JPH04300104A - Surface-coated cutting tool - Google Patents
Surface-coated cutting toolInfo
- Publication number
- JPH04300104A JPH04300104A JP8973491A JP8973491A JPH04300104A JP H04300104 A JPH04300104 A JP H04300104A JP 8973491 A JP8973491 A JP 8973491A JP 8973491 A JP8973491 A JP 8973491A JP H04300104 A JPH04300104 A JP H04300104A
- Authority
- JP
- Japan
- Prior art keywords
- coated
- group
- hard layer
- residual stress
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 29
- 239000011247 coating layer Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011195 cermet Substances 0.000 claims abstract description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 150000002739 metals Chemical group 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 claims abstract description 4
- 229910007277 Si3 N4 Inorganic materials 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract description 7
- 238000005488 sandblasting Methods 0.000 abstract description 2
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- -1 oxide Chemical compound 0.000 abstract 1
- 230000035882 stress Effects 0.000 description 25
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005480 shot peening Methods 0.000 description 3
- 229910018404 Al2 O3 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
【産業上の利用分野】この発明は、ＷＣ基超硬合金、Ｔ
ｉ（ＣＮ）基サーメット、Ｓｉ３ Ｎ４ 系セラミック
ス、Ａｌ２ Ｏ３系セラミックスのいずれか１種を基体
とし、その表面に硬質層を被覆した切削工具に関するも
のであり、特に、被覆層と被覆層並びに被覆層と基体と
の付着力が高く、耐摩耗性に優れた表面被覆切削工具に
関するものである。[Industrial Application Field] This invention relates to WC-based cemented carbide, T
The present invention relates to a cutting tool having a substrate made of any one of i(CN)-based cermet, Si3 N4-based ceramics, and Al2 O3-based ceramics, and whose surface is coated with a hard layer. This invention relates to a surface-coated cutting tool that has high adhesion to a substrate and has excellent wear resistance.
【０００２】0002
【従来の技術】従来、ＷＣ基超硬合金を基体とし、その
表面に化学蒸着法で硬質層を被覆した切削工具が広く使
用されており、一般に化学蒸着法で被覆した硬質層は、
基体との熱膨張係数の関係より、コーティング後には熱
応力に起因する引張り残留応力が作用していることおよ
びそれによって耐欠損性が低下していることも知られて
いる。[Prior Art] Cutting tools that have a WC-based cemented carbide as a base and have a hard layer coated on the surface by chemical vapor deposition have been widely used.Generally, the hard layer coated by chemical vapor deposition is
It is also known that tensile residual stress due to thermal stress acts after coating due to the relationship of the coefficient of thermal expansion with the substrate, and that this reduces chipping resistance.
【０００３】例えば、「日本金属学会誌 第５０巻
第３号（１９８６）３２０−３２７」には、ＷＣ基超
硬合金上に化学蒸着法（以下、ＣＶＤ法という）で被覆
したＴｉＮの残留応力について研究が報告されており、
この文献によるとＣＶＤ法で形成されたＴｉＮ層は、引
張り残留応力が作用しているとされている。かかる引張
り残留応力が作用している硬質層は亀裂が入りやすく、
耐欠損性が劣るために特開昭６４−３１９７２号公報に
は、ＣＶＤ法による被覆焼結合金の表面にできるだけ強
い衝撃力を付与することにより、被覆層に５０ｋｇ／ｍ
ｍ２ 以上の圧縮応力を付与して強度及び耐欠損性を高
めた被覆焼結合金が開示されている。For example, “Journal of the Japan Institute of Metals Vol. 50
No. 3 (1986) 320-327, a study was reported on the residual stress of TiN coated on WC-based cemented carbide by chemical vapor deposition (hereinafter referred to as CVD).
According to this document, tensile residual stress acts on the TiN layer formed by the CVD method. The hard layer under such tensile residual stress is prone to cracking.
Because of the poor fracture resistance, Japanese Patent Application Laid-Open No. 64-31972 proposes applying an impact force of 50 kg/m to the coating layer by applying as strong an impact force as possible to the surface of the coated sintered alloy using the CVD method.
A coated sintered alloy with improved strength and fracture resistance by applying a compressive stress of m2 or more is disclosed.
【０００４】0004
【発明が解決しようとする課題】しかし、上記従来のＣ
ＶＤ法による高い引張り残留応力を有する被覆焼結合金
や、さらに、被覆後に表面から強い衝撃力を加えて高い
圧縮残留応力を付与した被覆焼結合金で作製した切削工
具を、刃先に切削応力が集中する微小切削、仕上げ切削
などに使用すると、被覆層を構成している結晶粒子の脱
落による異常摩耗が生じ易く、この切削工具の寿命は短
いものとなっていた。[Problem to be solved by the invention] However, the above conventional C
Cutting tools made with coated sintered alloys that have high tensile residual stress using the VD method, or coated sintered alloys that have been coated with high compressive residual stress by applying a strong impact force from the surface after coating, are designed to have cutting stress on the cutting edge. When used for concentrated micro-cutting, finishing cutting, etc., abnormal wear is likely to occur due to shedding of crystal particles constituting the coating layer, and the life of this cutting tool is short.
【０００５】[0005]
【課題を解決するための手段】そこで本発明者らは、か
かる課題を解決すべく種々検討した結果、被覆層の圧縮
残留応力は確かに耐欠損性の向上にはつながるものの、
高い圧縮残留応力や高い引張り残留応力は、被覆層を構
成している結晶粒子の脱落による異常摩耗を発生させ、
さらには被覆層と被覆層、あるいは被覆層と基体の付着
力を低下させており、残留応力のほとんど発生していな
い硬質層を被覆すれば、その被覆層の結晶粒子の脱落が
生じにくく、高い付着力が得られるとの知見を得たので
ある。[Means for Solving the Problems] The present inventors have conducted various studies to solve the problems, and have found that although compressive residual stress in the coating layer does lead to improved fracture resistance,
High compressive residual stress and high tensile residual stress cause abnormal wear due to shedding of crystal grains that make up the coating layer.
Furthermore, the adhesion between the coating layer and the coating layer or between the coating layer and the substrate is reduced, and if a hard layer is coated with almost no residual stress, the crystal grains of the coating layer will be less likely to fall off, and the They found that adhesive strength could be obtained.
【０００６】この発明は、かかる知見に基づいて成され
たものであって、ＷＣ基超硬合金、Ｔｉ（ＣＮ）基サー
メット、Ｓｉ３ Ｎ４ 基セラミックス、及びＡｌ２
Ｏ３ 基セラミックスのいずれか１種を基体とし、その
表面に周期律表の４ａ，５ａおよび６ａ族金属、Ａｌ，
Ｓｉの群から選んだ１種または２種以上の金属元素と、
炭素、窒素、酸素およびほう素からなる群より選んだ１
種または２種以上の非金属元素の化合物の１種の単層ま
たは２種以上の多重層で構成された硬質層を被覆してな
る切削工具において、被覆層の引張り残留応力あるいは
圧縮残留応力が９ｋｇｆ／ｍｍ２ 以下である硬質層が
少なくとも１層被覆されている表面被覆切削工具に特徴
を有するものである。さらに、この発明の表面被覆切削
工具は、全ての被覆層の引張り残留応力あるいは圧縮残
留応力が９ｋｇｆ／ｍｍ２ 以下であることが一層好ま
しい。[0006] The present invention was made based on this knowledge, and includes WC-based cemented carbide, Ti(CN)-based cermet, Si3 N4-based ceramics, and Al2-based cemented carbide.
The base is made of any one of O3-based ceramics, and the surface is coated with metals from groups 4a, 5a and 6a of the periodic table, Al,
One or more metal elements selected from the group of Si,
1 selected from the group consisting of carbon, nitrogen, oxygen and boron
In a cutting tool coated with a hard layer composed of one kind of single layer or two or more kinds of multilayers of a species or a compound of two or more nonmetallic elements, the tensile residual stress or compressive residual stress of the coating layer is The present invention is characterized by a surface-coated cutting tool coated with at least one hard layer having a hardness of 9 kgf/mm2 or less. Furthermore, in the surface-coated cutting tool of the present invention, it is more preferable that all the coating layers have a tensile residual stress or a compressive residual stress of 9 kgf/mm 2 or less.
【０００７】この発明のＣＶＤ法による硬質層の引張り
残留応力あるいは圧縮残留応力を９ｋｇｆ／ｍｍ２ 以
下にする方法として、硬質層被覆後表面から、サンドブ
ラスト法又はショットピーニング法を施す機械的処理方
法や表面にイオン照射を施す物理的処理方法等がある。[0007] As a method of reducing the tensile residual stress or compressive residual stress of the hard layer by the CVD method of the present invention to 9 kgf/mm2 or less, a mechanical treatment method or a surface treatment method in which sandblasting or shot peening is applied to the surface after the hard layer is coated. There are physical treatment methods such as ion irradiation.
【０００８】[0008]
【実施例】実施例１
市販のＩＳＯ規格Ｍ２０相当のＷＣ基超硬合金製切削工
具（形状：ＳＮＭＧ１２０４０８）を基体とし、この基
体の表面に通常のＣＶＤ法で表１に示す単層または２種
以上の多重硬質層の被覆を行った後、上記単層または２
種以上の多重硬質層の各層のそれぞれの表面に平均粒径
０．２ｍｍのアルミナ製ボールを約５．０ｋｇ／ｃｍ２
の圧縮空気で所定時間衝突させるショットピーニング
を施し、表１〜４に示される残留応力を付与することに
より本発明表面被覆切削工具１〜５及び比較表面被覆切
削工具１〜５（ただし、比較表面被覆切削工具１〜２は
、ショットピーニングを施さず）を製造した。なお、上
記残留応力は、Ｘ線回折により２θ−Ｓｉｎ２ Ψ法を
用いて測定し、測定した各層の残留応力を表１〜４に示
した。[Example] Example 1 A commercially available WC-based cemented carbide cutting tool (shape: SNMG120408) equivalent to ISO standard M20 was used as a base, and a single layer or two types shown in Table 1 were coated on the surface of this base using a normal CVD method. After coating the above multiple hard layers, the single layer or two layers described above are applied.
Approximately 5.0 kg/cm2 of alumina balls with an average particle size of 0.2 mm are placed on the surface of each layer of the multi-layered hard layer.
The surface-coated cutting tools 1-5 of the present invention and the comparative surface-coated cutting tools 1-5 (however, the surface-coated cutting tools 1-5 of the present invention and the comparative surface-coated cutting tools 1-5 were Coated cutting tools 1 and 2 were manufactured without shot peening. The residual stress was measured by X-ray diffraction using the 2θ-Sin2Ψ method, and the measured residual stress of each layer is shown in Tables 1 to 4.
【０００９】これら本発明表面被覆切削工具１〜５及び
比較表面被覆切削工具１〜５を用いて、下記の条件で切
削テストを行ない、それらの結果を表５に示した。
（切削テスト１）
被削材：ＳＣＭ４４０（ＨＢ ２５０）、切削速度：２
００ｍ／分、
送り：０．０５ｍｍ／ｒｅｖ、
切込み：０．３ｍｍ、
乾式、
の微小切削を行ない、逃げ面摩耗幅が０．４ｍｍに達す
るまでの時間を測定。（切削テスト２）被削材：ＦＣ３
０（ＨＢ １６０）、
切削速度：２５０ｍ／分、
送り：０．１ｍｍ／ｒｅｖ、
切込み：０．５ｍｍ、
乾式、
の仕上げ切削を行ない、逃げ面摩耗幅が０．４ｍｍに達
するまでの時間を測定。Using these surface-coated cutting tools 1 to 5 of the present invention and comparative surface-coated cutting tools 1 to 5, cutting tests were conducted under the following conditions, and the results are shown in Table 5. (Cutting test 1) Work material: SCM440 (HB 250), cutting speed: 2
00m/min, Feed: 0.05mm/rev, Depth of Cut: 0.3mm, dry, micro-cutting was performed, and the time until the flank wear width reached 0.4mm was measured. (Cutting test 2) Work material: FC3
0 (HB 160), Cutting speed: 250 m/min, Feed: 0.1 mm/rev, Depth of cut: 0.5 mm, dry, finish cutting and measure the time until the flank wear width reaches 0.4 mm. .
【００１０】0010
【表１】 ☆印：本発明の範囲を越えている。[Table 1] ☆: Beyond the scope of the present invention.
【００１１】[0011]
【表２】 ☆印：本発明の範囲を越えている。[Table 2] ☆: Beyond the scope of the present invention.
【００１２】0012
【表３】[Table 3]
【００１３】[0013]
【表４】[Table 4]
【００１４】[0014]
【表５】[Table 5]
【００１５】実施例２
市販の工具形状：ＴＮＧＮ１６０４１２のＴｉＣＮ基サ
ーメット、Ｓｉ３ Ｎ４ 基セラミックス、及びＡｌ２
Ｏ３ 基セラミックスからなる各種工具材種を基体と
し、この基体の表面に通常のＣＶＤ法で表６〜７に示さ
れる多重硬質層の被覆を行った後、上記多重硬質層の各
層のそれぞれの表面に平均粒径０．２ｍｍのアルミナ製
ボールを約５．０ｋｇ／ｃｍ２ の圧縮空気で所定時間
衝突させるショットピーニングを施し、表６に示される
残留応力を付与することにより本発明表面被覆切削工具
６〜８及び比較表面被覆切削工具６〜８（ただし、比較
表面被覆切削工具１〜２は、ショットピーニングを施さ
ず）を製造した。なお、上記残留応力は、実施例１と同
様にＸ線回折により２θ−Ｓｉｎ２ Ψ法を用いて測定
し、測定した各層の残留応力を表６〜７に示した。Example 2 Commercially available tool shapes: TiCN-based cermet of TNGN160412, Si3 N4-based ceramics, and Al2
Using various tool materials made of O3-based ceramics as a base, the surface of this base is coated with multiple hard layers shown in Tables 6 to 7 by a normal CVD method, and then the respective surfaces of each layer of the multiple hard layers are coated. The surface-coated cutting tool 6 of the present invention was prepared by subjecting the surface-coated cutting tool 6 of the present invention to alumina balls having an average particle diameter of 0.2 mm and bombarding the surface with compressed air of approximately 5.0 kg/cm2 for a predetermined period of time to impart residual stresses shown in Table 6. - 8 and comparative surface-coated cutting tools 6-8 (however, comparative surface-coated cutting tools 1-2 were not subjected to shot peening). The residual stress was measured by X-ray diffraction using the 2θ-Sin2Ψ method in the same manner as in Example 1, and the measured residual stress of each layer is shown in Tables 6 and 7.
【００１６】これら本発明表面被覆切削工具６〜８及び
比較表面被覆切削工具６〜８を用いて、下記の条件で切
削テストを行ない、それらの結果を表８に示した。
（切削テスト３）
被削材：ＳＮＣＭ４３９ （ＨＢ ３１０）切削速度
：２３０ｍ／分
送り：０．０５ｍｍ／ｒｅｖ
切込み：０．３ｍｍ
乾式
の微小切削を行なった。逃げ面磨耗幅が０．２ｍｍに達
するまでの時間を測定。Using these surface-coated cutting tools 6 to 8 of the present invention and comparative surface-coated cutting tools 6 to 8, cutting tests were conducted under the following conditions, and the results are shown in Table 8. (Cutting test 3) Work material: SNCM439 (HB 310) Cutting speed: 230 m/min Feed: 0.05 mm/rev Depth of cut: 0.3 mm Dry micro-cutting was performed. Measure the time until the flank wear width reaches 0.2mm.
【００１７】[0017]
【表６】 ☆印：本発明の範囲を越えている。[Table 6] ☆: Beyond the scope of the present invention.
【００１８】[0018]
【表７】[Table 7]
【００１９】[0019]
【表８】[Table 8]
【００２０】[0020]
【発明の効果】上記実施例１および２の結果から明らか
なように、ＷＣ基超硬合金、Ｔｉ（ＣＮ）基サーメット
、Ｓｉ３ Ｎ４ 基セラミックス、及びＡｌ２ Ｏ３
基セラミックスのいずれか１種を基体とし、その表面に
周期律表の４ａ，５ａおよび６ａ族金属、Ａｌ，Ｓｉの
群から選んだ１種または２種以上の金属元素と、炭素、
窒素、酸素およびほう素からなる群より選んだ１種また
は２種以上の非金属元素の化合物の１種の単層または２
種以上の多重層で構成された硬質層を被覆してなる切削
工具において、被覆層の引張り残留応力あるいは圧縮残
留応力が９ｋｇｆ／ｍｍ２ 以下である硬質層が少なく
とも１層被覆されている表面被覆切削工具は、連続切削
、とくに微小連続切削における耐逃げ面摩耗性に優れて
いることが分かる。Effects of the Invention As is clear from the results of Examples 1 and 2 above, WC-based cemented carbide, Ti(CN)-based cermet, Si3 N4-based ceramics, and Al2 O3
Any one of the base ceramics is used as a base, and on the surface thereof, one or more metal elements selected from the group of group 4a, 5a and 6a metals of the periodic table, Al, and Si, carbon,
A single layer or two of a compound of one or more nonmetallic elements selected from the group consisting of nitrogen, oxygen, and boron.
In a cutting tool coated with a hard layer composed of multiple layers of different types, the surface-coated cutting tool is coated with at least one hard layer whose tensile residual stress or compressive residual stress of the coating layer is 9 kgf/mm2 or less. It can be seen that the tool has excellent flank wear resistance in continuous cutting, especially in micro-continuous cutting.
Claims (2)
メット、Ｓｉ３ Ｎ４ 基セラミックス、及びＡｌ２
Ｏ３ 基セラミックスのいずれか１種を基体とし、その
表面に周期律表の４ａ，５ａおよび６ａ族金属、Ａｌ，
Ｓｉの群から選んだ１種または２種以上の金属元素と、
炭素、窒素、酸素およびほう素からなる群より選んだ１
種または２種以上の非金属元素の化合物の１種の単層ま
たは２種以上の多重層で構成された硬質層を被覆してな
る切削工具において、被覆層の引張り残留応力あるいは
圧縮残留応力が９ｋｇｆ／ｍｍ２ 以下である硬質層が
少なくとも１層被覆されていることを特徴とする表面被
覆切削工具。[Claim 1] WC-based cemented carbide, Ti(CN)-based cermet, Si3 N4-based ceramics, and Al2
The base is made of any one of O3-based ceramics, and the surface is coated with metals from groups 4a, 5a and 6a of the periodic table, Al,
one or more metal elements selected from the group of Si;
1 selected from the group consisting of carbon, nitrogen, oxygen and boron
In a cutting tool coated with a hard layer composed of one type of single layer or two or more types of multilayers of a species or a compound of two or more nonmetallic elements, the tensile residual stress or compressive residual stress of the coating layer is A surface-coated cutting tool characterized by being coated with at least one hard layer having a hardness of 9 kgf/mm2 or less.
いて、全ての被覆層の引張り残留応力あるいは圧縮残留
応力が９ｋｇｆ／ｍｍ２ 以下であることを特徴とする
表面被覆切削工具。 【０００１】2. The surface-coated cutting tool according to claim 1, wherein the tensile residual stress or compressive residual stress of all the coating layers is 9 kgf/mm 2 or less. 0001
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8973491A JP2757581B2 (en) | 1991-03-28 | 1991-03-28 | Surface coated cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8973491A JP2757581B2 (en) | 1991-03-28 | 1991-03-28 | Surface coated cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04300104A true JPH04300104A (en) | 1992-10-23 |
| JP2757581B2 JP2757581B2 (en) | 1998-05-25 |
Family
ID=13978997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8973491A Expired - Lifetime JP2757581B2 (en) | 1991-03-28 | 1991-03-28 | Surface coated cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2757581B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167564A1 (en) * | 2000-06-23 | 2002-01-02 | Linde Gas Aktiengesellschaft | Cutting edge with a thermally sprayed coating and method for forming the coating |
| US6688817B2 (en) | 1999-02-11 | 2004-02-10 | Kennametal Inc. | Drill for drilling, a method for making a drill for drilling, and a cutting tool |
| WO2007082498A1 (en) * | 2006-01-17 | 2007-07-26 | Kennametal Widia Produktions Gmbh & Co. Kg | Method of coating a cemented carbide or cermet substrate body and coated cemented carbide or cermet body |
| JP2008105148A (en) * | 2006-10-26 | 2008-05-08 | Sumitomo Electric Hardmetal Corp | Cutting edge exchangeable cutting tip |
| WO2009051046A1 (en) | 2007-10-15 | 2009-04-23 | Sumitomo Electric Hardmetal Corp. | Edge replacement-type cutting chip |
| US7838132B2 (en) | 2004-09-10 | 2010-11-23 | Sandvik Intellectual Property Ab | PVD-coated cutting tool insert |
| US8318293B2 (en) | 2005-06-17 | 2012-11-27 | Sandvik Intellectual Property Ab | Coated cutting tool insert |
| WO2013099752A1 (en) * | 2011-12-26 | 2013-07-04 | 三菱マテリアル株式会社 | Surface-coated cutting tool with hard coating that exhibits excellent chipping resistance and abrasion resistance |
| WO2020067138A1 (en) | 2018-09-28 | 2020-04-02 | 三菱マテリアル株式会社 | Surface coated tin-based cermet cutting tool having hard coating layer exhibiting excellent chipping resistance |
-
1991
- 1991-03-28 JP JP8973491A patent/JP2757581B2/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688817B2 (en) | 1999-02-11 | 2004-02-10 | Kennametal Inc. | Drill for drilling, a method for making a drill for drilling, and a cutting tool |
| EP1167564A1 (en) * | 2000-06-23 | 2002-01-02 | Linde Gas Aktiengesellschaft | Cutting edge with a thermally sprayed coating and method for forming the coating |
| US7838132B2 (en) | 2004-09-10 | 2010-11-23 | Sandvik Intellectual Property Ab | PVD-coated cutting tool insert |
| US8318293B2 (en) | 2005-06-17 | 2012-11-27 | Sandvik Intellectual Property Ab | Coated cutting tool insert |
| WO2007082498A1 (en) * | 2006-01-17 | 2007-07-26 | Kennametal Widia Produktions Gmbh & Co. Kg | Method of coating a cemented carbide or cermet substrate body and coated cemented carbide or cermet body |
| JP2008105148A (en) * | 2006-10-26 | 2008-05-08 | Sumitomo Electric Hardmetal Corp | Cutting edge exchangeable cutting tip |
| WO2009051046A1 (en) | 2007-10-15 | 2009-04-23 | Sumitomo Electric Hardmetal Corp. | Edge replacement-type cutting chip |
| WO2013099752A1 (en) * | 2011-12-26 | 2013-07-04 | 三菱マテリアル株式会社 | Surface-coated cutting tool with hard coating that exhibits excellent chipping resistance and abrasion resistance |
| CN104023882A (en) * | 2011-12-26 | 2014-09-03 | 三菱综合材料株式会社 | Surface-coated cutting tool with hard coating that exhibits excellent chipping resistance and abrasion resistance |
| KR20140109857A (en) * | 2011-12-26 | 2014-09-16 | 미쓰비시 마테리알 가부시키가이샤 | Surface-coated cutting tool with hard coating that exhibits excellent chipping resistance and abrasion resistance |
| EP2799168A1 (en) | 2011-12-26 | 2014-11-05 | Mitsubishi Materials Corporation | Surface-coated cutting tool with hard coating that exhibits excellent chipping resistance and abrasion resistance |
| US9724762B2 (en) | 2011-12-26 | 2017-08-08 | Mitsubishi Materials Corporation | Surface-coated cutting tool with hard coating layer exhibiting excellent chipping resistance and wear resistance |
| WO2020067138A1 (en) | 2018-09-28 | 2020-04-02 | 三菱マテリアル株式会社 | Surface coated tin-based cermet cutting tool having hard coating layer exhibiting excellent chipping resistance |
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| Publication number | Publication date |
|---|---|
| JP2757581B2 (en) | 1998-05-25 |
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