CN102471896B - 用于车削钢的涂层切割工具刀片 - Google Patents
用于车削钢的涂层切割工具刀片 Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 title abstract description 8
- 239000010959 steel Substances 0.000 title abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 13
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 8
- 229910052594 sapphire Inorganic materials 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 37
- 239000010936 titanium Substances 0.000 description 13
- 235000019587 texture Nutrition 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 235000019589 hardness Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 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
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005270 abrasive blasting Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000000879 optical micrograph Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000006911 nucleation 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
- 239000004033 plastic Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910001845 yogo sapphire 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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- B23B27/148—Composition of the cutting inserts
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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
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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
- C23C16/40—Oxides
- C23C16/403—Oxides of aluminium, magnesium or beryllium
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
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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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- 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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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
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Abstract
本发明涉及用于车削硬化钢和工具钢的切削工具刀片。所述切削工具刀片包括涂覆有织构CVDα‑Al2O3的硬质合金刀体。所述硬质合金刀体具有4.0~7.0重量%Co和0.25~0.50重量%Cr,且S‑值为0.68~0.88,矫顽力(Hc)为28~38kA/m。所述α‑Al2O3层的厚度为7~12μm,其由具有2~12的长/宽比的柱状晶粒构成,且沉积在厚度为4~12μm的MTCVD Ti(C,N)层上。所述氧化铝层的特征在于明确的(006)生长织构。本发明的目的是提供一种切削工具刀片,其具有优良的抗变形性、耐磨性和韧性。
Description
技术领域
本发明涉及尤其可用于车削硬化钢和工具钢的涂层切削工具刀片。硬的细晶粒基体与CVD涂层的组合大大改善耐磨性。所述涂层由一个或多个难熔层构成,其中至少一层为织构的α-氧化铝(α-Al2O3)。
背景技术
US 2009/017289涉及以高切削速度车削钢用切削工具刀片。所述切削工具刀片包含通过化学气相沉积在硬质合金基体上而涂覆的(006)织构α-Al2O3。
US 2009/016831涉及尤其可用于车削耐热超合金的涂层切削工具刀片,其利用硬的低Co含量亚微米晶粒度基体以及使用物理气相沉积生长的薄的极硬单(Ti,Si)N层。
US 7201956涉及由基于碳化钨的硬质合金或基于碳氮化钛的金属陶瓷和设于其表面上的硬质涂层构成;其中所述硬质涂层包括具有α晶体结构的氧化铝层,其在相对于表面的法线的(0001)晶面的倾斜部分中具有最高峰。
硬化钢涉及大量钢和性质,并且视使用目的而以许多不同状态存在。因此淬火、淬火并回火、表面硬化(表面淬火(case hardened)、氮化等)为涉及高达68HRC的硬度范围的常见状态。然而,目的在于通过获得不同微观结构的钢来增大强度和耐磨性。
适合硬化的钢为通常具有Cr、Ni、Mn和Mo的合金化添加物的中至高碳钢。取决于目的,加入其它合金化元素。这些合金化元素中的许多为在钢中产生硬质磨粒的碳化物形成物,除了高硬度以外,其还降低可加工性并增加刀刃的磨损。
随着强度和硬度增加,结果使得在加工期间切削力增加和刀刃的磨损增加。
当在硬化钢的加工中使用硬质合金切削工具时,工具通过例如磨料和刀刃的化学磨损、切屑和断裂的不同机制而磨损。对于通常具有通过各种气相沉积技术形成的耐磨碳化物、氮化物、碳氮化物和/或氧化物的薄表面层的涂层工具刀片,涂层有助于增大耐磨料磨损性,其也充当热从切削表面扩散到下面的硬质合金基体的热障。刃口区域内的高温与高切削力的组合导致在基体的受影响的表面区域内的蠕变增加且刀刃塑性变形。硬化钢加工用刀片必须具有优良的抗变形性、耐磨性和韧性。
发明内容
因此,本发明的目的在于提供具有优良抗变形性、耐磨性和韧性的切削工具刀片。
本发明的又一目的在于提供在湿态和干态下均具有改善的耐磨性的中等和粗加工硬化钢用的涂层硬质合金。
现已令人惊奇地发现,与现有的基于硬质合金的切削工具相比,在湿态和干态下中等和粗加工硬化钢中,具有包含通过湿喷砂前处理、使用化学气相沉积生长的(006)织构氧化铝层的涂层具有低Co含量和亚微米晶粒度的硬质合金大大改善了生产率。
附图说明
图1显示了根据本发明的涂层刀片的截面光学显微镜图像,以及
图2显示了根据本发明的涂层刀片的截面扫描电子显微镜图像,
其中
A 基体内部,
B 碳氮化钛层,以及
C 氧化铝层。
具体实施方式
根据本发明,现提供由基体和涂层组成的涂层切削工具刀片。所述基体由WC,4.0~7.0重量%Co、优选4.5~6.0重量%Co,0.25~0.50重量%Cr、优选0.30~0.45重量%Cr组成,S-值为0.68~0.88、优选为0.7~0.8,且矫顽力(Hc)为28~38kA/m、优选为30~34kA/m。S-值=σ/16.1,其中σ为粘结相的所测量的磁矩,以μTm3kg-1计。优选,在涂覆之前刃口半径为15~50μm。
所述涂层包含厚度为4~12μm、优选为5~10μm的具有柱状晶粒的MTCVD Ti(C,N)层作为邻近基体的第一层。在该MTCVD层之上沉积α-Al2O3层。优选该MTCVD层包括<3μm、优选为0.1~1.5μm的最里面的细晶粒TiN层,其邻近于在顶上具有Ti(C,N)层的基体。更优选所述Ti(C,N)层的后面有厚度为约0.1~2μm、优选0.1~0.5μm的细晶粒TiN层,所述细晶粒TiN层后面有厚度为0.1~1.5μm的细晶粒Ti(C,N)层。邻近基体的第一MTCVD Ti(C,N)层可以被MTCVD Ti(C,O,N)、CVDTi(C,N)或CVD TiN或MTCVD Ti(C,N)、MTCVD Ti(C,O,N)、CVDTi(C,N)或CVD TiN中的两者或更多者替代。
所述α-Al2O3层由成核的α-Al2O3组成。所述氧化铝层的厚度为7至12μm、优选为8至11μm。所述氧化铝层由具有(006)织构、具有2至12、优选4至8的长/宽比的柱状晶粒构成。所述α-Al2O3层为最上层。通常,表面粗糙度Ra<1.0μm、优选为0.3~0.7μm。
α-Al2O3层的织构系数(TC)确定如下:
其中:
I(hkl)=(hkl)反射的强度。
I0(hkl)=根据JCPDS卡片46-1212号的标准强度。
n=在计算中使用的反射数。所用的(hkl)反射为:(012)、(104)、(110)、(006)、(113)、(202)、(024)和(116)。
氧化铝层的织构如下:
TC(006)>2,优选>4且<8。同时,TC(012)、TC(110)、TC(113)、TC(202)、TC(024)和TC(116)均<1且TC(104)为第二最高织构系数。在一个优选的实施方案中,TC(104)<2且>0.5。
总涂层厚度为11至24μm、优选为13至21μm。
由基体和涂层组成的根据本发明的涂层切削工具刀片以如下途径制成:所述基体通过常规粉末冶金方法磨制、压制和烧结制成。其组成为WC,4.0~7.0重量%Co、优选4.5~6.0重量%Co,0.25~0.50重量%Cr、优选0.30~0.45重量%Cr,且S-值为0.68~0.88,优选为0.7~0.8,矫顽力(Hc)为28~38kA/m,优选为30~34kA/m。
在涂覆之前,刀片优选通过湿刷刃口搪磨到刃口半径优选为15μm至50μm。
通过CVD和/或MTCVD用Ti(C,N)层和可能的中间层涂覆硬质合金刀片。随后,使用合并有数个不同沉积步骤的CVD方法使α-Al2O3在1000℃温度下成核。在这些步骤中,控制CO2+CO+H2+N2气体混合物的组成以产生获得(006)织构所需要的氧势。随后通过常规CVD在1000℃下沉积α-Al2O3层。精确条件取决于所使用的涂覆设备的设计。根据本发明的气体混合物的确定在技术人员的视界内。
合适地,将α-Al2O3层用表面抛光法、优选湿喷砂后处理以降低表面粗糙度。
本发明还涉及根据以上的刀片用于在湿态和干态下以70~250m/分钟的切削速度、0.3~3mm的切削深度和0.1~0.6mm/转的进给量中等和粗加工具有40HRC至60HRC硬度的硬化钢和工具钢的用途。
实施例1
根据本发明通过常规磨制原料粉末、压制生坯且随后在约1400℃下烧结来生产WNMGF080612-MF5和RPHW1204MOT-MD10型硬质合金刀片。通过湿刷到约35μm并空间研磨对刀片进行刃口加工。烧结之后的刀片的数据示于表1中。
表1.组成和物理数据。
基体 | Co,重量% | Cr,重量% | WC | 矫顽力,kA/m | S-值 |
A | 5.0 | 0.35 | 余量 | 32.0 | 0.8 |
实施例2涂层
将得自实施例1的刀片进行MTCVD和CVD涂覆。
首先,在850℃下沉积0.4μm细晶粒TiN层。随后,使用乙腈作为碳/氮源在850℃下沉积柱状Ti(C,N)层。中断MTCVD工艺,且距硬质合金表面6μm有0.3μm细晶粒CVD-TiN-层,后面是0.3μm细晶粒CVD-TiCN层。在以下步骤中,沉积氧化铝层且控制CO2+CO+H2+N2气体混合物组成以产生获得(006)织构所需要的氧势。通过沉积时间控制不同层的厚度。通过光学和扫描电子显微镜方法和X射线衍射分析涂层刀片。各层的厚度和织构系数示于表2中。图1显示了涂层刀片的截面光学显微镜图像,图2显示了电子显微镜图像。
表2.各层的厚度和织构系数
实施例3
在以下条件下试验得自实施例1的涂层刀片的耐磨性。使用SecoISO K10级作为参考,表示为B。使用Seco ISO P10级作为另一参考,表示为C。对于所提到的应用,两者都是常用的等级。
应用:圆柱形棒的端面(facing)
材料:DIN34CrNiMo6硬化(Q&T)到43HRC
切削速度:190m/分钟
进给量:0.3mm/转
切削深度:2mm
备注:冷却剂。
工具寿命标准为侧面磨损0.3mm,且对于各等级计数端面数。结果见表3。
表3
等级 | 端面数 |
本发明(Aa) | 80 |
B | 50 |
C | 30 |
该试验表明根据本发明的刀片比现有推荐等级实现长约60%的工具寿命。
实施例4
在以下条件下试验得自实施例1的涂层刀片的耐磨性。使用SecoISO K10级作为参考,表示为B。使用Seco ISO P10级作为另一参考,表示为C。对于所提到的应用,两者都是常用的等级。
应用:圆柱形棒的端面
材料:工具钢AISI H13,硬化到50HRC。
切削速度:110m/分钟
进给量:0.3mm/转
切削深度:2mm
备注:冷却剂
结果
工具寿命标准为侧面磨损0.3mm。结果见表4。
表4
等级 | 端面数 | 侧面磨损,mm |
本发明(Aa) | 40 | 0.23 |
B | 40 | 0.32 |
C | 20 | 0.38 |
该试验表明,与现有推荐等级相比,根据本发明的刀片使工具寿命增加约40%。
实施例5
在以下条件下试验得自实施例1的涂层刀片(Ab)的耐磨性和韧性。使用得自竞争者的打算用于该应用的陶瓷等级作为参考。
应用:圆柱形棒的纵向车削
材料:完全硬化的50CrMo4(表面硬度:58HRC)
切削速度vc:120或147m/分钟
进给量:0.28mm/转
切削深度:0.5mm
备注:干燥
结果见表5。
表5
参考等级在加工材料上加工两遍,结果是在刃口线上具有严重的凹口和差的切屑控制。根据本发明的刀片能够加工五遍,仍具有优良切屑控制和加工的表面光洁度。该试验表明,与参考相比,根据本发明的刀片的工具寿命和速度性能增加。
Claims (21)
1.一种切削工具刀片,其包括硬质合金刀体和涂层,其特征在于:
-所述硬质合金刀体由WC,4.0-7.0重量%Co,0.25-0.50重量%Cr组成,且S-值为0.68-0.88,矫顽力Hc为28-38kA/m,
相邻的
-通过CVD沉积的厚度为11至24μm的涂层,其中至少最上层为厚度为7-12μm的α-Al2O3层,其在<006>-方向织构化,织构系数TC(006)>2,同时,TC(012)、TC(110)、TC(113)、TC(202)、TC(024)和TC(116)都<1且TC(104)为第二高织构系数,所述织构系数TC(hkl)定义为:
其中
I(hkl)=(hkl)反射的所测量的强度,
I0(hkl)=根据JCPDS卡片46-1212号的标准强度,
n=在计算中使用的反射数,
所使用的(hkl)反射为:(012)、(104)、(110)、(006)、(113)、(202)、(024)和(116)。
2.根据权利要求1所述的切削工具刀片,其特征在于Co含量为4.5-6.0重量%。
3.根据权利要求1所述的切削工具刀片,其特征在于Cr含量为0.30-0.45重量%。
4.根据权利要求1所述的切削工具刀片,其特征在于S-值为0.7-0.8。
5.根据权利要求1所述的切削工具刀片,其特征在于矫顽力Hc为30-34kA/m。
6.根据权利要求1所述的切削工具刀片,其特征在于α-Al2O3层厚度为8-11μm。
7.根据权利要求1所述的切削工具刀片,其特征在于织构系数TC(006)>4且<8。
8.根据权利要求1所述的切削工具刀片,其特征在于TC(104)<2且>0.5。
9.根据前述权利要求中任一项所述的切削工具刀片,其特征在于所述α-Al2O3层由具有2~12的长/宽比的柱状晶粒构成。
10.根据权利要求9所述的切削工具刀片,其特征在于所述α-Al2O3层由具有4~8的长/宽比的柱状晶粒构成。
11.根据权利要求1所述的切削工具刀片,其特征在于所述涂层还包括邻近硬质合金刀体的由柱状晶粒构成的MTCVD Ti(C,N)的厚度为4~12μm的第一层。
12.根据权利要求11所述的切削工具刀片,其特征在于所述第一层的厚度为5~10μm。
13.根据权利要求11所述的切削工具刀片,其特征在于所述第一层包括邻近所述硬质合金刀体的厚度<3μm的最里面的细晶粒TiN层。
14.根据权利要求12所述的切削工具刀片,其特征在于所述第一层包括邻近所述硬质合金刀体的厚度<3μm的最里面的细晶粒TiN层。
15.根据权利要求13所述的切削工具刀片,其特征在于所述最里面的细晶粒TiN层的厚度为0.1~1.5μm。
16.根据权利要求11至15中的任一项所述的切削工具刀片,其特征在于所述第一层后面有厚度为0.1~2μm的细晶粒TiN层,所述细晶粒TiN层后面有厚度为0.1~1.5μm的细晶粒Ti(C,N)层。
17.根据权利要求16所述的切削工具刀片,其特征在于所述第一层后面有厚度为0.1~0.5μm的细晶粒TiN层。
18.根据权利要求11至15中的任一项所述的切削工具刀片,其特征在于所述第一层被MTCVD Ti(C,O,N)、MTCVD TiN、CVD Ti(C,N)或CVD TiN,或MTCVD Ti(C,N)、MTCVD Ti(C,O,N)、MTCVD TiN、CVD Ti(C,N)和CVD TiN中的两者或更多者代替。
19.根据权利要求1-8、11和12中任一项所述的切削工具刀片,其特征在于所述α-Al2O3层为最上层,且Ra值<1.0μm。
20.根据权利要求1-8、11和12中任一项所述的切削工具刀片,其特征在于在涂覆之前所述硬质合金刀体的刃口半径为15至50μm。
21.一种根据权利要求1至20所述的切削工具刀片的用途,其用于在湿态和干态下以70~250m/分钟的切削速度、0.3~3mm的切削深度和0.1~0.6mm/转的进给量车削具有40HRC至60HRC硬度的硬化钢和工具钢。
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- 2010-06-29 WO PCT/SE2010/050742 patent/WO2011014110A1/en active Application Filing
- 2010-06-29 RU RU2012106614/02A patent/RU2536014C2/ru not_active IP Right Cessation
- 2010-06-29 EP EP10804787.9A patent/EP2459771B1/en not_active Revoked
- 2010-06-29 US US13/387,436 patent/US8945250B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2459771B1 (en) | 2017-08-16 |
RU2012106614A (ru) | 2013-09-10 |
EP2459771A4 (en) | 2016-11-23 |
KR20130008506A (ko) | 2013-01-22 |
US20120144965A1 (en) | 2012-06-14 |
BR112012001879A2 (pt) | 2016-03-15 |
US8945250B2 (en) | 2015-02-03 |
SE0901037A1 (sv) | 2011-01-28 |
SE533972C2 (sv) | 2011-03-15 |
CN102471896A (zh) | 2012-05-23 |
EP2459771A1 (en) | 2012-06-06 |
RU2536014C2 (ru) | 2014-12-20 |
WO2011014110A1 (en) | 2011-02-03 |
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