JP3447034B2 - Surface coated cemented carbide indexable inserts - Google Patents
Surface coated cemented carbide indexable insertsInfo
- Publication number
- JP3447034B2 JP3447034B2 JP15009996A JP15009996A JP3447034B2 JP 3447034 B2 JP3447034 B2 JP 3447034B2 JP 15009996 A JP15009996 A JP 15009996A JP 15009996 A JP15009996 A JP 15009996A JP 3447034 B2 JP3447034 B2 JP 3447034B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- cemented carbide
- coating
- coated cemented
- cutting
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、耐欠損性、耐剥離性の
極めて優れる表面被覆超硬合金製スローアウェイインサ
ートに関するものである。
【０００２】
【従来の技術】Ｔｉ及びＡｌを主成分とした硬質皮膜を
超硬合金の表面に被覆させることに関しては、特公平４
ー５３６４２号など、従来のＴｉの窒化物、炭窒化物、
及び炭化物に対して、Ａｌを添加することにより、その
効果を確認した事例は数多くある。しかしながら、これ
らの確認事例は、従来の皮膜組成にＡｌを添加すること
による耐酸化性が向上するといった硬質皮膜そのものの
改善が行われたにすぎない。従って、表面被覆超硬合金
製スローアウェイインサートにおいて、十分に皮膜の密
着性が得られていないのが現状である。特に最近におい
ては、熱処理後の高硬度鋼材を加工する傾向にあり、こ
の様な鋼材を従来のＴｉ及びＡｌを主成分とした表面被
覆超硬合金製スローアウェイインサートを用いて加工し
た場合、耐酸化性が不十分になること、また、切削応力
が高く容易に皮膜剥離が生じてしまい、十分な工具寿命
が得られない。
【０００３】
【発明が解決しようとする課題】本発明者らは、表面被
覆超硬合金製スローアウェイインサートにおける耐酸化
性、及び耐剥離性を改善すべく鋭意研究を重ねた結果、
次の知見を得た。最近の高硬度鋼材をスローアウェイイ
ンサートを用いて切削加工をした場合、インサート先端
部分は、７００℃〜８００℃の高温にさらされる。従来
のＴｉ及びＡｌを主成分とした超硬合金製スローアウェ
イインサートに被覆した場合、鋼と皮膜との摩擦抵抗が
大きく、切削加工中におけるインサート先端部分は、更
に高温にさらされ、８５０℃〜９００℃にまで達する。
よって、この様な表面被覆超硬合金製スローアウェイイ
ンサートにおいては、皮膜自身の耐酸性の限界を超えて
しまい、例えば、ＴｉＯ2等といった非常にポーラスな
酸化膜が形成される。また、この様な切削温度の場合、
皮膜の酸化だけでは免れず、超硬合金基体にまで酸化が
及んでしまう。その結果、皮膜、基体ともに脆弱なもの
となり、欠損や剥離を生じ不十分な工具寿命となるので
ある。また、切削加工中、表面被覆スローアウェイイン
サートに付与される切削応力は、非常に高いために皮膜
が剥離し、やはり不十分な工具寿命となるのである。上
記のように、高硬度鋼材を十分な工具寿命で切削加工を
行うためには、皮膜の耐酸化性、及び密着性を向上させ
ることが工具寿命を著しく改善させるのである。
【０００４】
【課題を解決するための手段】そのため、本発明者ら
は、ＴｉとＡｌの複合窒化物、炭窒化物、炭化物を被覆
したスローアウェイインサートにおいて、Ａｌの一部を
Ａｌに対して０．０３原子％以上３０．０原子％以下の
範囲でＣｒ、Ｃｅ、Ｍｏ、Ｎｄのうち１種もしくは、２
種以上に置き換え、その皮膜のＸ線回折における（１１
１）面の回折強度をＩａ（１１１）、（２２０）面の回
折強度をＩｂ（２２０）とした時にＩｂ（２２０）／Ｉ
ａ（１１１）の値が１．０＜Ｉｂ／Ｉａ≦５．０の範囲
とすることにより、更にその皮膜のＸ線回折における
（１１１）面の回折強度をＩａ（１１１）、（２００）
面の回折強度をＩｃ（２００）とした時にＩｃ（２０
０）／Ｉａ（１１１）の値が２．０≦Ｉｃ／Ｉａ≦４
０．０、且つ、Ｉｂ／Ｉａ＜Ｉｃ／Ｉａの範囲とするこ
とにより耐酸化性及び超硬合金基体との密着性が向上す
ることを見い出した。
【０００５】
【作用】第１に、これらの成分の添加により粒界破壊
は、著しく減少する。例えば、添加成分をＸとした場
合、皮膜が大気中の高温にさらされると従来のＴｉとＡ
ｌを主成分とした皮膜の場合、ＴｉＯ2と言ったような
非常にポーラスな酸化膜が形成されてしまったが、添加
成分Ｘを加えることにより、（Ｔｉ，Ｘ）Ｏ2といった
緻密な酸化膜が形成され、外部の酸化が皮膜中に拡散す
る量が著しく減少することを見い出した。この添加成分
の添加量を限定した理由について述べる。添加成分Ｘが
いずれのものであっても、Ａｌに対し０．０３原子％未
満である場合、粒界破壊を減少させる効果は認められな
かった。また、切削加工中に形成される酸化膜もＴｉＯ
2及びＸＯ2が主体の非常にポーラスな酸化膜を形成し、
本発明者らが目的とする効果が認められなかった。ま
た、添加成分ＸがＡｌに対し、３０．０原子％より多く
添加されると皮膜の残留圧縮応力が、−８．０〜−１
０．０ＧＰａと非常に大きくなり、超硬合金基体との密
着性が著しく劣化することを確認した。更に、本発明者
らが発明した、ＴｉとＡｌ及びＡｌの一部をＡｌに対し
て、０．０３原子％以上３０．０原子％以上の範囲でＣ
ｒ、Ｃｅ、Ｍｏ、Ｎｄのうち、１種もしくは２種以上に
置き換えた。窒化物、炭窒化物及び炭化物の皮膜と比較
して熱膨張率が、１．５倍以上になることが認められ、
皮膜の高温物性を低下させるため、この範囲に限定した
のである。
【０００６】本発明者らは、更に皮膜中に特定元素を分
散させるとともに、皮膜のＸ線回折において皮膜の（１
１１）、（２００）、（２２０）面の回折強度Ｉが、Ｉ
（１１１）＜Ｉ（２２０）≦Ｉ（２００）となること
で、皮膜の耐酸化性及び皮膜と超硬合金基体との密着性
が大幅に改善できることを見い出したのである。Ｔｉ、
Ａｌ及びＡｌの一部を他元素にて置換した複合窒化物、
炭窒化物、炭化物のうち、（１１１）面に強い配向を示
す皮膜は、非常に微細な柱状晶の構造をとる。また、皮
膜内部の残留応力も非常に大きいため、粒界破壊を生じ
る。この様に微細な柱状晶を持つ皮膜は、その粒界に生
じた微細なクラックに沿って酸素が侵入する。切削加工
中では工具自身が、８５０℃〜９００℃もの高温にさら
されるため皮膜内に浸入してきた酸素の拡散エネルギー
が更に大きくなり、皮膜中の成分との酸化反応が促進さ
れ、ついには、超硬合金基体にまで酸化が及んでしまう
のである。また、この様な皮膜は、被加工物との衝撃に
より皮膜中にクラックが伝播し易く、用意に欠損や剥離
に至ってしまう。
【０００７】本発明者らは、第２に皮膜のＸ線回折にお
ける（１１１）面と（２２０）面の回折強度をそれぞれ
Ｉａ（１１１）、Ｉｂ（２２０）とした場合、Ｉｂ（２
２０）／Ｉａ（１１１）の値が、１．０＜Ｉｂ（２２
０）／Ｉａ（１１１）≦５．０の範囲で皮膜の結晶粒径
が大きくなることを見い出したのである。また、皮膜の
結晶粒径が大きくなることで、粒界破壊が減少し、この
現象が密着性及び耐酸化性に大きく影響を及ぼすことを
見い出した。この数値を限定したのは、Ｉｂ／Ｉａ≦
１．０、Ｉｂ／Ｉａ＞５．０であると微細な粒界破壊を
多く持つ（１１１）面に強く配向する皮膜となり、結晶
状態に変化が見られず、残留応力が−６．０ＧＰａ〜−
８．０ＧＰａと非常に大きくなり、切削加工を行っても
効果が見られなかったため上記範囲に限定した。
【０００８】第３に皮膜のＸ線回折における（１１１）
面と（２００）面の回折強度をそれぞれ、Ｉａ（１１
１）、Ｉｃ（２００）とした場合、Ｉｃ（２００）／Ｉ
ａ（１１１）の値が２．０≦Ｉｃ／Ｉａ≦４０．０の範
囲で皮膜の粒界破壊の減少が認められ、前述同様大きな
影響を及ぼすことを見い出した。この数値に限定したの
は、前述同様Ｉｃ／Ｉａ＞２．０、Ｉｃ／Ｉａ＞４０．
０となる皮膜は、結晶に変化が見られないためである。
更に、皮膜のＸ線強度について、Ｉｂ／Ｉａ＜Ｉｃ／Ｉ
ａと限定した理由について述べる。Ｉａ（１１１）、Ｉ
ｂ（２２０）、Ｉｃ（２００）とした場合、Ｉｂ／Ｉａ
＞Ｉｃ／Ｉａとなると皮膜中の粒界破壊が増加し、微細
な柱状晶となってしまい、目的とする効果が得られなく
なるため、Ｉｂ／Ｉａ＞Ｉｃ／Ｉａとしたわけである。
以下、実施例に基づいて詳細に説明する。
【０００９】
【実施例】
実施例１
イオンプレーティング装置を用い、Ｔｉ、Ａｌ及び添加
元素を表１に示すようにＣｒ、Ｃｅ、Ｍｏ、Ｎｄのうち
１種もしくは２種以上添加して添加した複合窒化物、炭
窒化物、及び炭化物を所定の試験片に３μｍの厚さにな
るように被覆し、その試料を用いて大気中８００℃で１
時間保持し、形成された酸化層の厚さを測定した。その
結果も表１に併記する。
【００１０】
【表１】
【００１１】表１より、Ｔｉ、Ａｌ及びＡｌの一部をＡ
ｌに対して０．０３原子％以上３０．０原子％以下の範
囲で、Ｃｒ、Ｃｅ、Ｍｏ、Ｎｄのうち１種もしくは２種
以上に置き換えた複合窒化物、炭窒化物、及び炭化物の
うち、皮膜で、１．０＜Ｉｂ／Ｉａ≦５．０、２．０≦
Ｉｃ／Ｉａ≦４０．０、及びＩｂ／Ｉａ＜Ｉｃ／Ｉａと
したとき、酸化の進行状態は表面より１ミクロン未満し
か進まなかったのに対し、比較品では１．５〜２．５ミ
クロン前後まで進行し耐酸化性に優れることが確認でき
た。
【００１２】実施例２
実施例１で使用した皮膜をＳＥＥ４２ＴＮ（Ｇ９）型ス
ローアウェイインサートに３μｍの厚さになるよう被覆
した。また、この時の比較のため本発明品を作成した装
置を用いて、比較材も作成した。これらの試料を用いて
正面フライス盤を用いてフライス切削を切削速度１００
ｍ／ｍｉｎ、１刃当たりの送り量０．１ｍｍ／刃、切り
込み深さ２ｍｍ、被削材にＳＫＤ６１（ＨＲＣ４５）
材、１２５ｍｍ巾、２５０ｍｍ長さを用い乾式で行い、
作成した表面被覆超硬合金製スローアウェイインサート
に剥離が発生するまでの切削可能距離を表１に併記す
る。
【００１３】表１より、本発明品の皮膜では、剥離が発
生するまでの切削距離を従来品の５倍以上の距離にのば
すことができたため、正常な摩耗で切削できるため膜本
来の耐摩耗性が発揮されるため長寿命化を計ることがで
きる。また、切削後のチップを実施例１と同様に観察し
たところ、初期に剥離を生じた従来品は酸化の進行も剥
離部分はより深く進んでいるのに対し、本発明品は一様
に進み安定した切削を行っていることが確認された。
【００１４】
【発明の効果】上記のごとく、本発明のスローアウェイ
インサートは、切削温度の上昇する高硬度鋼材の切削に
用いても皮膜の酸化が小さく、また高硬度鋼ゆえに生じ
る喰い付き時の衝撃による皮膜の剥離に対しても十分な
密着性を有しているため、著しく優れた工具寿命が得ら
れる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface-coated cemented carbide indexable insert having extremely excellent fracture resistance and peeling resistance. 2. Description of the Related Art Japanese Patent Application Laid-Open Publication No. Hei.
No. 53642 and other conventional Ti nitrides, carbonitrides,
There are many cases in which the effect of adding Al to carbides and carbides has been confirmed. However, these confirmed examples merely improve the hard coating itself such that the oxidation resistance is improved by adding Al to the conventional coating composition. Therefore, in the present situation, in the throw-away insert made of a surface-coated cemented carbide, sufficient adhesion of the film has not been obtained. Particularly in recent years, there is a tendency to process hardened steel materials after heat treatment. When such steel materials are processed using a conventional surface-coated cemented carbide indexable insert mainly composed of Ti and Al, acid-resistant steel is not used. Insufficiency in the formability, high cutting stress, and easy peeling of the film, failing to provide a sufficient tool life. [0003] The inventors of the present invention have conducted intensive studies to improve the oxidation resistance and the peeling resistance of a surface-coated cemented carbide indexable insert.
The following findings were obtained. When cutting a recent high-hardness steel material using a throw-away insert, the tip of the insert is exposed to a high temperature of 700 ° C to 800 ° C. When coated on conventional indexable inserts made of cemented carbide containing Ti and Al as main components, the frictional resistance between the steel and the coating is large, and the tip of the insert during cutting is further exposed to a high temperature. Up to 900 ° C.
Therefore, in such a surface-coated cemented carbide indexable insert, the acid resistance limit of the film itself is exceeded, and a very porous oxide film such as TiO 2 is formed. Also, at such a cutting temperature,
Oxidation of the coating alone is inevitable, and oxidation extends to the cemented carbide substrate. As a result, both the coating and the substrate become brittle, resulting in chipping and peeling, resulting in an insufficient tool life. In addition, during the cutting process, the cutting stress applied to the surface-coated indexable insert is extremely high, so that the coating peels off, resulting in an insufficient tool life. As described above, in order to cut a high-hardness steel material with a sufficient tool life, improving the oxidation resistance and adhesion of the coating significantly improves the tool life. [0004] Therefore, the present inventors, in a throw-away insert coated with a composite nitride, carbonitride, and carbide of Ti and Al, a part of Al to Al One or more of Cr, Ce, Mo, and Nd in the range of 0.03 to 30.0 atomic%;
Of the film, and (11)
When the diffraction intensity of the 1) plane is Ia (111) and the diffraction intensity of the (220) plane is Ib (220), Ib (220) / I
By setting the value of a (111) in the range of 1.0 <Ib / Ia ≦ 5.0, the diffraction intensity of the (111) plane in X-ray diffraction of the film is further reduced to Ia (111) and (200).
When the diffraction intensity of the surface is Ic (200), Ic (20)
0) / Ia (111) is 2.0 ≦ Ic / Ia ≦ 4
It has been found that oxidation resistance and adhesion to a cemented carbide substrate are improved by setting the range of 0.0 and Ib / Ia <Ic / Ia. First, intergranular fracture is significantly reduced by the addition of these components. For example, if the additive component is X, the conventional Ti and A
In the case of a film containing l as a main component, a very porous oxide film such as TiO 2 was formed. However, by adding the additive component X, a dense oxide such as (Ti, X) O 2 was formed. It has been found that a film is formed and the amount of external oxidation that diffuses into the film is significantly reduced. The reason for limiting the amount of the additional component will be described. Regardless of the additive component X, when the content was less than 0.03 atomic% with respect to Al, the effect of reducing grain boundary fracture was not recognized. Also, the oxide film formed during the cutting process is made of TiO.
2 and XO 2 form a very porous oxide film mainly composed of
The effect intended by the present inventors was not recognized. Further, when the additive component X is added in an amount of more than 30.0 atomic% with respect to Al, the residual compressive stress of the film becomes -8.0 to -1.
It was as large as 0.0 GPa, and it was confirmed that the adhesion to the cemented carbide substrate was significantly deteriorated. Further, the inventors invented Ti, Al and a part of Al with respect to Al in a range of 0.03 atomic% or more and 30.0 atomic% or more.
One, two or more of r, Ce, Mo, and Nd were replaced. It is recognized that the coefficient of thermal expansion becomes 1.5 times or more as compared with nitride, carbonitride and carbide films,
In order to reduce the high-temperature properties of the coating, the range was limited to this range. [0006] The present inventors further disperse a specific element in the film and determine the (1) of the film by X-ray diffraction.
11), the diffraction intensity I of the (200) and (220) planes is I
It has been found that when (111) <I (220) ≦ I (200), the oxidation resistance of the coating and the adhesion between the coating and the cemented carbide substrate can be significantly improved. Ti,
Al and a composite nitride obtained by substituting a part of Al with another element,
Among the carbonitrides and carbides, the films showing a strong orientation on the (111) plane have a very fine columnar structure. In addition, since the residual stress inside the film is very large, grain boundary fracture occurs. In a film having such fine columnar crystals, oxygen penetrates along fine cracks generated at the grain boundaries. During the cutting process, the tool itself is exposed to a high temperature of 850 ° C. to 900 ° C., so that the diffusion energy of oxygen that has penetrated into the film is further increased, and the oxidation reaction with the components in the film is accelerated. Oxidation extends to the hard alloy substrate. In such a film, cracks are easily propagated in the film due to impact with the workpiece, and the film easily breaks or peels. Second, the present inventors assume that when the diffraction intensities of the (111) plane and the (220) plane in the X-ray diffraction of the film are Ia (111) and Ib (220), respectively, Ib (2)
20) / Ia (111) is 1.0 <Ib (22
0) / Ia (111) ≦ 5.0, it was found that the crystal grain size of the film became large. In addition, it has been found that as the crystal grain size of the coating increases, grain boundary destruction decreases, and that this phenomenon greatly affects adhesion and oxidation resistance. The reason for limiting this value is that Ib / Ia ≦
When 1.0 and Ib / Ia> 5.0, the film becomes strongly oriented on the (111) plane having many fine grain boundary fractures, the crystal state is not changed, and the residual stress is −6.0 GPa or more. −
It was extremely large at 8.0 GPa, and no effect was observed even when cutting was performed. Third, (111) in X-ray diffraction of the film
The diffraction intensities of the plane and the (200) plane are respectively Ia (11)
1) If Ic (200), Ic (200) / I
When the value of a (111) was in the range of 2.0 ≦ Ic / Ia ≦ 40.0, a decrease in the intergranular fracture of the coating was observed, and it was found that the coating had a large effect as described above. The values are limited to Ic / Ia> 2.0 and Ic / Ia> 40.
This is because a film having a value of 0 has no change in the crystal.
Further, regarding the X-ray intensity of the film, Ib / Ia <Ic / I
The reason for limiting to a will be described. Ia (111), I
b (220) and Ic (200), Ib / Ia
If> Ic / Ia, grain boundary destruction in the film increases, resulting in fine columnar crystals, and the desired effect cannot be obtained. Therefore, Ib / Ia> Ic / Ia.
Hereinafter, the present invention will be described in detail based on embodiments. Example 1 Using an ion plating apparatus, Ti, Al and additional elements were added by adding one or more of Cr, Ce, Mo, and Nd as shown in Table 1. A predetermined test piece is coated with a composite nitride, carbonitride, and carbide to a thickness of 3 μm, and the sample is used in air at 800 ° C. for 1 hour.
After holding for a time, the thickness of the formed oxide layer was measured. The results are also shown in Table 1. [Table 1] According to Table 1, Ti, Al and a part of Al
In the range of 0.03 atomic% to 30.0 atomic% with respect to 1, one of composite nitrides, carbonitrides, and carbides replaced with one or more of Cr, Ce, Mo, and Nd 1.0 <Ib / Ia ≦ 5.0, 2.0 ≦
When Ic / Ia ≦ 40.0 and Ib / Ia <Ic / Ia, the oxidation progressed less than 1 μm from the surface, whereas the comparative product was about 1.5 to 2.5 μm. It was confirmed that the process proceeded until the oxidation resistance was excellent. Example 2 The coating used in Example 1 was coated on a SEE42TN (G9) type throw-away insert to a thickness of 3 μm. In addition, for comparison at this time, a comparative material was also prepared by using the apparatus for preparing the product of the present invention. Using these samples, milling was performed using a face milling machine at a cutting speed of 100.
m / min, feed rate per blade 0.1 mm / blade, depth of cut 2 mm, SKD61 (HRC45) for work material
Wood, 125mm width, 250mm length using dry process,
Table 1 also shows the cuttable distance until peeling occurs in the prepared surface-coated cemented carbide indexable insert. From Table 1, it can be seen that the coating of the present invention can be cut with normal wear because the cutting distance before peeling can be extended to more than five times that of the conventional product. Because of this, the service life can be extended. In addition, when the chip after cutting was observed in the same manner as in Example 1, the oxidation of the conventional product in which the peeling occurred in the initial stage progressed deeper in the peeled portion, whereas the product of the present invention progressed uniformly. It was confirmed that stable cutting was performed. As described above, the indexable insert of the present invention has low oxidation of the film even when used for cutting high-hardness steel materials in which the cutting temperature rises, and has a small bite caused by high hardness steel. Since it has sufficient adhesion to peeling of the film due to impact, remarkably excellent tool life can be obtained.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 久保田 和幸 千葉県成田市新泉13番地の２ 日立ツー ル株式会社 成田工場内 (72)発明者 島 順彦 千葉県成田市新泉13番地の２ 日立ツー ル株式会社 成田工場内 (56)参考文献 特開 平７−237010（ＪＰ，Ａ) 特開 平２−30406（ＪＰ，Ａ) 特開 平４−103754（ＪＰ，Ａ) 特開 平６−210502（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazuyuki Kubota 13 Hitachi2, Shinsen, Narita City, Chiba Prefecture Le Narita Plant (72) Inventor Nobuhiko Shima 13 Hitachi2, Shinsen, Narita City, Chiba Prefecture Le Narita Plant (56) References JP-A-7-237010 (JP, A) JP-A-2-30406 (JP, A) JP-A-4-103754 (JP, A) JP-A-6-210502 (JP, A)
Claims (1)
化物を被覆したスローアウェイインサートにおいて、Ａ
ｌの一部をＡｌに対して０．０３原子％以上３０．０原
子％以下の範囲でＣｒ、Ｃｅ、Ｍｏ、Ｎｄのうち１種も
しくは、２種以上に置き換え、その皮膜のＸ線回折にお
ける（１１１）面の回折強度をＩａ（１１１）、（２２
０）面の回折強度をＩｂ（２２０）、（２００）面の回
折強度をＩｃ（２００）とした時にＩｂ（２２０）／Ｉ
ａ（１１１）の値が１．０＜Ｉｂ／Ｉａ≦５．０の範囲
とし、Ｉｃ（２００）／Ｉａ（１１１）の値が２．０≦
Ｉｃ／Ｉａ≦４０．０の範囲とし、且つ、Ｉｂ／Ｉａ＜
Ｉｃ／Ｉａの範囲としたことを特徴とする表面被覆超硬
合金製スローアウェイインサート。(57) [Claim 1] In a throw-away insert coated with a composite nitride, carbonitride or carbide of Ti and Al,
1 is replaced by one or more of Cr, Ce, Mo, and Nd in the range of 0.03 atomic% or more and 30.0 atomic% or less with respect to Al. The diffraction intensity of the (111) plane is Ia (111), (22)
The diffraction intensity of the (0) plane is calculated by using the Ib (220) and (200) planes.
Ib (220) / I when the fold strength is Ic (200)
The value of a (111) is in the range of 1.0 <Ib / Ia ≦ 5.0, and the value of Ic (200) / Ia (111) is 2.0 ≦
Ic / Ia ≦ 40.0, and Ib / Ia <
A throw-away insert made of a surface-coated cemented carbide, characterized in the range of Ic / Ia .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15009996A JP3447034B2 (en) | 1996-05-21 | 1996-05-21 | Surface coated cemented carbide indexable inserts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15009996A JP3447034B2 (en) | 1996-05-21 | 1996-05-21 | Surface coated cemented carbide indexable inserts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09300105A JPH09300105A (en) | 1997-11-25 |
| JP3447034B2 true JP3447034B2 (en) | 2003-09-16 |
Family
ID=15489495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15009996A Expired - Lifetime JP3447034B2 (en) | 1996-05-21 | 1996-05-21 | Surface coated cemented carbide indexable inserts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3447034B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702997B1 (en) | 2000-12-28 | 2013-11-20 | Kabushiki Kaisha Kobe Seiko Sho | Process for forming a hard film for cutting tools |
| ATE322562T1 (en) * | 2001-11-28 | 2006-04-15 | Metaplas Ionon Gmbh | COMPONENTS COVERED WITH HARD LAYERS |
| DE10212383A1 (en) * | 2002-03-20 | 2003-10-16 | Guehring Joerg | Anti-wear layer for rotating machining tools consists of nitrides containing chromium, titanium and aluminum and preferably a small amount of elements for grain refining |
| US7947363B2 (en) * | 2007-12-14 | 2011-05-24 | Kennametal Inc. | Coated article with nanolayered coating scheme |
| JP5098657B2 (en) * | 2008-01-18 | 2012-12-12 | 日立ツール株式会社 | Hard coating coated member |
| EP2561118B1 (en) * | 2010-04-23 | 2015-04-15 | Seco Tools AB | Pvd coating for metal machining |
| JP6635347B2 (en) * | 2017-06-27 | 2020-01-22 | 株式会社タンガロイ | Coated cutting tool |
-
1996
- 1996-05-21 JP JP15009996A patent/JP3447034B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09300105A (en) | 1997-11-25 |
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