CN101342602B - 涂层切削刀具 - Google Patents
涂层切削刀具 Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 70
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000007514 turning Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 29
- 239000011230 binding agent Substances 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 14
- 229910052758 niobium Inorganic materials 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 229910052715 tantalum Inorganic materials 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 238000010899 nucleation Methods 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000006911 nucleation Effects 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 239000010936 titanium Substances 0.000 description 16
- 238000003754 machining Methods 0.000 description 9
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000005270 abrasive blasting Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
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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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- 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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- B23B—TURNING; BORING
- B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
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- 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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Abstract
本发明涉及一种用于在高切削速度下车削钢材的切削刀具刀片。这种切削刀具刀片包括(006)织构的α-Al2O3涂覆的硬质合金级。该硬质合金本体具有4.5-6.5wt%的Co;以及3-10wt%的立方碳化物形成金属以及0.77-0.92的S值和10-20kA/m的矫顽性。所述α-Al2O3层具有7到12μm范围的厚度并且由具有为2-12的长度/宽度比的柱状晶粒构成,并且所述层被沉积在具有4到12μm厚度的MTCVD Ti(C,N)层上。这个氧化铝层特征在于具有显著的(006)生长织构。该氧化铝层是最上层并且被湿喷砂处理,从而具有<1μm的Ra数值,同时赋予刀具黑色的和闪亮的外观。
Description
技术领域
本发明涉及一种被设计用于优选在高切削速度下对钢材进行车削的涂层切削刀具刀片。基底为上面沉积有坚硬并且耐磨的涂层的硬质合金。涂层呈现出与基底的优良粘附性,覆盖基底的所有功能部分。所述涂层由一个或者多个耐熔层构成,其中至少一个耐熔层是织构化的阿尔法-氧化铝(α-Al2O3)。
背景技术
利用基于美国专利5,137,774的商品,在20世纪90年代初实现了工业规模下的控制α-Al2O3多形体。该专利后来的变型已被用于沉积具有优选涂层织构的α-Al2O3,在US 5,654,035、US 5,980,988、US 5,863,640、US 6,333,103、US 7,011,867、US 7,094,447、US 20060199026和US 20060141271中对此进行了描述。
US 2007/0104945涉及一种用于金属加工的涂层切削刀具刀片,它包括基底和涂层。该涂层由一个或者多个耐熔层构成,其中至少一个耐熔层为α-Al2O3并且由柱状晶粒构成。所述层的特征在于具有使用XRD测得的强的(006)衍射峰,以及低强度的(012)、(104)、(113)、(024)和(116)衍射峰。
US 7,201,956涉及一种切削刀具,它由碳化钨基的硬质合金或者碳氮化钛基的金属陶瓷以及设置于其表面上的坚硬涂层构成;其中该坚硬涂层包括具有α晶体结构的氧化铝层,并且最高峰位于相对于所述表面的法线斜度在10度范围内的晶粒的(0001)平面的倾斜部分中。
利用通过Tobioka(US 4,277,283)、Nemeth(US 4,610,931)和Yohe(US 4,548,786)已知在含有WC、粘结相和立方碳化物相的硬质合金上产生富粘结相的表面区域的方法。Tobioka、Nemeth和Yohe的专利描述了通过溶解靠近刀片表面的立方碳化物相而在表面区域中实现富粘结相的方法。他们的方法要求立方碳化物相含有一些氮,这是因为在烧结温度下溶解立方碳化物相要求在烧结的本体内的氮分压、氮活性,超过在烧结气氛中的氮分压。可以在烧结循环期间通过熔炉气氛和/或直接通过粉末添加氮。立方碳化物相优先在表面区域中溶解,这导致小的容积,它们将被粘结相填充,以实现所期望的富粘结相。结果,获得了基本由WC和粘结相构成的表面区域。虽然立方碳化物相基本为碳氮化物相,但是材料在这里被称为硬质合金。
当硬质合金切削刀具被用于加工钢材时,由于不同机制,例如磨料和化学磨损、切削刃崩裂和断裂,使得刀具磨损。对于通常具有由各种气相沉积技术而形成的耐磨碳化物、氮化物、碳氮化物和/或氧化合物的薄表面层的涂层刀片而言,涂层有助于提高耐磨性,但是涂层也充当了热量从切削表面扩散到下面的硬质合金基底中的热屏障。切削刃区域中的高温与较高的切削力一起导致了在基底的受影响表面区域中的蠕变增加,并且切削刃塑性变形。用于加工钢材的刀片必须具有良好的抗变形性、耐磨性和韧度。
因此本发明的一个目的在于提供一种切削刀片,它具有良好的抗变形性、耐磨性和韧度。
本发明还一个目的在于提供一种切削刀片,它可用于在高切削速度下,在精细、中等、粗糙和间断的切削条件下加工铁基合金,优选为对钢材进行车削。
发明内容
根据本发明,现在已经令人惊讶地发现一种硬质合金适用于高速加工应用,优选用于铁基合金中的高速加工应用,最优选用于对于韧度和耐磨性具有高要求的钢材中的高速加工操作中,该硬质合金具有富Co表面区域,该表面区域具有包括利用湿喷砂进行后处理的(006)织构氧化铝层的涂层。加工区域是连续的并且是利用或者不利用冷却剂的高速下的间断车削,连同对于耐磨性、韧度和精度以及表面光洁度具有高要求的精整操作,并且用于加工不锈钢,其中切削刀具上出现切屑瘤(built-up edge)的通常问题被减小,并且工件的表面光洁度得以改进。利用具有富Co表面区域的、具有(006)织构氧化铝的硬质合金和后处理(优选为对刀片进行湿喷砂的组合效果能够解释这种令人惊讶的改进。
附图说明
图1示出根据本发明的涂层刀片的一个截面的光学显微图片:
A基底内部
B富粘结相区域
C碳氮化钛层
D氧化铝层
具体实施方式
根据本发明,提供一种包括硬质合金本体的涂层切削刀片,所述本体具有以下组分:4.5-6.5wt%、优选5-6wt%的Co;以及3-10wt%的立方碳化物形成金属,该金属选自元素周期表的IVb、Vb和Vib族,优选为Ti、Nb和Ta;以及余量WC。在Ta和Nb的重量浓度之间的比率在1.0-3.0之间,优选在1.5-2.5之间。在Ti和Nb的重量浓度之间的比率在0.5-1.5之间,优选在0.8-1.2之间。
钴粘结相与钨高度合金化。在粘结相中W的浓度可以被表达成S值=σ/16.1,其中σ是单位为μTm3kg-1的粘结相的磁矩。S值依赖于在粘结相中钨的含量并且随着钨含量的降低而增加。因此,对于纯钴而言,或者碳饱和的粘结剂而言,S=1,而对于含有数量相应于形成η相的边界线的W的粘结相而言,S=0.78。根据本发明,现在已经发现如果硬质合金本体具有在0.77-0.92、优选0.79-0.89范围内的S值,则实现了改进的切削性能。碳化物相的平均晶粒尺寸可以被表达为硬质合金的矫顽性。根据本发明,已经发现在10-20kA/m内,优选在13-17kA/m内的矫顽性导致改进的切削性能。
在第一优选实施例中,该硬质合金包括6-10wt%、优选7-8wt%的立方碳化物形成金属,该金属选自元素周期表的IVb、Vb和VIb族,优选为Ti、Nb和Ta。
在第二优选实施例中,该硬质合金包括3-6wt%、优选3-5wt%的立方碳化物形成金属,该金属选自元素周期表的IVb、Vb和VIb族,优选为Ti、Nb和Ta。
在第三优选实施例中,上述硬质合金本体的至少一个表面具有5-40μm厚的、优选5-30μm厚的、最优选10-25μm厚的、基本不含立方碳化物相的和富粘结相的表面区域,并且平均粘结相含量在标定粘结相含量的1.2-2.5倍的范围内。
该涂层包括MTCVD层,它作为邻近基底层的第一层,该涂层具有4到12μm、优选为5到10μm的厚度。在这个MTCVD层的顶部上沉积有α-Al2O3层。MTCVD层包括邻近基底层的<3μm优选为0.5-2μm的最内的TiN层,并且在顶部上是Ti(C,N)层。优选地,还有另外的一个TiN层被***Ti(C,N)层中,它具有大约0.5-3μm、优选1.0-2.0μm的厚度。该TiN层被置于Ti(C,N)层中,在氧化铝层下面大约0.5-2.5μm处。邻近基底层的第一MTCVD Ti(C,N)层能够被MTCVD Ti(C,O,N)、CVD Ti(C,N)、CVD TiN、CVD TiC、MTCVD Zr(C,N)或上述的组合替代。
根据本发明的α-Al2O3层由具有低位错密度的柱状晶粒的有核的α-Al2O3构成,基本不存在变形应力。该氧化铝层的厚度为7到12μm、优选8到11μm。该氧化铝层由具有(006)织构的柱状晶粒构成,具有2到12、优选4到8的长度/宽度比。该α-Al2O3层是最上层。典型地,表面粗糙度是Ra<1.0μm,优选为0.3-0.7μm。
α-Al2O3层的织构系数(TC)如下确定:
其中
I(hkl)=(hkl)反射的强度
Io(hkl)=根据JCPDS卡No.46-1212的标准强度
n=在计算中使用的反射的数目。
所用的(hkl)反射是:(012)、(104)、(110)、(006)、(113)、(202)、(024)和(116)。
氧化铝层的织构如下:
TC(006)>2,优选>3并且<6,并且优选<5。同时,TC(012)、TC(110)、TC(113)、TC(202)、TC(024)和TC(116)均<1,并且TC(104)是第二高的织构系数。
在优选实施例中,TC(104)<2并且>0.5。涂层总厚度在11和24μm之间,优选在13和21μm之间。
本发明还涉及一种制造根据说明书的切削刀片的方法,该刀片包括硬质合金基底层和涂层,该基底层由Co粘结相、WC和立方碳氮化物相构成,并且具有基本不含立方碳化物相的富粘结相表面区域。制备粉末混合物,它含有4.5-6.5wt%、优选5-6wt%的Co;以及3-10wt%的立方碳化物形成金属,该金属选自元素周期表的IVb、Vb和Vib族,优选为Ti、Nb和Ta;以及余量的WC。在Ta和Nb的重量浓度之间的比率在1.0-3.0之间,优选在1.5-2.5之间。在Ti和Nb的重量浓度之间的比率在0.5-1.5之间,优选在0.8-1.2之间。将这些原材料与压制剂混合。当原材料含有过多C时,添加W以获得所需的S值。在相反情形中,当在原材料混合物中碳含量过低时,添加纯碳。以此方式,获得所期望的S值,并且对混合物进行碾磨和喷雾干燥,以获得具有所需特性的粉末材料。然后,粉末被压实和烧结。在大约50mbar的受控气氛下、在1300-1500℃的温度下进行烧结,随后进行冷却。
在一个实施例中,通过粉末例如以氮化物形式或者通过使用氮气在熔炉中进行原位渗氮来添加数量受到良好控制的氮。将被添加的最佳的氮量依赖于硬质合金的成分,并且特别是依赖于立方相的数量。准确条件在一定程度上依赖于所用的烧结设备的设计。在技术人员范围内,可以根据本说明书对氮的添加和烧结过程进行确定和修改,以获得理想结果。
硬质合金表面利用CVD和/或MTCVD而涂覆有Ti(C,N)层以及可能的中间层。随后,使用结合数个不同沉积步骤的CVD工艺用于在1000℃的温度下对α-Al2O3成核。在这些步骤中,控制CO2+CO+H2+N2气体混合物的组分,以形成实现(006)织构所需的O-势。然后,在1000℃下利用传统的CVD沉积α-Al2O3层。准确条件依赖于所用的涂覆设备的设计。在技术人员范围内,可以根据本发明确定气体混合物。
最后,利用表面抛光方法,优选为湿喷砂对α-Al2O3进行后处理,从而降低表面韧度。
本发明还涉及将根据上述的切削刀片用于利用或者不利用冷却剂的在高速下的对钢材进行连续的精细、中等、粗糙和间断的车削,连同对于耐磨性、韧度和精度以及表面光洁度具有高要求的精整操作。本发明还涉及将根据上述的切削刀片用于加工不锈钢,其中在切削刀具上出现切屑瘤的通常问题被减小,并且工件的表面光洁度得以改进。
实例1硬质合金刀片
利用对原材料粉末进行传统的铣削,根据本发明生产CNMG120408、CCMT09T308和TPUN160308型硬质合金刀片,压制生坯并且随后在1430℃下进行烧结。还对刀片进行传统的切削刃制备和尺寸磨削。在烧结之后的这些刀片的数据示于表1中。
表1组分和物理数据
基底层 | Co,wt% | Ta,wt% | Nb,wt% | Ti,wt% | 矫顽性kA/m | S值 | 梯度,μm |
A | 5.5 | 3.2 | 2.0 | 2.3 | 13.5 | 0.85 | 15 |
B | 5.8 | 3.2 | 2.0 | 2.3 | 15 | 0.84 | 14 |
C | 5.1 | 3.2 | 2.0 | 2.3 | 14 | 0.87 | 12 |
实例2涂层
利用MTCVD和CVD对实例1的刀片进行涂层。
第一层为使用乙腈作为碳/氮源,利用MTCVD涂覆的Ti(C,N)。在随后的步骤中,沉积氧化铝层,并且控制CO2+CO+H2+N2气体混合物的组分,以形成实现(006)织构所需的O-势。利用沉积时间控制不同层的厚度。各层的厚度和织构系数示于表2中。
表2各层的厚度和织构系数
涂层 | TiCN,μm | α-Al2O3,μm | TC(012) | TC(104) | TC(110) | TC(006) | TC(113) | TC(202) | TC(024) | TC(116) |
A | 8 | 10 | 0.20 | 1.12 | 0.13 | 5.72 | 0.12 | 0.09 | 0.14 | 0.47 |
B | 6 | 8.5 | 0.31 | 1.52 | 0.13 | 4.70 | 0.17 | 0.20 | 0.20 | 0.77 |
实例3
在抗变形性方面,对实例1和实例2的刀片以及与该应用领域有关的竞争级(现有技术)进行测试。
工件:柱形杆
材料:Ck45
刀片类型:TPUN160308
切削速度:900m/分钟
进给:0.3mm/转
切削深度:3.0mm
注:干车削
在切削25秒之后检查刀片。表3示出在切削刃任意单元的变形程度。
表3在切削25秒之后切削刃的变形
样本 | 变形程度,任意单元 |
发明:基底层B+涂层A | 0.10 |
发明:基底层B+涂层B | 0.12 |
现有技术竞争级W | 0.28 |
实例4
在刀具寿命方面,对实例1和实例2的刀片以及与该应用领域有关的竞争级(现有技术)进行测试。
工件:柱形杆
材料:Ck45
刀片类型:CNMG120408
切削速度:400m/分钟
进给:0.45mm/转
切削深度:2.0mm
注:冷却剂
在切削12分钟之后的磨损vbb(单位为mm)测量结果示于表4中。
表4在切削12分钟之后的磨损测量结果
样本 | 磨损,vbb |
发明:基底层A+涂层A | 0.18mm |
发明:基底层B+涂层A | 0.15mm |
现有技术:竞争级X | >1.0mm(切削刃破裂) |
现有技术:竞争级Y | >1.0mm(切削刃破裂) |
现有技术:竞争级Z | 0.27mm |
现有技术:竞争级W | 0.38mm |
实例5
在精整操作中测试实例1和实例2的刀片以及与该应用领域有关的竞争级(现有技术),其中加工模式为表面加工。
工件:柱形杆,直径80mm
材料:100Cr6
刀片类型:CCMT09T308-F1
切削速度:250m/分钟(利用冷却剂)
进给:0.15mrn/转
切削深度:1.5mm
40次表面加工之后的磨损的结果示于表5中。
表5在40次表面加工之后的磨损
样本 | 在40次表面加工之后的磨损(vbb单位mm) |
发明:基底层B+涂层B | 0.09 |
发明:基底层C+涂层B | 0.08 |
现有技术:竞争级X | 0.16 |
实例6
在间断切削情况下的纵向车削中的韧度方面测试实例1和实例2的刀片以及与该应用领域有关的竞争级(现有技术)。
工件:柱形杆,直径160mm,具有四个轴向凹槽
材料:Ck45
刀片类型:TPUN160308
切削速度:120m/分钟
进给:0.1、0.12、0.16、0.20、0.25、0.32mm/转,在切削10mm长度之后逐渐增加
切削深度:2.0mm
注:干车削
刀具寿命标准:逐渐增加进给速度,直至切削刃崩裂发生。测试每一种变型的9个切削刃。表6中的测试结果示出根据本发明的产品与现有技术相比具有增加的切削刃韧度。
表6当切削刃崩裂发生时的平均进给,9个切削刃的平均值
样本 | 破裂时的平均进给(mm/转) |
发明:基底层A+涂层B | 0.21 |
发明:基底层C+涂层A | 0.19 |
现有技术:竞争级Y | 0.17 |
现有技术:竞争级W | 0.16 |
现有技术:竞争级V | 0.16 |
实例7
在对不锈钢的精整操作中测试实例1和实例2的刀片以及与该应用领域有关的竞争级(现有技术)。操作模式为对小直径杆进行表面加工。
工件:柱形杆,直径55mm,长度178mm
材料:316L
刀片类型:CCMT09T308-F1
切削速度:120m/分钟(利用冷却剂)
进给:0.25mm/转
切削深度:0.8mm
刀具寿命标准为>0.15mm的侧面磨损或者缺口磨损
在下面在表7中示出在刀具寿命结束之前执行的表面加工的次数。
表7所执行的表面加工的次数以及相应的磨损测量结果
样本 表面加工的次数 磨损,mm
发明:基底层A+涂层A 33 0.15(侧面)
发明:基底层C+涂层B 39 0.17(缺口)
现有技术:竞争级X 21 0.23(缺口)
现有技术:竞争级Y 11 0.15(侧面)
现有技术:竞争级W 18 0.17(侧面)
Claims (18)
1.一种切削刀具刀片,用于对韧度和耐磨性具有高要求的钢材中的高速车削应用,所述切削刀具刀片包括硬质合金本体和涂层,
其特征在于
-硬质合金本体包括:WC;5-6wt%的Co;以及6-10wt%的立方碳化物形成金属,该金属选自元素周期表的IVb、Vb和VIb族;并且S值为0.77-0.92,并且矫顽性为13-17kA/m,所述硬质合金本体的至少一个表面包括5-30μm厚的并且基本不含立方碳化物相的富粘结相的表面区域,邻近是
-涂层,其中至少最上层为7-12μm厚的成核α-Al2O3层,沿着<006>方向织构,且织构系数TC(006)>2,并且TC(006)<6,同时,TC(012)、TC(110)、TC(113)、TC(202)、TC(024)和TC(116)均<1,并且TC(104)是第二高的织构系数,织构系数TC(hkl)如下定义:
其中
I(hkl)=(hkl)反射的测得的强度
Io(hkl)=根据JCPDS卡No.46-1212的标准强度
n=在计算中使用的反射的数目(8),
所用的(hkl)反射为:(012)、(104)、(110)、(006)、(113)、(202)、(024)和(116),所述α-Al2O3层由具有为2-12的长度/宽度比的柱状晶粒构成,
且所述涂层还包括邻近硬质合金基底的第一层,该第一层具有4-12μm的厚度,由MTCVD Ti(C,N)、MTCVD Ti(C,O,N)、CVD Ti(C,N)、CVD TiN、CVD TiC、MTCVD Zr(C,N)或者上述的组合构成。
2.根据权利要求1的切削刀具刀片,其特征在于,TC(104)<2并且>0.5。
3.根据前面权利要求中任一项的切削刀具刀片,其特征在于,该硬质合金包括7-8wt%的立方碳化物形成金属。
4.根据权利要求1或2的切削刀具刀片,其特征在于,所述立方碳化物形成金属为Ti、Ta和Nb,Ta和Nb的重量浓度之间的比率在1.0-3.0之间,并且Ti和Nb的重量浓度之间的比率在0.5-1.5之间。
5.根据权利要求1或2的切削刀具刀片,其特征在于,所述α-Al2O3层为最上层并且Ra数值<1.0μm。
6.根据权利要求1的切削刀具刀片,其特征在于,立方碳化物形成金属选自Ti、Nb和Ta。
7.根据权利要求1的切削刀具刀片,其特征在于,S值为0.79-0.89。
8.根据权利要求1的切削刀具刀片,其特征在于,织构系数TC(006)>3并且<6。
9.根据权利要求1的切削刀具刀片,其特征在于,所述第一层由柱状晶粒构成的MTCVD Ti(C,N)构成。
10.根据权利要求4的切削刀具刀片,其特征在于,Ta和Nb的重量浓度之间的比率在1.5-2.5之间。
11.根据权利要求4的切削刀具刀片,其特征在于,Ti和Nb的重量浓度之间的比率在0.8-1.2之间。
12.根据权利要求1的切削刀具刀片,其特征在于,所述富粘结相的表面区域为10-25μm厚。
13.根据权利要求1的切削刀具刀片,其特征在于,所述α-Al2O3层由具有为4-8的长度/宽度比的柱状晶粒构成。
14.根据权利要求1的切削刀具刀片,其特征在于,α-Al2O3层的厚度为8-11μm。
15.根据权利要求1的切削刀具刀片,其特征在于,第一层具有5-10μm的厚度。
16.根据前面权利要求中任一项的切削刀具刀片的用途,用于高速车削应用。
17.根据权利要求16的切削刀具刀片的用途,用于铁基合金中的高速车削应用。
18.根据权利要求16的切削刀具刀片的用途,用于对韧度和耐磨性具有高要求的钢材中的高速车削应用。
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US (2) | US7985471B2 (zh) |
EP (1) | EP2014789B1 (zh) |
JP (1) | JP2009028894A (zh) |
KR (1) | KR20090007223A (zh) |
CN (1) | CN101342602B (zh) |
SE (1) | SE531929C2 (zh) |
WO (1) | WO2009011648A1 (zh) |
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SE533154C2 (sv) * | 2008-12-18 | 2010-07-06 | Seco Tools Ab | Förbättrat belagt skär för grov svarvning |
SE533972C2 (sv) * | 2009-07-27 | 2011-03-15 | Seco Tools Ab | Finkornigt belagt hårdmetallskärverktygsskär för svarvning i härdat stål och verktygsstål |
WO2011055813A1 (ja) | 2009-11-06 | 2011-05-12 | 株式会社タンガロイ | 被覆工具 |
US8323783B2 (en) * | 2009-11-10 | 2012-12-04 | Kennametal Inc. | Coated cutting insert and method for making the same |
US8668982B2 (en) | 2009-11-10 | 2014-03-11 | Kennametal Inc. | Coated cutting insert and method for making the same |
EP2446988A1 (en) | 2010-10-29 | 2012-05-02 | Seco Tools AB | Cutting tool insert with an alpha-alumina layer having a multi-components texture |
JP5739189B2 (ja) * | 2011-02-24 | 2015-06-24 | 三菱マテリアル株式会社 | 耐摩耗性に優れた表面被覆切削工具の製造方法 |
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JP5757232B2 (ja) | 2011-12-26 | 2015-07-29 | 三菱マテリアル株式会社 | 硬質被覆層がすぐれた耐チッピング性と耐摩耗性を発揮する表面被覆切削工具 |
CN103205728B (zh) * | 2012-01-17 | 2015-04-08 | 株洲钻石切削刀具股份有限公司 | 表面改性涂层的切削刀具及其制备方法 |
KR20150001680A (ko) * | 2013-06-27 | 2015-01-06 | 산드빅 인터렉츄얼 프로퍼티 에이비 | 코팅된 절삭 공구 |
JP6522985B2 (ja) * | 2015-02-25 | 2019-05-29 | 京セラ株式会社 | 被覆工具 |
EP3326741B1 (en) * | 2015-10-09 | 2020-06-17 | Sumitomo Electric Hardmetal Corp. | Surface-coated cutting tool and method for producing same |
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JP6699056B2 (ja) * | 2016-06-14 | 2020-05-27 | 住友電工ハードメタル株式会社 | 表面被覆切削工具 |
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KR101687142B1 (ko) * | 2016-07-20 | 2016-12-15 | 한국야금 주식회사 | 절삭공구용 경질피막 |
RU2741728C2 (ru) * | 2016-09-30 | 2021-01-28 | Сандвик Интеллекчуал Проперти Аб | Способ механической обработки ti, ti-сплавов и сплавов на основе ni |
BR112019025713B1 (pt) * | 2017-06-07 | 2024-03-05 | Sandvik Intellectual Property Ab | Ferramenta de corte revestida |
US11213894B2 (en) | 2018-03-16 | 2022-01-04 | Sumitomo Electric Hardmetal Corp. | Surface-coated cutting tool and method of manufacturing the same |
JP6519936B1 (ja) | 2018-03-16 | 2019-05-29 | 住友電工ハードメタル株式会社 | 表面被覆切削工具及びその製造方法 |
KR102495052B1 (ko) | 2018-10-15 | 2023-02-06 | 스미또모 덴꼬오 하드메탈 가부시끼가이샤 | 절삭 공구 |
KR102531904B1 (ko) | 2018-10-15 | 2023-05-11 | 스미또모 덴꼬오 하드메탈 가부시끼가이샤 | 절삭 공구 |
CN115351279B (zh) * | 2022-08-30 | 2023-11-21 | 株洲钻石切削刀具股份有限公司 | 一种涂层硬质合金切削刀具 |
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Also Published As
Publication number | Publication date |
---|---|
KR20090007223A (ko) | 2009-01-16 |
US20110232433A1 (en) | 2011-09-29 |
SE0701703L (sv) | 2009-04-01 |
SE531929C2 (sv) | 2009-09-08 |
JP2009028894A (ja) | 2009-02-12 |
EP2014789B1 (en) | 2012-09-12 |
CN101342602A (zh) | 2009-01-14 |
US20090017289A1 (en) | 2009-01-15 |
US7985471B2 (en) | 2011-07-26 |
EP2014789A1 (en) | 2009-01-14 |
WO2009011648A1 (en) | 2009-01-22 |
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