JP2005330539A - Abrasion-resistant coated member - Google Patents
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- JP2005330539A JP2005330539A JP2004149999A JP2004149999A JP2005330539A JP 2005330539 A JP2005330539 A JP 2005330539A JP 2004149999 A JP2004149999 A JP 2004149999A JP 2004149999 A JP2004149999 A JP 2004149999A JP 2005330539 A JP2005330539 A JP 2005330539A
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- 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
- 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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Abstract
Description
本発明は、チップ，ドリル，エンドミルに代表される切削工具、金型，切断刃などの耐摩耗用工具、軸受，ライナーなどしゅう動部材に使用される硬質被膜に関し、具体的には、ＰＶＤ法で作製される（Ａｌ，Ｃｒ）Ｎ系膜にＢを添加し、かつそれらの組成を特定範囲に制御することにより、耐摩耗性，耐溶着性，耐酸化性などを向上させて寿命を大幅に延長した耐摩耗性被覆部材に関する。 The present invention relates to hard coatings used for sliding members such as cutting tools represented by inserts, drills and end mills, tools for wear resistance such as molds and cutting blades, bearings, liners, and the like. By adding B to the (Al, Cr) N-based film produced in, and controlling the composition within a specific range, the wear resistance, welding resistance, oxidation resistance, etc. are improved and the life is greatly increased. The present invention relates to a wear-resistant covering member extended to the above.
工具に使用されるＰＶＤ被膜として、（Ｔｉ，Ａｌ）Ｎ，（Ｔｉ，Ｃｒ）Ｎ，（Ｔｉ，Ｓｉ）Ｎなどが多元系の複合窒化物膜が実用化されている。これらチタン窒化物を含有した硬質膜は耐摩耗性（硬さ）や耐酸化性が不十分なために、過酷な使用条件では寿命が短いと言う問題がある。そこで、耐酸化性や耐溶着性に優れたＣｒを主要成分とした（Ａｌ，Ｃｒ）Ｎ系被膜が種々提案されているが、硬度が劣るため高硬度被削材加工などでは耐摩耗性が劣ると言う問題がある。 As a PVD coating used for a tool, a composite nitride film in which (Ti, Al) N, (Ti, Cr) N, (Ti, Si) N, and the like are multi-component systems has been put into practical use. Since these hard films containing titanium nitride have insufficient wear resistance (hardness) and oxidation resistance, there is a problem that the life is short under severe use conditions. Therefore, various (Al, Cr) N-based coatings with Cr as the main component, which has excellent oxidation resistance and welding resistance, have been proposed. However, since the hardness is inferior, wear resistance is high when machining high-hardness work materials. There is a problem of being inferior.
（Ａｌ，Ｃｒ）Ｎ系被膜に関する従来技術として、イオンプレーティング法を用いたＡｌ−Ｃｒ−Ｎ系複合硬質膜がある（例えば、特許文献１参照。）。この耐高温酸化特性に優れた複合硬質膜の形成方法は、ＡｌとＣｒの混合蒸気と窒素との反応により（Ａｌ，Ｃｒ）Ｎ膜を形成するもので、Ａｌ２５〜７５原子％、Ｃｒ７５〜２５原子％のターゲットが好ましいと記載されている。この（Ａｌ，Ｃｒ）Ｎ膜は、耐酸化性に優れるものの硬さが低いために、工具に用いた場合には耐摩耗性が不十分と言う問題がある。 As a conventional technique related to the (Al, Cr) N-based film, there is an Al—Cr—N-based composite hard film using an ion plating method (for example, see Patent Document 1). The method for forming a composite hard film having excellent high-temperature oxidation resistance is to form an (Al, Cr) N film by the reaction of a mixed vapor of Al and Cr with nitrogen, and Al 25 to 75 atomic%, Cr 75 to 25. It is stated that an atomic percent target is preferred. Although this (Al, Cr) N film is excellent in oxidation resistance, it has a low hardness, so that it has a problem of insufficient wear resistance when used in a tool.
また、ＡｌとＸ（Ｘ：Ｃｒ、Ｖ、Ｍｇの一種）の複合窒化物、複合炭化物、複合ホウ化物、複合炭窒化物、複合ホウ窒化物、複合炭ホウ化物または複合炭窒ホウ化物からなり、そのＡｌとＸの組成が、（Ａｌ1-yＸy）但し、Ｘ：Ｃｒ、Ｖ、Ｍｇの一種０＜ｙ≦０．３で示される組成からなることを特長とする硬質皮膜がある（例えば、特許文献２参照。）。この硬質皮膜は、耐酸化性に優れたＡｌＮに特定元素の所定量を添加し、結晶系を六方晶から立方晶に変えることによって、硬さを高めて高速切削に対応できる耐摩耗性を確保したものである。しかし、Ｘの添加量が少ないために硬さ上昇が少なく、特にＣｒでは立方晶が不安定なために高速切削での耐摩耗性が不十分であると言う問題がある。 Also, it is composed of a composite nitride, composite carbide, composite boride, composite carbonitride, composite boronitride, composite carbon boride or composite carbonitride boride of Al and X (a kind of X: Cr, V, Mg). The composition of Al and X is (Al 1-y X y ) where X is a hard film characterized by comprising a composition represented by 0 <y ≦ 0.3 of one of Cr, V, and Mg (For example, refer to Patent Document 2). This hard coating has a certain amount of specific elements added to AlN, which has excellent oxidation resistance, and changes the crystal system from hexagonal to cubic to ensure hardness and high wear resistance that can be used for high-speed cutting. It is a thing. However, since the addition amount of X is small, there is a problem that the increase in hardness is small, and particularly in Cr, the cubic crystal is unstable, so that the wear resistance in high-speed cutting is insufficient.
さらに、Ｔｉ，Ｃｒ，Ｓｉ，Ｎｂ，Ｚｒ，Ａｌの１種以上より選択された元素と、非金属元素としてＮ，Ｃ，Ｏのうち１種以上より選択された元素とＢ元素を含むＢ含有皮膜を１層以上被覆してなる硬質皮膜被覆切削工具がある（例えば、特許文献３参照。）。このＢ含有皮膜は、Ｂ含有量が多いＢ高濃度粒子を皮膜内に介在させることによって、潤滑性を維持しつつ硬質皮膜の強度を高めたものである。しかし、皮膜中のＢ含有量が比較的少なく、かつＢ高濃度粒子を形成させる結果として、皮膜素地でのＢ含有量が少なくなるために硬さ（耐摩耗性），耐酸化性，耐溶着性が不十分となると言う問題がある。 Furthermore, the element selected from one or more of Ti, Cr, Si, Nb, Zr, and Al, and B containing an element selected from one or more of N, C, and O as a nonmetallic element and a B element There is a hard coating coated cutting tool formed by coating one or more coatings (for example, see Patent Document 3). This B-containing film is obtained by increasing the strength of the hard film while maintaining lubricity by interposing B high-concentration particles having a high B content in the film. However, the content of B in the film is relatively low, and as a result of forming B high-concentration particles, the B content in the film substrate decreases, resulting in hardness (wear resistance), oxidation resistance, and resistance to welding. There is a problem that the property becomes insufficient.
切削加工における高速化，難削材化，寿命延長に対応するため、被覆工具への改善要求が高まっている。上述のような問題を有する従来硬質被膜では、こうした要求に応えられなくなってきた。そこで、本発明は、耐酸化性，耐溶着性などＡｌ−Ｃｒ―Ｎ系材料の特長を改善しつつ、耐摩耗性を向上させた（Ａｌ，Ｃｒ）（Ｎ，Ｂ）膜を被覆した耐摩耗性被覆部材の提供を目的とする。 In order to cope with high speed, difficult-to-cut materials, and extended life in cutting, there is an increasing demand for improved coated tools. Conventional hard coatings having the above-mentioned problems cannot meet such demands. Therefore, the present invention improves the characteristics of Al-Cr-N materials such as oxidation resistance and welding resistance, while also improving the wear resistance and covering the (Al, Cr) (N, B) film. An object is to provide a wearable covering member.
本発明者らは、長年に亘り耐酸化性，耐溶着性に優れたＡｌ−Ｃｒ―Ｎ系硬質膜の耐摩耗性改善について検討していた所、ＡｌとＣｒが所定範囲の比率を有する複合窒化物膜に、所定量のＢを添加して（Ａｌ，Ｃｒ）（Ｎ，Ｂ）系の複合ホウ窒化物膜にすると、硬さが向上して耐摩耗性が改善されると共に、耐酸化性、耐溶着性がさらに向上することによって、工具寿命が大幅に改善されると言う知見を得て本発明を完成するに至ったものである。 The inventors of the present invention have been studying improvement of wear resistance of an Al—Cr—N hard film having excellent oxidation resistance and welding resistance for many years. A composite in which Al and Cr have a ratio within a predetermined range. When a predetermined amount of B is added to the nitride film to form an (Al, Cr) (N, B) -based composite boronitride film, hardness is improved and wear resistance is improved, and oxidation resistance is also improved. The present invention has been completed with the knowledge that the tool life is greatly improved by further improving the properties and welding resistance.
すなわち、本発明の耐摩耗性被覆部材は、基材の表面に０．３〜１０μｍの単層または多層からなる硬質膜を被覆した部材において、該硬質膜の少なくとも１層は、０．３μｍ以上１０μｍ以下の厚みでなるアルミニウムとクロムと窒素とホウ素とからなる立方晶構造を有する複合ホウ窒化物であり、該複合ホウ窒化物は組成式：（Ａｌ1-xＣｒx）（Ｎ1-yＢy）zにおいて０．３５≦x≦０．６５，０．０３≦y≦０．３，０．８≦z≦１．２を満足するものである。 That is, the wear-resistant covering member of the present invention is a member in which a hard film composed of a single layer or a multilayer of 0.3 to 10 μm is coated on the surface of the substrate, and at least one layer of the hard film is 0.3 μm or more. A composite boronitride having a cubic structure composed of aluminum, chromium, nitrogen, and boron having a thickness of 10 μm or less, the composite boronitride having a composition formula: (Al 1-x Cr x ) (N 1-y B y ) In z , 0.35 ≦ x ≦ 0.65, 0.03 ≦ y ≦ 0.3, 0.8 ≦ z ≦ 1.2 is satisfied.
本発明の耐摩耗性被覆部材における複合ホウ窒化物は、組成式：（Ａｌ1-xＣｒx）（Ｎ1-yＢy）zにおいて０．３５≦ｘ≦０．６５，０．０３≦ｙ≦０．３，０．８≦z≦１．２を満足するものである。金属成分の割合を示すｘは、０．３５未満ではＡｌが過多となって結晶系が立方晶から六方晶に変態するために、硬さの低下が著しく、逆に０．６５を超えて大きくなるとＡｌが過少となって硬さ，耐溶着性が低下するために、０．３５≦ｘ≦０．６５と定めた。また、非金属成分の割合を示すｙは、０．０３未満ではＢ添加による硬さと耐酸化性の向上効果が少なく、逆に０．３を超えて大きくなると立方晶が不安定となってホウ化物（例えば、ＣｒＢ2，ＡｌＢ2）が析出して脆化するために、０．０３≦ｙ≦０．３と定めた。さらに、金属成分と非金属成分の割合を示すｚは、０．８未満では硬さの低下が著しく、逆に１．２を超えて大きくなると立方晶が不安定となってＡｌＮやＣｒ2Ｂ，ＡｌＢ2などが析出して脆化するために、０．８≦z≦１．２と定めた。 The composite boronitride in the wear-resistant covering member of the present invention has a compositional formula: (Al 1-x Cr x ) (N 1- y By ) z 0.35 ≦ x ≦ 0.65, 0.03 ≦ It satisfies y ≦ 0.3 and 0.8 ≦ z ≦ 1.2. When x indicating the ratio of the metal component is less than 0.35, Al is excessive and the crystal system is transformed from cubic to hexagonal, so that the hardness is remarkably reduced. Then, since Al becomes too small and hardness and welding resistance decrease, it was set as 0.35 ≦ x ≦ 0.65. On the other hand, when y indicating the ratio of the nonmetallic component is less than 0.03, the effect of improving the hardness and oxidation resistance due to the addition of B is small, and conversely, when it exceeds 0.3, the cubic becomes unstable and boron becomes unstable. 0.03 ≦ y ≦ 0.3 was determined in order for the chemical compounds (for example, CrB 2 and AlB 2 ) to precipitate and become brittle. Further, z indicating the ratio of the metal component to the non-metal component is remarkably reduced in hardness when it is less than 0.8, and conversely, when it exceeds 1.2, the cubic becomes unstable and AlN or Cr 2 B , AlB 2 and the like precipitate and become brittle, so that 0.8 ≦ z ≦ 1.2.
本発明の耐摩耗性被覆部材における硬質膜は、０．３〜１０μｍの単層または多層からなり、少なくとも１層が０．３μｍ以上１０μｍ以下の厚みを有する複合ホウ窒化物からなるものである。多層からなる場合における複合ホウ窒化物以外の層は、具体的には、ＴｉＣ，ＴｉＮ，Ｔｉ（Ｃ，Ｎ），Ｔｉ（Ｃ，Ｏ），Ｔｉ（Ｃ，Ｎ，Ｏ），（Ｔｉ，Ａｌ）Ｎ，（Ｔｉ，Ｓｉ）Ｎ，（Ｔｉ、Ａｌ）（Ｃ，Ｎ，Ｏ），Ａｌ2Ｏ3，ダイヤモンド，ダイヤモンド状カーボン，ｃＢＮなどを挙げることができる。これらの中でもＰＶＤ法により被覆するＴｉ，Ｚｒ，Ｖ，Ｃｒ，Ａｌ，Ｓｉの窒化物およびこれらの複合窒化物中の少なくとも１種からなることが好ましい。 The hard film in the wear-resistant covering member of the present invention is composed of a single layer or multiple layers of 0.3 to 10 μm, and at least one layer is composed of composite boronitride having a thickness of 0.3 μm or more and 10 μm or less. Specifically, the layers other than the composite boronitride in the case of the multilayer include TiC, TiN, Ti (C, N), Ti (C, O), Ti (C, N, O), (Ti, Al ) N, (Ti, Si) N, (Ti, Al) (C, N, O), Al 2 O 3 , diamond, diamond-like carbon, cBN, and the like. Among these, it is preferable to be composed of at least one of nitrides of Ti, Zr, V, Cr, Al, Si and composite nitrides coated by the PVD method.
本発明の耐摩耗性被覆部材における硬質膜の膜厚は、０．３μｍ未満では耐摩耗性に劣り、１０μｍを超えて大きくなるとチッピングや膜剥離を生じ易くなって寿命が低下するために、０．３〜１０μｍと定めた。また、硬質膜が多層でなる場合は、基材表面に最近接する硬質層がＴｉＮまたは（Ｔｉ，Ａｌ）Ｎであると、基材との密着性が向上するために膜剥離よる寿命低下が少なくなるので望ましい。 The film thickness of the hard film in the wear-resistant covering member of the present invention is inferior in wear resistance when it is less than 0.3 μm, and when it exceeds 10 μm, chipping and film peeling are liable to occur and the life is shortened. .3-10 μm. Also, when the hard film is a multilayer, if the hard layer closest to the substrate surface is TiN or (Ti, Al) N, the adhesion with the substrate is improved, so the life reduction due to film peeling is small. This is desirable.
本発明の耐摩耗性被覆部材の製造方法は、超硬合金，サーメット，セラミックス，高速度鋼などの工具用硬質材料からなる基材の表面に、ＰＶＤ法（特に、アークイオンプレーティング）により被覆するものである。ターゲット材としてＡｌ−Ｃｒ−Ｂ系の合金を用い、減圧で窒素ガスをフローして行うと良い。 The manufacturing method of the wear-resistant covering member of the present invention is such that the surface of a base material made of a hard material for tools such as cemented carbide, cermet, ceramics, high-speed steel is coated by the PVD method (particularly, arc ion plating). To do. It is preferable to use an Al—Cr—B alloy as the target material and flow nitrogen gas under reduced pressure.
本発明の耐摩耗性被覆部材は、用途の一つとして切削工具を挙げることができる。その中でも特に、鋼の高速切削や穴明け加工用の工具が好ましい。 The wear-resistant covering member of the present invention includes a cutting tool as one of uses. Among these, steel cutting tools and drilling tools are particularly preferable.
本発明の耐摩耗性被覆部材は、基材上に被覆した（Ａｌ，Ｃｒ）Ｎ系膜が耐酸化性，耐溶着性を向上させる作用をし、含有されたＢが硬さと耐摩耗性を向上させる作用をし、それぞれが独立ではなく、本発明で開示した組成式：（Ａｌ1-xＣｒx）（Ｎ1-yＢy）zにおいて０．３５≦ｘ≦０．６５，０．０３≦ｙ≦０．３，０．８≦z≦１．２を満足することによって切削工具や耐摩耗部品に使用した場合に長寿命を発揮させる作用をしているものである。 In the wear-resistant covering member of the present invention, the (Al, Cr) N-based film coated on the base material acts to improve oxidation resistance and welding resistance, and the contained B has hardness and wear resistance. They are not independent of each other, and 0.35 ≦ x ≦ 0.65, 0... In the composition formula disclosed in the present invention: (Al 1−x Cr x ) (N 1− y By ) z Satisfying 03 ≦ y ≦ 0.3 and 0.8 ≦ z ≦ 1.2 has the effect of exerting a long life when used in cutting tools and wear-resistant parts.
従来の（Ｔｉ，Ａｌ）Ｎ，（Ａｌ，Ｃｒ）Ｎなどの硬質膜よりも、硬さと耐酸化性，耐溶着性が高いため、鋼の高速切削や穴明け加工において工具寿命が顕著に長くなるという効果がある。 Compared to conventional hard films such as (Ti, Al) N, (Al, Cr) N, etc., the tool life is significantly longer in high-speed steel cutting and drilling due to higher hardness, oxidation resistance and welding resistance. There is an effect of becoming.
基材として、８２ＷＣ−４ＴｉＣ−６ＴａＣ−６Ｃｏ（重量％）の組成、ＨＲＡ＝９１．０の硬さを有する超硬チップ（ＩＳＯ規格でＳＮＧＮ１２０４０８）をアークイオンプレーティング装置に挿入して１ｘ１０−４〜３Ｘ１０−５Ｐａの真空とした後、超硬チップを５００℃に加熱し、Ａｒガスを導入しながら−１０００Ｖのバイアス電圧をかけることにより、チップ表面を十分に洗浄した後、脱気を行った。次いで、表１に示したターゲット組成，Ｎ2ガスの流量，バイアス電圧，処理時間の組み合わせ条件でもって順次アーク放電させ、チップ表面に硬質膜を蒸着することよって、本発明品１〜7と比較品１〜５を得た。得られた硬質膜のＸ線回折結果と硬さを表２に示す。また、各層ごと厚みと組成、および組成から算出した指数｛（Ａｌ1-xＣｒx）（Ｎ1-yＢy）zにおけるｘ，ｙ， zの値｝を表３に示す。 As a base material, a cemented carbide tip (SNGN120408 in ISO standard) having a composition of 82WC-4TiC-6TaC-6Co (wt%) and a hardness of HRA = 91.0 is inserted into an arc ion plating apparatus, and 1 × 10 −4. After a vacuum of ˜3 × 10 −5 Pa, the cemented carbide chip was heated to 500 ° C., and a bias voltage of −1000 V was applied while introducing Ar gas. . Next, the arc composition was sequentially arc-discharged under the combination conditions of the target composition, N 2 gas flow rate, bias voltage, and processing time shown in Table 1, and a hard film was deposited on the chip surface. Items 1 to 5 were obtained. Table 2 shows the X-ray diffraction results and hardness of the obtained hard film. Also shows the composition and the layers per thickness, and calculated indices from the composition of {(Al 1-x Cr x ) (N 1-y B y) x in z, y, the value of z} Table 3.
表２の結果から、本発明品の硬質膜はいずれも立方晶の（Ａｌ，Ｃｒ）（Ｎ，Ｂ）層を有し、比較品より高硬度であることが分かる。 From the results shown in Table 2, it can be seen that the hard films of the present invention each have a cubic (Al, Cr) (N, B) layer and are harder than the comparative product.
次に、実施例１で得られた本発明品３，４，５，６および比較品１，２，３，５の各被覆チップを用いて被削材：Ｓ４８Ｃ（４本溝入り），切削速度：２００ｍ／ｍｉｎ，切込み：２．０ｍｍ，送り：０．２０ｍｍ／ｒｅｖの条件で乾式断続旋削試験を行い、切刃のチッピング，刃先の破損および平均逃げ面摩耗幅が０．２０ｍｍとなるまでの平均寿命時間を求めた。その結果を表４に示す。 Next, using the coated tips of the inventive products 3, 4, 5, 6 and comparative products 1, 2, 3, 5 obtained in Example 1, the work material: S48C (with four grooves), cutting A dry interrupted turning test was conducted under the conditions of speed: 200 m / min, depth of cut: 2.0 mm, feed: 0.20 mm / rev, until the cutting edge chipping, edge damage and average flank wear width reached 0.20 mm. The average life time was determined. The results are shown in Table 4.
さらに、実施例１で得られた本発明品３，４，５および比較品１，２，５の各被覆チップを用いて摩擦試験を実施した。摩擦条件は、摩擦面：被覆チップのすくい面、相手材：φ６ｍｍのＳＵＪ２ボール、雰囲気：大気中の乾式、荷重：４．９Ｎ、しゅう動速度：５ｍ／ｍｉｎ、摩擦時間：２０ｍｉｎで行った。表５に平均摩擦係数と粗さ計による摩擦痕の断面積から算出した摩耗体積を示す。 Further, a friction test was performed using the coated chips of the present invention products 3, 4, 5 and the comparative products 1, 2, 5 obtained in Example 1. The friction conditions were as follows: friction surface: rake face of coated chip, mating material: φ6 mm SUJ2 ball, atmosphere: dry in air, load: 4.9 N, sliding speed: 5 m / min, friction time: 20 min. Table 5 shows the wear volume calculated from the average friction coefficient and the cross-sectional area of the friction trace by the roughness meter.
市販されている超硬合金製ソリッドドリル（６．０φｍｍ，組成：ＷＣ−１０ｗｔ％Ｃｏ，硬さ：ＨＲＡ＝９１．５）を基材として用い、実施例１と同様の条件で硬質膜を被覆することによって、本発明品８〜１１と比較品６〜８の被覆ドリルを得た。そして、被削材：４５Ｃ，切削外周速度：８０ｍ／ｍｉｎ，穴深さ：４０ｍｍ，乾式加工の条件で穴明け加工を連続して行った。刃先のチッピング発生、折損あるいは切り屑詰まりによる急激なトルク上昇が発生するまでの加工可能な穴数を表５に示す。４００穴加工まで正常であった場合には、刃先の平均逃げ面摩耗量を併記した。 A hard film coated with a hard film under the same conditions as in Example 1, using a commercially available solid drill made of cemented carbide (6.0 mm, composition: WC-10 wt% Co, hardness: HRA = 91.5) as a base material By doing this, the covering drill of this invention goods 8-11 and comparative goods 6-8 was obtained. Then, drilling was continuously performed under the conditions of the work material: 45C, cutting peripheral speed: 80 m / min, hole depth: 40 mm, and dry processing. Table 5 shows the number of holes that can be machined until a sharp torque increase occurs due to chipping, breakage or chip clogging. When it was normal up to the 400 hole machining, the average flank wear amount of the cutting edge was also shown.
表４，６の結果から、本発明品は鋼の高速断続旋削およびドリルによる穴明け加工において比較品より長寿命であり、耐摩耗性，耐溶着性，耐酸化性に優れることが分かる。また、表５の結果から、本発明品は比較品よりも摩擦係数と摩耗量が小さいことから、耐摩耗部品やしゅう動部材への応用が期待できる。
From the results of Tables 4 and 6, it can be seen that the product of the present invention has a longer life than the comparative product in high-speed intermittent turning of steel and drilling with a drill, and is superior in wear resistance, welding resistance, and oxidation resistance. Further, from the results of Table 5, since the product of the present invention has a smaller coefficient of friction and wear than the comparative product, application to wear-resistant parts and sliding members can be expected.
Claims (2)
組成式：（Ａｌ1-xＣｒx）（Ｎ1-yＢy）zにおいて０．３５≦x≦０．６５，０．０３≦y≦０．３，０．８≦z≦１．２を満足する耐摩耗性被覆部材。 In a member in which a hard film composed of a single layer or a multilayer of 0.3 to 10 μm is coated on the surface of the substrate, at least one layer of the hard film is made of aluminum, chromium, and nitrogen having a thickness of 0.3 μm or more and 10 μm or less. A composite boronitride having a cubic structure composed of boron,
Composition formula: (Al 1−x Cr x ) (N 1− y By ) z 0.35 ≦ x ≦ 0.65, 0.03 ≦ y ≦ 0.3, 0.8 ≦ z ≦ 1.2 Wear-resistant covering member that satisfies the requirements.
2. The hard film is multi-layered, and the layers excluding the composite boronitride layer are composed of nitrides of titanium, zirconium, vanadium, chromium, aluminum, silicon, and at least one of these composite nitrides. Wear-resistant covering member.
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| JP2006224223A (en) * | 2005-02-16 | 2006-08-31 | Mitsubishi Materials Corp | Cutting tool made of surface covered cemented carbide with hard covering layer displaying excellent abrasion resistance in high speed cutting work of heat resisting alloy |
| JP2007030133A (en) * | 2005-07-29 | 2007-02-08 | Mitsubishi Materials Corp | Gear cutting tool made of surface coated cemented carbide having hard coated layer exhibiting excellent wear resistance in high-speed cutting gear cutting of alloy steel |
| JP2007061994A (en) * | 2005-09-02 | 2007-03-15 | Mitsubishi Materials Corp | Surface coated high speed tool steel-made gear cutting tool realizing excellent wear and abrasion resistance of hard coated layer in high speed gear cutting working of alloy steel |
| JP2008030158A (en) * | 2006-07-28 | 2008-02-14 | Mitsubishi Materials Corp | Surface coat cutting tool having hard coating layer exhibiting excellent chipping resistance and wear resistance in high-speed cutting of heat-resistant alloy |
| KR101132082B1 (en) | 2009-07-16 | 2012-04-02 | 울산대학교 산학협력단 | Superhard CrAlBN nano -multilayered thin films and method thereof |
| US20130052477A1 (en) * | 2010-02-04 | 2013-02-28 | Oerlikon Trading Ag, Trübbach | CUTTING TOOLS WITH Al-Cr-B-N/Ti-Al-N MULTILAYER COATINGS |
| US20130309469A1 (en) * | 2011-02-01 | 2013-11-21 | Osg Corporation | Hard laminar coating |
| JP2016047545A (en) * | 2014-08-28 | 2016-04-07 | Ｊｆｅスチール株式会社 | Plug for piercing-rolling on seamless steel pipe |
| JP2016047546A (en) * | 2014-08-28 | 2016-04-07 | Ｊｆｅスチール株式会社 | Method for manufacturing seamless steel pipe |
| US9528186B2 (en) | 2013-02-07 | 2016-12-27 | Mitsubishi Heavy Industries Machine Tool Co., Ltd. | Surface-coating material, cutting tool in which said material is used, and working machine in which said material is used |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006224223A (en) * | 2005-02-16 | 2006-08-31 | Mitsubishi Materials Corp | Cutting tool made of surface covered cemented carbide with hard covering layer displaying excellent abrasion resistance in high speed cutting work of heat resisting alloy |
| JP2007030133A (en) * | 2005-07-29 | 2007-02-08 | Mitsubishi Materials Corp | Gear cutting tool made of surface coated cemented carbide having hard coated layer exhibiting excellent wear resistance in high-speed cutting gear cutting of alloy steel |
| JP4706912B2 (en) * | 2005-07-29 | 2011-06-22 | 三菱マテリアル株式会社 | Surface-coated cemented carbide cutting tool with excellent wear resistance due to high-speed gear cutting of alloy steel |
| JP2007061994A (en) * | 2005-09-02 | 2007-03-15 | Mitsubishi Materials Corp | Surface coated high speed tool steel-made gear cutting tool realizing excellent wear and abrasion resistance of hard coated layer in high speed gear cutting working of alloy steel |
| JP4706916B2 (en) * | 2005-09-02 | 2011-06-22 | 三菱マテリアル株式会社 | Surface coated high speed tool steel gear cutting tool with excellent wear resistance with hard coating layer in high speed gear cutting of alloy steel |
| JP2008030158A (en) * | 2006-07-28 | 2008-02-14 | Mitsubishi Materials Corp | Surface coat cutting tool having hard coating layer exhibiting excellent chipping resistance and wear resistance in high-speed cutting of heat-resistant alloy |
| KR101132082B1 (en) | 2009-07-16 | 2012-04-02 | 울산대학교 산학협력단 | Superhard CrAlBN nano -multilayered thin films and method thereof |
| JP2013518987A (en) * | 2010-02-04 | 2013-05-23 | エリコン・トレーディング・アクチェンゲゼルシャフト，トリュープバッハ | Cutting tool with AL-Cr-BN / Ti-Al-N multilayer coating |
| US20130052477A1 (en) * | 2010-02-04 | 2013-02-28 | Oerlikon Trading Ag, Trübbach | CUTTING TOOLS WITH Al-Cr-B-N/Ti-Al-N MULTILAYER COATINGS |
| US8926722B2 (en) * | 2010-02-04 | 2015-01-06 | Oerlikon Trading Ag, Truebbach | Cutting tools with Al—Cr—B—N/Ti—Al—N multilayer coatings |
| KR101800039B1 (en) | 2010-02-04 | 2017-12-20 | 오를리콘 서피스 솔루션스 아크티엔게젤샤프트, 페피콘 | CUTTING TOOLS WITH Αl-Cr-B-N/Ti-Al-N MULTILAYER COATING |
| US20130309469A1 (en) * | 2011-02-01 | 2013-11-21 | Osg Corporation | Hard laminar coating |
| KR101544661B1 (en) * | 2011-02-01 | 2015-08-17 | 오에스지 가부시키가이샤 | Hard laminated coating |
| US9109280B2 (en) * | 2011-02-01 | 2015-08-18 | Osg Corporation | Hard laminar coating |
| US9528186B2 (en) | 2013-02-07 | 2016-12-27 | Mitsubishi Heavy Industries Machine Tool Co., Ltd. | Surface-coating material, cutting tool in which said material is used, and working machine in which said material is used |
| JP2016047545A (en) * | 2014-08-28 | 2016-04-07 | Ｊｆｅスチール株式会社 | Plug for piercing-rolling on seamless steel pipe |
| JP2016047546A (en) * | 2014-08-28 | 2016-04-07 | Ｊｆｅスチール株式会社 | Method for manufacturing seamless steel pipe |
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