abstract description 8
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 230000000737 periodic effect Effects 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 43
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 239000011230 binding agent Substances 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 229910052758 niobium Inorganic materials 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 238000000151 deposition Methods 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 229910052727 yttrium Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 238000000541 cathodic arc deposition Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000005240 physical vapour deposition Methods 0.000 claims description 3
- 238000002441 X-ray diffraction Methods 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229910001067 superalloy steel Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 4
- 229910000601 superalloy Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 3
- 229910033181 TiB2 Inorganic materials 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 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 229910016459 AlB2 Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 101000693961 Trachemys scripta 68 kDa serum albumin Proteins 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910007991 Si-N Inorganic materials 0.000 description 1
- 229910006294 Si—N Inorganic materials 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- 229910008484 TiSi Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001119 inconels 625 Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- -1 two or more Chemical class 0.000 description 1
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Abstract
Description
本発明によれば、固体のインサート又は支持体に取り付けられるもののいずれかとして、多結晶の立方晶窒化ホウ素(PCBN)の硬質合金の本体を含む、チップ除去による機械加工のための切削工具であって、その上に全体として柱状の構造を有する、厚さが0.5〜10μm、好ましくは0.5〜5μmである、A層及びB層の互層の多結晶のナノ積層構造を含む硬質かつ耐摩耗性のコーティングが堆積された切削工具が提供される。ナノ積層構造の中間領域、即ち成長方向の厚さの30〜70%内の領域の断面走査型電子顕微鏡により測定されるように、平均柱幅が20〜1000nm、好ましくは20〜500nmであり、前記平均柱幅は、隣接する少なくとも10本の柱の幅を計測した平均である。
表1のコーティングは、以下のPCBNインサート上に陰極アーク蒸着によって堆積させた:
S1:60体積%のcBN、cBNの平均粒径約2μm、86質量%のTi(C,N)、5質量%のASTM F75合金(主な組成:62質量%のCo+28.5質量%のCr+6質量%のMo)並びに主にTiB2及びAl2O3を含有する残余を含有するバインダーを含む。
S2:60体積%のcBN、cBNの平均粒径約2μm、86質量%のTi(C,N)、5質量%のInconel 625合金(主な組成:28.5質量%のCr+9質量%のMo+3質量%のNb+残余のNi)並びに主にTiB2及びAl2O3を含有する残余を含有するバインダーを含む。
S3:50体積%のcBN、cBNの平均粒径約1μm、91質量%Ti(C,N)及び主にTiB2及びAl2O3を含有する残余を含有するバインダー含む。
S4:90体積%のcBN、cBNの平均粒径約4μm、主にAlN及び主にAlB2を含有する残余を含有するバインダーを含む。
S5:90体積%のcBN、cBNの平均粒径約20μm、主にAlN及び主にAlB2を含有する残余を含有するバインダーを含む。
S1及びS2インサート上のコーティング1、3、6、40〜45は、以下の条件の下で試験した:
配置: CNGA120408S
適用: 連続回転
工作物の材料: 表面硬化鋼(16MnCr5)
切削速度: 200m/分
送り: 0.1mm/回転
切込み深さ: 0.15mm
工具寿命基準: エッジ破損
S3インサート上のコーティング1〜6、35、36、38〜42、44〜45を以下の条件の下で試験した:
配置: RCGN0803M0S
適用: 連続回転
工作物の材料: 表面硬化鋼(16MnCr5)
切削速度: 200m/分
送り: 0.1mm/回転
切込み深さ: 0.15mm
工具寿命基準: エッジ破損
S4インサート上のコーティング6、37、40、41を以下の条件の下で試験した:
配置: CNMN120412S
適用: 対面
工作物の材料: AISI A48−40B
切削速度: 1100m/分
送り: 0.3mm/回転
切込み深さ: 1mm
工具寿命基準: エッジ破損
S5インサート上のコーティング6、40、41を以下の条件の下で試験した:
配置: CNMN120412S
適用: 連続回転
工作物の材料: AISI A48−45B
切削速度: 1100m/分
送り: 0.4mm/回転
切込み深さ: 2mm
工具寿命基準: エッジ破損
Claims (9)
- 固体のインサート又は支持体に取り付けられるもののいずれかとして本体を含む、その上に硬質かつ耐摩耗性のPVDコーティングが堆積された、チップ除去による機械加工のための切削工具インサートであって、
前記本体が、周期表の4、5及び6族に属する1種以上の元素及びAlの窒化物、ホウ化物、酸化物、炭化物及び炭窒化物から選択される少なくとも1つの化合物を含むバインダー中に少なくとも30体積%の立方晶窒化ホウ素(cBN)を含有する多結晶の立方晶窒化ホウ素(PCBN)を含有すること、及び、
前記コーティングがA層及びB層の互層の柱状かつ多結晶のナノ積層構造を含み、層Aは(Ti1-xAlxMe1p)Naであり、ここで、0.3<x<0.95、好ましくは0.45<x<0.75、0.90<a<1.10、好ましくは0.96<a<1.04、0≦p<0.15であり、Me1は、Zr、Y、V、Nb、Mo及びWの1種以上であり、層Bは(Ti1-y-zSiyMe2z)Nbであり、ここで、0.05<y<0.25好ましくは0.05<y<0.18、0≦z<0.4、0.9<b<1.1、好ましくは0.96<b<1.04であり、Me2は、Y、V、Nb、Mo、W及びAlの1種以上であり、ナノ積層構造の厚さが0.5〜10μm、好ましくは0.5〜5μmであり、平均柱幅が20〜1000nmであり、そしてA層及びB層のそれぞれの平均厚さが1〜50nmであること、を特徴とする、切削工具インサート。 - 前記ナノ積層構造が、X線回折で測定されるように、立方相及び六方相の構造の混合、好ましくは立方相のみを含むことを特徴とする、請求項1に記載の切削工具インサート。
- z=p=0であることを特徴とする、請求項1及び2のいずれかに記載の切削工具インサート。
- 前記コーティングが、TiN、TiC、Ti(C,N)若しくは(Ti、Al)N、好ましくは(Ti、Al)Nの内部単層及び/若しくは多層コーティング、並びに/又はTiN、TiC、Ti(C,N)、(Ti、Si)N若しくは(Ti、Al)N、好ましくは(Ti、Si)N若しくは(Ti、Al)Nの外部単層及び/若しくは多層コーティングを含み、ナノ積層構造の厚さを含む全コーティング厚さが0.5〜20μm、好ましくは0.5〜10μmであることを特徴とする、請求項1〜3のいずれかに記載の切削工具インサート。
- 前記PCBN本体が、30体積%<cBN<70体積%、好ましくは、40体積%<cBN<65体積%を含有し、cBNの平均粒径は0.5μm〜4μmであり、バインダーは、80質量%<Ti(C,N)<95質量%を含有し、残りは主に、元素Ti、N、B、Ni、Cr、Mo、Nb、Fe、Al及びOの2種以上を含む他の化合物を含有することを特徴とする、請求項1〜4のいずれかに記載の切削工具インサート。
- 前記PCBN本体が、45体積%<cBN<70体積%、好ましくは、55体積%<cBN<65体積%を含有し、cBNの平均粒径は0.5μm〜4μm、好ましくは1μm〜3μmであり、バインダーは、80質量%<Ti(C,N)<90質量%、1質量%<Ni、Co、Cr及びMoの元素の1種以上を含有する合金<10質量%、及び主にTiB2及びAl2O3を含有する残余を含有することを特徴とする、請求項1〜4のいずれかに記載の切削工具インサート。
- 前記PCBN本体が、70体積%<cBN、好ましくは80体積%<cBN<95体積%を含有し、cBNの平均粒径は、0.5μm〜10μm、好ましくは1μm〜6μm又は10μm〜25μm、好ましくは15μm〜25μmのいずれかであり、バインダは、Al、B、N、W、Co、Ni、Fe、Al及びOの元素2種以上の化合物を含有することを特徴とする、請求項1〜4のいずれかに記載の切削工具インサート。
- 前記コーティングが、Ar+N2雰囲気下、好ましくは、純N2雰囲気下で、全圧0.5Pa〜9.0Pa、好ましくは1.5Pa〜5.0Paで、バイアスは、−10V〜−300V、好ましくは−20V〜−200V、350℃〜700℃、好ましくは400℃〜650℃にて50A〜200Aの蒸着電流を用いて(Ti、Al、Mel)N及び(Ti、Si、Me2)N層の所望の組成を得る合金の又は複合陰極の陰極アーク蒸着により堆積されることを特徴とする、請求項1に記載の切削工具インサートの製造方法。
- 切削作業およびインサート幾何学形状に依存して、切削速度が50〜2000m/分、好ましくは50〜1500m/分で、平均送りが0.01〜1.0mm/回転、好ましくは0.01〜0.6mm/回転での鋼、鋳鉄、超合金及び硬化鋼の機械加工のための、請求項1〜7のいずれかに記載の切削工具インサートを使用する方法。
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CN102449195B (zh) | 2014-08-20 |
EP2446066B1 (en) | 2017-05-03 |
KR101759475B1 (ko) | 2017-07-19 |
US20120114437A1 (en) | 2012-05-10 |
EP2446066A1 (en) | 2012-05-02 |
SE0900738A1 (sv) | 2010-12-02 |
CN102449195A (zh) | 2012-05-09 |
SE533883C2 (sv) | 2011-02-22 |
EP2446066A4 (en) | 2016-04-20 |
US8864861B2 (en) | 2014-10-21 |
WO2010140959A1 (en) | 2010-12-09 |
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