JP2001287104A - COVERED cBN-CONTAINING SINTERED BODY CUTTING TOOL - Google Patents
COVERED cBN-CONTAINING SINTERED BODY CUTTING TOOLInfo
- Publication number
- JP2001287104A JP2001287104A JP2000102327A JP2000102327A JP2001287104A JP 2001287104 A JP2001287104 A JP 2001287104A JP 2000102327 A JP2000102327 A JP 2000102327A JP 2000102327 A JP2000102327 A JP 2000102327A JP 2001287104 A JP2001287104 A JP 2001287104A
- Authority
- JP
- Japan
- Prior art keywords
- cbn
- sintered body
- containing sintered
- aluminum oxynitride
- cutting tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はcBN含有焼結体上に
酸窒化アルミニウム層を被覆した切削工具に関し、特に
cBN含有焼結体と被覆層との密着強度が向上し、被覆層
が高い耐摩耗性を持つ酸窒化アルミニウム層被覆cBN含
有焼結体切削工具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool in which a cBN-containing sintered body is coated with an aluminum oxynitride layer,
The present invention relates to a cutting tool for a cBN-containing sintered body coated with an aluminum oxynitride layer, in which the adhesion strength between the cBN-containing sintered body and the coating layer is improved and the coating layer has high wear resistance.
【０００２】[0002]
【従来の技術】高硬度鋼加工用工具として、cBN含有焼
結体切削工具の使用が増加してきている。近年加工速度
の高速化に伴い、cBN含有焼結体工具の耐摩耗性向上の
必要が出てきた。この解決手段として、cBN含有焼結体
上への硬質膜被覆がある。cBN含有焼結体上への硬質膜
被覆として、Al2O3，TiN，（TiAｌ）N等が知られている
が、Al2O3はcBN含有焼結体との結合力が弱い問題点があ
る。また、TiN，（TiAｌ）Nは高硬度鋼加工における耐
摩耗性が不十分である。酸窒化アルミニウム膜を超硬合
金、セラミックス上に被覆した工具も知られているが、
高硬度鋼加工では、母材の耐塑性変形性が不十分であ
る。2. Description of the Related Art The use of cBN-containing sintered compact cutting tools has increased as a tool for machining high-hardness steel. In recent years, with the increase in processing speed, it has become necessary to improve the wear resistance of sintered tools containing cBN. As a solution to this, there is a hard film coating on the cBN-containing sintered body. Al 2 O 3 , TiN, (TiAl) N, etc. are known as hard film coatings on cBN-containing sintered bodies, but Al 2 O 3 has a weak bonding force with cBN-containing sintered bodies. There is. Further, TiN and (TiAl) N have insufficient wear resistance in machining hardened steel. Tools with aluminum oxynitride film coated on cemented carbide and ceramics are also known,
In hardened steel processing, the plastic deformation resistance of the base material is insufficient.
【０００３】[0003]
【発明の解決しようとする課題】cBN含有焼結体上へのA
l2O3膜被覆の発明として特開昭５９−８６７９号公報に
提案されているが、cBN含有焼結体に直接Al2O3を被覆す
ると、十分な密着強度が得られない。そこで特開平１０
−２２７６１０号公報では、cBN含有焼結体のバインダ
ーとしてAl2O3を配合する提案がされているが、バイン
ダーとしてAl2O3を添加することにより、cBN含有焼結体
の物性、特に強度が低下してしまう問題がある。SUMMARY OF THE INVENTION A on cBN-containing sintered body
Japanese Patent Application Laid-Open No. S59-8679 proposes an invention of l 2 O 3 film coating. However, if Al 2 O 3 is directly coated on a cBN-containing sintered body, sufficient adhesion strength cannot be obtained. Therefore, Japanese Patent Application Laid-Open
JP-A-227610 proposes to mix Al 2 O 3 as a binder for the cBN-containing sintered body, but by adding Al 2 O 3 as a binder, the physical properties of the cBN-containing sintered body, particularly the strength, Is reduced.
【０００４】また、特開平１０−０８６００２号公報，
特開平０５−０４３３２３号公報では、超硬合金及びセ
ラミックス上への酸窒化アルミニウム膜被覆が提案され
ているが、母材との結合力が弱いため被覆層が剥離して
しまうことや、高硬度鋼の高速加工では母材が塑性変形
してしまう問題がある。本発明は上記問題を解決し、高
硬度鋼切削で耐摩耗性に優れる工具を提供する。[0004] Also, Japanese Patent Application Laid-Open No. 10-086002,
Japanese Patent Application Laid-Open No. 05-043323 proposes coating of an aluminum oxynitride film on a cemented carbide and ceramics. In high-speed processing of steel, there is a problem that the base material is plastically deformed. The present invention solves the above problems and provides a tool having excellent wear resistance in cutting hardened steel.
【０００５】[0005]
【課題を解決する手段】本発明はcBNを体積で２５〜９
９％含有するcBN含有焼結体上に、１層以上の酸窒化ア
ルミニウム層を含む硬質被膜を被覆することにより、優
れた密着性と耐摩耗性を兼ね備えた切削工具が得られた
ものである。cBN含有焼結体上へ隣接する被覆層として
の酸窒化アルミニウムは、Al2O3と比較してcBN含有焼結
体との密着性に優れ、Al2O3に匹敵する耐酸化性と耐摩
耗性を持ち、Al2O3より高い熱伝導性と耐熱衝撃性を持
つことが明らかとなり、特に高硬度鋼の切削に対して優
れた切削性能を有する。According to the present invention, cBN is contained in an amount of 25 to 9 by volume.
By coating a hard coating containing at least one aluminum oxynitride layer on a cBN-containing sintered body containing 9%, a cutting tool having both excellent adhesion and wear resistance was obtained. . aluminum nitride as a coating layer adjacent to the cBN content sintered body on the excellent adhesion to the cBN content sintered body as compared with Al 2 O 3, oxidation resistance and comparable to Al 2 O 3 It is clear that it has abrasion, has higher thermal conductivity and thermal shock resistance than Al 2 O 3 , and has excellent cutting performance especially for cutting hardened steel.
【０００６】酸窒化アルミニウムは、耐摩耗性の点か
ら、酸化アルミニウムに窒素が１原子％以上固溶したAl
-O-N固溶体もしくはAl23O27N5、Al2O2N、Al9O3N7などの
AlxOyNzで表される化合物と限定した。場合によって
は、ＡｌＮを５０％以下含有させることにより、より熱
伝導性が優れた被膜が得られ、刃先で発生する切削熱を
速やかに放熱し易くなる。酸窒化アルミニウム層１層あ
たりの厚さは0.5μm未満では密着性の点では十分である
が、所望の耐摩耗性が得られず、10μmより厚い場合は
被膜の面粗さの増大や靭性の低下が顕著になるため、１
層あたりの厚さを0.5〜10μｍと限定した。また、被覆
層全体としては、0.5μmより薄い場合は所望の耐摩耗性
が得られず、５０μmより厚い場合は被膜応力の増大に
より工具全体が脆化するため0.5〜５０μｍと限定し
た。[0006] Aluminum oxynitride is an aluminum oxide containing 1 atomic% or more of nitrogen in aluminum oxide from the viewpoint of wear resistance.
-ON solid solution or Al 23 O 27 N 5 , Al 2 O 2 N, Al 9 O 3 N 7 etc.
Limited to compounds represented by AlxOyNz. In some cases, by containing 50% or less of AlN, a coating having better thermal conductivity can be obtained, and the cutting heat generated at the cutting edge can be easily radiated quickly. If the thickness per aluminum oxynitride layer is less than 0.5 μm, the adhesion is sufficient, but the desired wear resistance cannot be obtained. If the thickness is more than 10 μm, the surface roughness and toughness of the coating increase. Since the decrease is remarkable, 1
The thickness per layer was limited to 0.5-10 μm. When the thickness of the coating layer is less than 0.5 μm, the desired wear resistance cannot be obtained. When the thickness is more than 50 μm, the coating stress increases and the entire tool becomes brittle, so that the thickness is limited to 0.5 to 50 μm.
【０００７】更に耐摩耗性を向上させるために複数膜構
造とし、cBN含有焼結体表面に隣接して酸窒化アルミニ
ウム層を被覆することにより、外層膜と強固に密着した
下地層としての働きを持つ。酸窒化アルミニウム層とcB
N含有焼結体は、酸窒化アルミニウム層に含まれる窒素
原子が、cBN含有焼結体の含有成分であるcBN砥粒及びバ
インダー中の金属の窒化物が共に共有結合であってかつ
窒化物であるために、成膜時の核発生因子として働き、
酸窒化アルミニウム層とcBN含有焼結体が密着するが、
焼結体中にAlN、Al-O-Nの少なくとも1種を含むことによ
り、さらに強固に密着することが明らかとなった。In order to further improve abrasion resistance, a multi-layer structure is formed, and an aluminum oxynitride layer is coated adjacent to the surface of the cBN-containing sintered body to function as an underlayer which is firmly adhered to the outer layer film. Have. Aluminum oxynitride layer and cB
In the N-containing sintered body, the nitrogen atoms contained in the aluminum oxynitride layer are covalently bonded to the cBN abrasive grains, which are the components contained in the cBN-containing sintered body, and the nitride of the metal in the binder. Because it acts as a nucleation factor during film formation,
The aluminum oxynitride layer and the cBN-containing sintered body adhere to each other,
It was clarified that the inclusion of at least one of AlN and Al-ON in the sintered body further firmly adhered.
【０００８】被膜は複層とすることにより広い切削領域
に適用でき、具体的には、Al2O3，TiCN，TiB2、AlN、Ti
C、TiN、TiCNO、(Ti，Al)Ｎ、(Ti，Al)ＣＮ、(Ti，Al)
ＣＮＯの少なくとも1種もしくは2種以上を被覆する。よ
り高速領域で耐摩耗性が要求される場合はAl2O3が望ま
しく、0.1μmより薄くては所望の耐摩耗性と耐酸化性が
得られず、40μmより厚い場合は被膜全体が脆くなるた
め、0.1〜40μmと定めた。以下に本発明の実施例を示
す。The coating can be applied to a wide cutting area by forming a multilayer, and specifically, Al 2 O 3 , TiCN, TiB 2 , AlN, Ti
C, TiN, TiCNO, (Ti, Al) N, (Ti, Al) CN, (Ti, Al)
At least one or two or more CNOs are coated. When wear resistance is required in a higher speed region, Al 2 O 3 is desirable.If the thickness is less than 0.1 μm, the desired wear resistance and oxidation resistance cannot be obtained, and if the thickness is greater than 40 μm, the entire coating becomes brittle. Therefore, it was set to 0.1 to 40 μm. Hereinafter, examples of the present invention will be described.
【０００９】[0009]
【実施例１】cBN含有量が体積比で６５％，残部がTiNと
Alである原料を6GPa，１７７３Ｋで焼結したcBN含有焼
結体を被覆母材として使用し、熱ＣＶＤ法により、Al2O
3膜、AlxOyNz膜を作製し、切削試験により評価を行っ
た。被削材はHRc６０のSKD11を使用し、一部断続を含む
乾式旋削試験を実施した。各膜の成膜条件を表１に示
す。[Example 1] The cBN content was 65% by volume and the balance was TiN.
Raw material 6GPa is Al, the sintered cBN containing sintered body used as a covering matrix at 1773K, by a thermal CVD method, Al 2 O
Three films and an AlxOyNz film were prepared and evaluated by a cutting test. As the work material, SKD11 of HRc60 was used, and a dry turning test including partly interrupted was performed. Table 1 shows the film forming conditions for each film.
【００１０】[0010]
【表１】各種被膜の成膜ガス条件 単位は体積％[Table 1] Deposition gas conditions for various coatings The unit is volume%
【００１１】成膜温度は１２７３Ｋで、成膜厚さ３μｍ
となるように成膜時間を調整した。得られた被膜は、オ
ージェ分光分析、X線回折分析により分析を行い、AlxOy
Nｚ膜（１）はＮを２原子％含むAl2O3(N)であり、AlxOy
Nｚ膜（２）はＮを９原子％含むAl23O27N5であり、AlxO
yNｚ膜（３）はＮを２８原子％のＮを含むAl9O3N7とAl2
O2Nの混合物と確認された。得られた硬質膜被覆工具と
比較として被覆前の工具について切削試験を実施した。
結果を表２に示す。The film formation temperature is 1273 K, and the film thickness is 3 μm.
The film forming time was adjusted so that The obtained coating was analyzed by Auger spectroscopy and X-ray diffraction analysis, and AlxOy
The Nz film (1) is Al 2 O 3 (N) containing 2 atomic% of N, and AlxOy
The Nz film (2) is Al 23 O 27 N 5 containing 9 atomic% of N, and AlxO
The yNz film (3) is composed of Al 9 O 3 N 7 containing 28 atomic% of N and Al 2
Identified as a mixture of O 2 N. A cutting test was performed on the tool before coating as a comparison with the obtained hard film-coated tool.
Table 2 shows the results.
【００１２】[0012]
【表２】 切削条件：Ｖ＝１８０m/min,ｄ＝０．１５mm,ｆ＝０．
０７mm,切削時間２０min[Table 2] Cutting conditions: V = 180 m / min, d = 0.15 mm, f = 0.
07mm, cutting time 20min
【００１３】表２の結果よりAl2O3膜と比較して、酸窒
化アルミニウム層（特にAlｘOyNz膜（１），AlｘOyNz膜
（２））は母材のｃＢＮ含有焼結体との密着性に優れ、
被覆なし品と比較して大幅な耐摩耗性向上が可能となっ
た。From the results shown in Table 2, the aluminum oxynitride layers (particularly, AlxOyNz films (1) and AlxOyNz films (2)) have better adhesion to the cBN-containing sintered body of the base material than the Al 2 O 3 film. Excellent,
Abrasion resistance can be greatly improved compared to uncoated products.
【００１４】[0014]
【実施例２】cBN含有量が体積比で６５％，残部がTiNと
Alである原料を6GPa，１７７３Ｋで焼結したcBN含有焼
結体を被覆母材として使用し、熱ＣＶＤ法により、Al2O
3膜、Al 2O3膜とcBN含有焼結体の間にAl-O-N固溶体膜を
中間層として被覆したものとの比較切削試験により評価
を行った。被削材はHRc６０のSKD11を使用し、一部断続
を含む乾式旋削試験を実施した。成膜条件は表１に準ず
るが、膜全体の厚さを同じとするため、Al2O3膜は３μ
ｍ、AlｘOyNz膜（２）＋Al2O3膜は：AlｘOyNz膜
（２）：０．５μｍ，Al2O3膜：２．５μｍとした。得
られた硬質膜被覆工具と比較として被覆前の工具につい
て切削試験を実施した。結果を表３に示す。Example 2 The cBN content was 65% by volume and the balance was TiN.
CBN-containing sintering sintered Al material at 6GPa, 1773K
Using the binder as a coating base material, thermal CVDTwoO
ThreeFilm, Al TwoOThreeAl-O-N solid solution film between film and cBN-containing sintered body
Evaluated by comparative cutting test with that coated as an intermediate layer
Was done. Work material uses SKD11 of HRc60, and partly intermittent
A dry turning test was carried out. The film formation conditions are based on Table 1.
However, to make the thickness of the entire film the same,TwoOThreeThe membrane is 3μ
m, AlxOyNz film (2) + AlTwoOThreeFilm: AlxOyNz film
(2): 0.5 μm, AlTwoOThreeFilm: 2.5 μm. Profit
Tool before coating as a comparison with
A cutting test was performed. Table 3 shows the results.
【００１５】[0015]
【表３】 切削条件：Ｖ＝１８０m/min,ｄ＝０．１５mm,ｆ＝０．
０７mm,切削時間２０min[Table 3] Cutting conditions: V = 180 m / min, d = 0.15 mm, f = 0.
07mm, cutting time 20min
【００１６】表３の結果より、酸窒化アルミニウム層は
cBN含有焼結体とAl2O3膜との密着中間層としても有効に
働くことが分かる。From the results shown in Table 3, the aluminum oxynitride layer is
It can be seen that it works effectively also as an adhesion intermediate layer between the cBN-containing sintered body and the Al 2 O 3 film.
【００１７】[0017]
【実施例３】cBN含有量が体積比で６５％，AlN２％、残
部がTiNとAlである原料と、Al2O2N５％，残部がTiNとAl
である原料を6GPa，１７７３Ｋで焼結したcBN含有焼結
体を被覆母材として使用し、熱ＣＶＤ法により、Al2O3
膜、AlｘOyNz膜（２）、AlｘOyNzを作製し、切削試験に
より評価を行った。被削材はHRc６０のSKD11を使用し、
一部断続を含む乾式旋削試験を実施した。成膜温度は１
２７３Ｋで、成膜厚さ３μｍとなるように成膜時間を調
整した。得られた硬質膜被覆工具と比較として被覆前の
工具について切削試験を実施した。結果を表４に示す。Embodiment 3 A raw material having a cBN content of 65% by volume, AlN 2%, and the balance TiN and Al, and Al 2 O 2 N 5%, the balance being TiN and Al
A cBN-containing sintered body obtained by sintering the raw material at 6 GPa and 1773 K is used as a coating base material, and Al 2 O 3
A film, an AlxOyNz film (2) and an AlxOyNz were prepared and evaluated by a cutting test. The work material uses SKD11 of HRc60,
Dry turning tests including some intermittent operations were performed. The deposition temperature is 1
At 273K, the film formation time was adjusted so that the film thickness was 3 μm. A cutting test was performed on the tool before coating as a comparison with the obtained hard film-coated tool. Table 4 shows the results.
【００１８】[0018]
【表４】 加工条件：Ｖ＝１８０m/min,ｄ＝０．１５mm,ｆ＝０．
０７mm,加工時間２０min[Table 4] Processing conditions: V = 180 m / min, d = 0.15 mm, f = 0.
07mm, processing time 20min
【００１９】ｃBN含有焼結体のバインダーにAlN 、或い
はAl2O2Nが含まれることにより、ｃBN含有焼結体自体の
耐摩耗性は多少損なわれるようであるが、被覆膜との密
着性は良好であり、AlｘOyNz膜（２）を被覆した場合は
更に耐摩耗性が向上する。副次的効果として、Al2O3膜
とｃBN含有焼結体との密着性も向上している。Although the binder of the cBN-containing sintered body contains AlN or Al 2 O 2 N, the abrasion resistance of the cBN-containing sintered body itself seems to be somewhat impaired. The abrasion resistance is further improved when the AlxOyNz film (2) is coated. As a secondary effect, the adhesion between the Al 2 O 3 film and the cBN-containing sintered body is also improved.
【００２０】[0020]
【実施例４】cBN含有量が体積比で６５％，残部がTiNと
Alである原料を6GPa，１７７３Ｋで焼結したcBN含有焼
結体を被覆母材として使用し、熱ＣＶＤ法により、０．
５μｍのAlｘOyNz膜（２）を作製し、その上に２．５μ
ｍのAl2O3膜を被覆した基板に対して、熱ＣＶＤ法にてT
iNを１μｍ被覆したものと、Al2O3膜とTiNの間に０．５
μｍのAlｘOyNz膜（２）を被覆した試料について切削試
験により評価を行った。被削材はHRc６０のSKD11を使用
し、一部断続を含む乾式旋削試験を実施した。結果を表
５に示す。Example 4 The cBN content was 65% by volume and the balance was TiN.
A cBN-containing sintered body obtained by sintering a raw material of Al at 6 GPa and 1773 K is used as a coating base material, and is subjected to a thermal CVD method to obtain a 0.1 g / m 2.
A 5 μm AlxOyNz film (2) is formed, and a 2.5 μm
The substrate coated with the Al2O3
iN coated at 1 μm and 0.5 μm between Al 2 O 3 film and TiN
A sample coated with a μm AlxOyNz film (2) was evaluated by a cutting test. As the work material, SKD11 of HRc60 was used, and a dry turning test including partly interrupted was performed. Table 5 shows the results.
【００２１】[0021]
【表５】 加工条件：Ｖ＝１８０m/min,ｄ＝０．１５mm,ｆ＝０．
０７mm，加工時間２０min[Table 5] Processing conditions: V = 180 m / min, d = 0.15 mm, f = 0.
07mm, processing time 20min
【００２２】表５の結果のようにAl2O3膜とTiN膜間の密
着性向上にも酸窒化アルミニウム層は有効である。As shown in Table 5, the aluminum oxynitride layer is also effective for improving the adhesion between the Al 2 O 3 film and the TiN film.
【００２３】[0023]
【実施例５】実施例４まではＣＶＤ装置を用いたテスト
であるが、実施例５ではＰＶＤ装置によりcBN含有焼結
体上へのAl-O-N膜被覆を行った。装置はアンバランスト
マグネトロン スパッタリンク型のPVDを用い、Al2O3
ターゲット、0.1Torrのアルゴン／窒素の混合雰囲気下
で３時間成膜を行ったところ、ｃＢＮ含有焼結体上に４
μｍのAl-O-N膜が被覆した。被覆できたAl-O-N膜はAl23
O27Nの化学式を持つγALONを５原子％含むAl2O3であ
る。Embodiment 5 The tests up to Example 4 are tests using a CVD apparatus, but in Example 5, an Al-ON film was coated on a cBN-containing sintered body by a PVD apparatus. The equipment uses unbalanced magnetron sputter-link type PVD, and Al 2 O 3
When a film was formed for 3 hours in a target atmosphere of 0.1 Torr of argon / nitrogen, 4 g of a film were formed on the cBN-containing sintered body.
A μm Al-ON film was coated. The coated Al-ON film is Al 23
Al 2 O 3 containing 5 atomic% of γALON having a chemical formula of O 27 N.
【００２４】[0024]
【発明の効果】ｃBN含有焼結体上に酸窒化アルミニウム
層を被覆することにより、基材と被覆層が強固に密着し
た硬質膜被覆cBN含有焼結体工具が得られ、高硬度鋼な
どの加工で優れた工具寿命を得ることができた。酸窒化
アルミニウム層をcBN含有焼結体と上部被覆層との間に
中間層として被覆することにより、上部被覆層と、cBN
含有焼結体間の耐剥離性を大幅に向上することが出来、
高硬度鋼などの加工で優れた工具寿命を得ることができ
た。By coating an aluminum oxynitride layer on a cBN-containing sintered body, a hard-film-coated cBN-containing sintered body tool in which the base material and the coating layer are firmly adhered to each other can be obtained. Excellent tool life was obtained by machining. By coating the aluminum oxynitride layer as an intermediate layer between the cBN-containing sintered body and the upper coating layer, the upper coating layer, cBN
The peeling resistance between the contained sintered bodies can be greatly improved,
Excellent tool life was obtained by machining hardened steel.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ２２Ｃ 29/04 Ｃ２２Ｃ 29/04 29/10 29/10 29/12 29/12 29/14 29/14 Ｚ 29/16 29/16 Ｇ Ｈ Ｃ２３Ｃ 8/24 Ｃ２３Ｃ 8/24 (72)発明者 清 晴彦 神奈川県川崎市幸区堀川町580番地 ソリ ッドスクエア 東芝タンガロイ株式会社内 Ｆターム(参考） 3C046 FF02 FF10 FF13 FF16 FF25 FF35 HH06 4K018 AD15 BA08 BA11 DA11 FA24 KA15 4K028 AA02 AB04 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) C22C 29/04 C22C 29/04 29/10 29/10 29/12 29/12 29/14 29/14 Z 29/16 29/16 GH C23C 8/24 C23C 8/24 (72) Inventor Haruhiko Kiyo 580 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa Solid Square Toshiba Tungaloy Co., Ltd. F-term (reference) 3C046 FF02 FF10 FF13 FF16 FF25 FF35 HH06 4K018 AD15 BA08 BA11 DA11 FA24 KA15 4K028 AA02 AB04
Claims (8)
結体上に全膜厚１〜５０μｍの単層もしくは２層以上の
多層膜を被覆し、少なくとも１層が０．５〜１０μｍの
酸窒化アルミニウム層であることを特徴とする被覆cBN
含有焼結体切削工具A cBN-containing sintered body containing 25 to 99% by volume of cBN is coated with a single layer or a multilayer film having two or more layers having a total thickness of 1 to 50 μm, and at least one layer has a thickness of 0.5 to 10 μm CBN characterized by being an aluminum oxynitride layer
Containing sintered body cutting tool
が１原子％以上であるAl-O-N固溶体若しくはAlｘOｙNｚ
の組成を持つAl-N-O化合物もしくは両者の混合物である
ことを特徴とする特許請求の範囲1項記載の被覆cBN含有
焼結体切削工具2. The aluminum oxynitride layer according to claim 1, wherein the solid solution of N is 1 atomic% or more in an Al-ON solid solution or AlxOyNz.
The coated cBN-containing sintered body cutting tool according to claim 1, wherein the cutting tool is an Al-NO compound or a mixture of both.
以下のAlNを含有することを特徴とする請求項１、２項
記載の被覆cBN含有焼結体切削工具3. 50% by volume of the solid solution, compound and mixture.
The coated cBN-containing sintered compact cutting tool according to claim 1, comprising the following AlN.
体上に隣接して被覆されたことを特徴とする請求項１，
２、3項記載の被覆cBN含有焼結体切削工具4. The method according to claim 1, wherein the aluminum oxynitride layer is coated adjacently on the cBN-containing sintered body.
Cutting tool for coated sintered body containing coated cBN according to item 2 or 3.
くとも1種を０．１〜３０体積％含むことを特徴とする
請求項１、２、３、４項記載の被覆cBN含有焼結体切削
工具5. The coated cBN according to claim 1, wherein said cBN-containing sintered body contains at least one of AlN and Al-ON in an amount of 0.1 to 30% by volume. Containing sintered body cutting tool
なり、cBN含有焼結体とAl2O3膜の間に酸窒化アルミニウ
ム層を被覆したことを特徴とする請求項１、２、３、
４、５項のいずれかに記載した被覆cBN含有焼結体切削
工具6. An aluminum oxynitride layer between the cBN-containing sintered body and the Al 2 O 3 film, wherein the outermost layer comprises an Al 2 O 3 film having a thickness of 0.1 to 40 μm. 1, 2, 3,
4. A cutting tool for a sintered body containing coated cBN according to any one of items 4 and 5.
層以外の膜がAl2O3、TiCN、TiB2,AlN,TiC,TiN,TiCNO,(T
i，Al)Ｎ、(Ti，Al)ＣＮ、(Ti，Al)ＣＮＯからなる請求
項１、２、３、４、５、６項のいずれかに記載した被覆
cBN含有焼結体切削工具7. In the multilayer film, the film other than the aluminum oxynitride layer is made of Al 2 O 3 , TiCN, TiB 2 , AlN, TiC, TiN, TiCNO, (T
The coating according to any one of claims 1, 2, 3, 4, 5, and 6, comprising (i, Al) N, (Ti, Al) CN, and (Ti, Al) CNO.
cBN-containing sintered cutting tool
とAl2O3，TiCN，TiB2、AlN、TiC、TiN、TiCNO、(Ti，A
l)Ｎ、(Ti，Al)ＣＮ、(Ti，Al)ＣＮＯの少なくとも1種
が交互に積層された特許請求の範囲１、２、３、４、
５、６、７項記載の被覆cBN含有焼結体切削工具8. An aluminum oxynitride layer and Al 2 O 3 , TiCN, TiB 2 , AlN, TiC, TiN, TiCNO, (Ti, A
1) Claims 1, 2, 3, 4, wherein at least one of N, (Ti, Al) CN, and (Ti, Al) CNO are alternately laminated.
The coated cBN-containing sintered body cutting tool according to any one of claims 5, 6, and 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000102327A JP2001287104A (en) | 2000-04-04 | 2000-04-04 | COVERED cBN-CONTAINING SINTERED BODY CUTTING TOOL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000102327A JP2001287104A (en) | 2000-04-04 | 2000-04-04 | COVERED cBN-CONTAINING SINTERED BODY CUTTING TOOL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001287104A true JP2001287104A (en) | 2001-10-16 |
Family
ID=18616227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000102327A Pending JP2001287104A (en) | 2000-04-04 | 2000-04-04 | COVERED cBN-CONTAINING SINTERED BODY CUTTING TOOL |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001287104A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015182208A (en) * | 2014-03-26 | 2015-10-22 | 三菱マテリアル株式会社 | surface-coated cutting tool |
| CN110100046A (en) * | 2017-01-26 | 2019-08-06 | 瓦尔特公开股份有限公司 | Coated cutting tool |
| DE102021106674A1 (en) | 2021-03-18 | 2022-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | AlN-based hard material layer on bodies made of metal, hard metal, cermet or ceramic and method for their production |
-
2000
- 2000-04-04 JP JP2000102327A patent/JP2001287104A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015182208A (en) * | 2014-03-26 | 2015-10-22 | 三菱マテリアル株式会社 | surface-coated cutting tool |
| CN110100046A (en) * | 2017-01-26 | 2019-08-06 | 瓦尔特公开股份有限公司 | Coated cutting tool |
| DE102021106674A1 (en) | 2021-03-18 | 2022-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | AlN-based hard material layer on bodies made of metal, hard metal, cermet or ceramic and method for their production |
| WO2022195054A1 (en) | 2021-03-18 | 2022-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aln-based hard material layer on bodies of metal, hard metal, cermet or ceramics, and method for the production thereof |
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