JP3110890B2 - Coated cemented carbide - Google Patents
Coated cemented carbideInfo
- Publication number
- JP3110890B2 JP3110890B2 JP04259470A JP25947092A JP3110890B2 JP 3110890 B2 JP3110890 B2 JP 3110890B2 JP 04259470 A JP04259470 A JP 04259470A JP 25947092 A JP25947092 A JP 25947092A JP 3110890 B2 JP3110890 B2 JP 3110890B2
- Authority
- JP
- Japan
- Prior art keywords
- cemented carbide
- base material
- hard layer
- hard
- layer
- 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 - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
- Physical Vapour Deposition (AREA)
- Chemical Vapour Deposition (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、鋼や鋳鉄の切削に適
し、その表面に硬質層を形成した被覆超硬合金に関する
ものであり、詳細には、被覆層の超硬合金母材への付着
性の改善に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coated cemented carbide suitable for cutting steel or cast iron and having a hard layer formed on the surface thereof. It relates to improvement of adhesion.
【０００２】[0002]
【従来技術】従来、超硬合金は、切削工具に適した材料
として多用されているが、硬度が小さいことからこの超
硬合金の表面に硬質膜を形成することにより耐摩耗性を
向上させた、いわゆる被覆超硬合金が知られている。2. Description of the Related Art Conventionally, cemented carbides have been widely used as materials suitable for cutting tools. However, due to their low hardness, wear resistance has been improved by forming a hard film on the surface of the cemented carbide. A so-called coated cemented carbide is known.
【０００３】通常、超硬合金の表面に硬質層を形成する
場合には、通常、焼成された超硬合金の焼き肌面に直接
硬質層を形成したり、母材表面を加工した後に硬質層を
形成することが行われている。母材表面の加工方法とし
ては、例えば、ダイヤモンド、ＧＣ砥石によって研削加
工する方法や、バレル研磨する方法などが知られている
が、最近では、ダイヤモンド砥粒により鏡面仕上げ加工
した後に硬質層を形成することによりチップ間の摩耗量
のバラツキを低減する方法が特開昭６２−７４５０８号
に提案されている。また、硬質層の付着性を改善するた
めに、鏡面加工した後に所定の熱処理を行うことも特開
平４−６３６０４号に提案されている。[0003] Usually, when a hard layer is formed on the surface of a cemented carbide, the hard layer is usually formed directly on the surface of the baked cemented carbide, or after the surface of the base material is processed. Is being formed. As a method of processing the base material surface, for example, a method of grinding with a diamond or a GC grindstone, a method of barrel polishing, and the like are known. Recently, a hard layer is formed after a mirror finish processing with diamond abrasive grains. Japanese Patent Application Laid-Open No. Sho 62-74508 proposes a method for reducing the variation in the amount of wear between chips by doing so. Further, in order to improve the adhesion of the hard layer, it has been proposed in JP-A-4-63604 to carry out a predetermined heat treatment after mirror finishing.
【０００４】その他、母材表面を滑らかにする方法とし
ては、砥石の粒度、砥粒の粒度を細かくする方法もあ
る。[0004] In addition, as a method of smoothing the surface of the base material, there is a method of reducing the grain size of the grindstone and the grain size of the abrasive grains.
【０００５】[0005]
【発明が解決しようとする問題点】従来の方法におい
て、母材の焼き肌面に直接硬質層を形成する場合には、
超硬合金表面に焼結により不可避的に発生する脱炭層や
金属富化層などの異質層が存在し、しかも表面粗さが大
きいために母材の硬質層の付着性が低下し、切削時に膜
剥離を生じてしまうという問題があった。また、母材表
面を研削加工する方法では、異質層をある程度除去でき
るが、研削加工後に超硬合金表面に一方向に並んだ研磨
傷が残り、これにより母材と硬質層の付着強度に方向性
が発生し、応力の方向によって剥離することがあった。
また、母材表面を鏡面加工する方法によれば、母材と硬
質層との付着性が不十分であり、さらに熱処理する方法
では工程数が増えるための量産的でないなどの問題があ
った。SUMMARY OF THE INVENTION In the conventional method, when a hard layer is formed directly on the burnt surface of a base material,
There is a foreign layer such as a decarburized layer or a metal-enriched layer inevitably generated by sintering on the surface of the cemented carbide, and the large surface roughness reduces the adhesion of the hard layer of the base material. There was a problem that film peeling occurred. In addition, in the method of grinding the base material surface, a foreign layer can be removed to some extent, but after the grinding process, polishing scratches remain in one direction on the surface of the cemented carbide, thereby reducing the adhesion strength between the base material and the hard layer. , And peeled off depending on the direction of the stress.
Further, according to the method of mirror-finishing the surface of the base material, there is a problem that the adhesion between the base material and the hard layer is insufficient, and the method of heat treatment is not mass-produced due to an increase in the number of steps.
【０００６】[0006]
【問題点を解決するための手段】本発明者等は上記の問
題点について検討を重ねた結果、焼成後の超硬合金の表
面をその中心平均粗さＲａが０．１５〜０．４μｍとな
る程度に加工し、その後硬質層を形成することにより、
硬質層の母材との付着性が向上することを知見したもの
である。As a result of repeated studies on the above problems, the present inventors have found that the surface of the cemented carbide after firing has a center average roughness Ra of 0.15 to 0.4 μm. By processing to an extent, and then forming a hard layer,
It has been found that the adhesion of the hard layer to the base material is improved.
【０００７】本発明は、上記の知見に基づき、炭化タン
グステンを主成分とし、周期律表第４ａ、５ａ、６ａ族
金属の炭化物、窒化物、炭窒化物の群より選ばれる少な
くとも１種を含む硬質粒子と、鉄族金属を主とする結合
相からなる超硬合金母材の表面に、周期律表第４ａ、５
ａ族金属およびＡｌの炭化物、窒化物、炭窒化物、酸化
物から選ばれる少なくとも１種の単層もくしは複数層か
らなる硬質層を被覆してなる被覆超硬合金において、前
記超硬合金母材の少なくとも刃先を含む表面の平均表面
粗さＲａが０．１５〜０．４μｍであることを特徴とす
るものであり、特に母材の表面処理によってランダムな
方向に研磨傷が形成されていることが望ましい。[0007] Based on the above findings, the present invention contains tungsten carbide as a main component and contains at least one selected from the group consisting of carbides, nitrides and carbonitrides of metals of Groups 4a, 5a and 6a of the periodic table. The surface of a cemented carbide base material composed of hard particles and a binder phase mainly composed of an iron group metal is provided on the surface of the periodic table 4a, 5a
a coated cemented carbide obtained by coating at least one single layer or a plurality of hard layers selected from carbides, nitrides, carbonitrides, and oxides of Group a metals and Al; The surface of the base material including at least the cutting edge has an average surface roughness Ra of 0.15 to 0.4 μm. In particular, polishing scratches are formed in random directions by the surface treatment of the base material. Is desirable.
【０００８】以下、本発明を詳述する。本発明により用
いられる超硬合金母材は、従来から一般的に用いられる
超硬合金が採用され、具体的には炭化タングステンを主
成分として、さらにＴｉ、Ｚｒ、Ｈｆ、Ｖ、Ｎｂ、Ｍ
ｏ、Ｃｒなどの周期律表第４ａ、５ａ、６ａ族金属の炭
化物、窒化物、炭窒化物の群より選ばれる少なくとも１
種を含む硬質粒子と、Ｃｏ、Ｎｉなどの鉄族金属を主と
する結合相からなるもので、硬質相は全量中８５〜９２
体積％、結合相は８〜１５体積％の割合で存在する。Hereinafter, the present invention will be described in detail. As a cemented carbide base material used in the present invention, a cemented carbide generally used conventionally is adopted. Specifically, tungsten carbide is used as a main component, and Ti, Zr, Hf, V, Nb, M
at least one selected from the group consisting of carbides, nitrides, and carbonitrides of metals of Groups 4a, 5a, and 6a of the periodic table such as o and Cr;
It is composed of hard particles containing seeds and a binder phase mainly composed of an iron group metal such as Co or Ni.
% By volume, the binder phase is present in a proportion of 8 to 15% by volume.
【０００９】この超硬合金は、通常、硬質相および結合
相を形成する各成分の原料粉末を所定の割合で混合し、
成形したものを１３５０〜１５５０℃の真空雰囲気中で
焼成することにより得られる。[0009] This cemented carbide is usually mixed with a raw material powder of each component forming a hard phase and a binder phase at a predetermined ratio,
It is obtained by firing the molded product in a vacuum atmosphere at 1350 to 1550 ° C.
【００１０】一方、上記の超硬合金母材の表面に形成さ
れる硬質層は、ＴｉＣ、ＴｉＣＮ、ＴｉＮ、ＴｉＡｌ
Ｎ、Ａｌ2 Ｏ3 などの周期律表第４ａ、５ａ族金属およ
びＡｌの炭化物、窒化物、炭窒化物、酸化物から選ばれ
る少なくとも１種を単層または複数層形成したものから
構成される。通常、このような硬質層は、化学気相成長
法や、スパッタリング法、蒸着法などの物理蒸着法など
によって、１〜１５μｍの膜厚で形成される。On the other hand, the hard layer formed on the surface of the cemented carbide base material is made of TiC, TiCN, TiN, TiAl
It is composed of a single or multiple layers of at least one selected from the group consisting of metals of Groups 4a and 5a of the periodic table such as N and Al 2 O 3 and carbides, nitrides, carbonitrides and oxides of Al. . Usually, such a hard layer is formed to a thickness of 1 to 15 μm by a chemical vapor deposition method, a physical vapor deposition method such as a sputtering method or a vapor deposition method, or the like.
【００１１】超硬合金母材は、焼成後の焼き肌面には前
述した通り、脱炭層や金属富化層などの異質層が存在
し、しかもその表面粗さは平均粗さＲａでおよそ０．７
μｍ以上と非常に大きい。このような異質層の存在は、
硬質層と母材との付着性を低下させるために除去するこ
とが必要である。As described above, the cemented carbide base material has an extraneous layer such as a decarburized layer and a metal-enriched layer on the burnt surface after firing, and its surface roughness is about 0 in average roughness Ra. .7
Very large at μm or more. The existence of such a heterogeneous layer
It is necessary to remove the hard layer to reduce the adhesion between the base material and the hard layer.
【００１２】そこで、本発明によれば、この異質層を除
去すると同時に表面の粗さを平均粗さＲａで０．１５〜
０．４μｍとなるように表面処理を行うことが重要であ
る。Therefore, according to the present invention, at the same time as removing the extraneous layer, the surface roughness is reduced to an average roughness Ra of 0.15 to 0.15.
It is important to perform a surface treatment so as to have a thickness of 0.4 μm.
【００１３】この時の平均表面粗さを上記の範囲に限定
したのは、Ｒａが０．１５μｍより小さいと、硬質層の
すべりによる剥離が生じ、Ｒａが０．４μｍを越える
と、母材表面の凹凸が大きいためにその付着性が低下し
硬質層の膜剥離が生じるためである。The reason why the average surface roughness at this time is limited to the above range is that if the Ra is smaller than 0.15 μm, the hard layer will be peeled off due to slip, and if the Ra exceeds 0.4 μm, the surface of the base material will be reduced. This is because, because of the large unevenness, the adhesion of the hard layer is reduced and the hard layer is peeled off.
【００１４】超硬合金の表面粗さを制御する方法として
各種の方法が知られているが、例えば、バレル研磨によ
れば上記の表面粗さまで研磨することは難しく、しかも
研磨傷に方向性があるために硬質層の密着が不均一で剥
離に方向性が生じてしまい、また、ダイヤモンドブラシ
による方法では、鏡面加工されて表面粗さが上記の範囲
より小さくなりすぎ、本発明の範囲に制御することが難
しい。Various methods are known for controlling the surface roughness of a cemented carbide. For example, according to barrel polishing, it is difficult to polish the surface to the above-mentioned surface roughness, and the direction of polishing scratches is low. Due to this, the adhesion of the hard layer is uneven and the direction of peeling is generated, and the method using a diamond brush is mirror-finished and the surface roughness is too small than the above range, and is controlled within the range of the present invention. Difficult to do.
【００１５】そこで、本発明によれば、ブラシ研磨を用
いると上記の表面粗さに加工することが容易となる。ま
た、このブラシ研磨によれば、研磨後の表面にはランダ
ムな方向に研磨傷が形成されることから、硬質層を形成
しても付着性が均一であり、高い付着性が付与される。Therefore, according to the present invention, the use of brush polishing facilitates processing to the above surface roughness. Further, according to this brush polishing, polishing scratches are formed on the polished surface in random directions, so that even if a hard layer is formed, the adhesion is uniform and high adhesion is provided.
【００１６】[0016]
【作用】本発明によれば、硬質層を形成する超硬合金表
面を平均粗さＲａで０．１５〜０．４μｍに制御するこ
とにより、硬質層の母材への付着性を向上させることが
できる。さらに、その超硬合金表面にランダムな方向に
研磨傷を形成することにより、硬質層の外部からの応力
に対する耐力に方向性がないことから硬質層の母材への
均一な付着性を付与することができる。これにより、異
常摩耗を生じることなく安定した切削性能を有する切削
工具を得ることができる。According to the present invention, the adhesion of the hard layer to the base material is improved by controlling the surface of the cemented carbide forming the hard layer to have an average roughness Ra of 0.15 to 0.4 μm. Can be. Furthermore, by forming polishing scratches in a random direction on the surface of the cemented carbide, since the hard layer has no directionality in the strength against external stress, it imparts uniform adhesion to the base material of the hard layer. be able to. Thus, a cutting tool having stable cutting performance without causing abnormal wear can be obtained.
【００１７】[0017]
【実施例】原料粉末として、市販の平均粒径が６μｍの
ＷＣ粉末、Ｃｏ粉末、ＴｉＣ粉末、ＴａＣ粉末を準備
し、これらの粉末をＷＣ８５重量％、ＴｉＣ３重量％、
ＴｉＮ０．１５重量％、ＴａＣ粉末４．８５重量％、Ｃ
ｏ７重量％からなる組成に配合し、さらにＣ粉末を添加
し、振動ミルにて１２時間湿式混合粉砕し乾燥後、ＳＮ
ＭＧ１２０４０８形状に成形した。EXAMPLES As raw material powders, commercially available WC powder, Co powder, TiC powder, and TaC powder having an average particle diameter of 6 μm were prepared, and these powders were WC 85% by weight, TiC 3% by weight,
0.15% by weight of TiN, 4.85% by weight of TaC powder, C
o 7% by weight, further added C powder, wet-mixed and crushed for 12 hours with a vibration mill, dried, and
It was molded into MG120408 shape.
【００１８】この成形体を真空中１４５０℃で１時間保
持して焼結し、内部にＣ−３型有孔度の遊離炭素を含む
超硬合金母材を作製した。The compact was sintered at 1450 ° C. for 1 hour in a vacuum to obtain a cemented carbide base material containing C-3 porosity free carbon therein.
【００１９】この母材の表面には、脱炭によるポアが発
生した異質層が存在していた。この母材の外表面（逃げ
面）をダイヤモンドブラシで砥粒および処理時間を変え
てブラシ研磨した本発明品とバレル研磨したもの、そし
てダイヤモンドパウダーで鏡面加工したものにＣＶＤ法
にてＴｉＣ７μｍ、Ａｌ2 Ｏ3 ３μｍからなる硬質層を
形成し、表面の粗さと硬質層の付着強度をスクラッチテ
スターにて測定し、比較した結果を表１に示した。An extraneous layer in which pores were generated by decarburization was present on the surface of the base material. The outer surface (flank surface) of this base material was polished by a diamond brush with different abrasive grains and processing time for brush-polished products of the present invention, barrel-polished, and diamond-polished to a mirror-finished surface. A hard layer made of 3 μm 2 O 3 was formed, and the surface roughness and the adhesive strength of the hard layer were measured with a scratch tester. The results of comparison are shown in Table 1.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１から明らかなように、本発明に基づ
き、表面粗さが０．１５〜０．４μｍに制御された試料
はいずれも高い付着力を示した。As is evident from Table 1, all the samples whose surface roughness was controlled to 0.15 to 0.4 μm according to the present invention exhibited high adhesion.
【００２２】次に、被削材ＳＣＭ４３５を周速２６０ｍ
／ｍｉｎ、切り込み２ｍｍ、送り０．３ｍｍ／ｒｅｖで
１０分間切削後、逃げ面における硬質層の剥離状態を観
察したところ、本発明品は全く剥離は認められなかった
が、バレル研磨および鏡面加工により表面粗さがＲａで
０．１５〜０．４μｍを逸脱した試料は、いずれも剥離
が発生した。なお、母材の表面加工後の表面観察におい
ては、ブラシ研磨した本発明品の母材表面にはランダム
な研磨傷が形成されていた。Next, the work material SCM435 is rotated at a peripheral speed of 260 m.
/ Min, cutting depth 2 mm, feed 0.3 mm / rev after cutting for 10 minutes and observing the peeling state of the hard layer on the flank, no peeling was observed for the product of the present invention, but by barrel polishing and mirror finishing In all of the samples whose surface roughness deviated from Ra of 0.15 to 0.4 μm, peeling occurred. In addition, in the surface observation after the surface processing of the base material, random polishing scratches were formed on the surface of the base material of the product of the present invention polished by brush.
【００２３】実施例２ 原料粉末として、市販の平均粒径が６μｍのＷＣ粉末、
Ｃｏ粉末、ＴｉＣ粉末、ＴａＣ粉末を準備し、これらの
粉末をＷＣ９０重量％、ＴｉＣ２重量％、ＴａＣ粉末２
重量％、Ｃｏ６重量％からなる組成に配合し、振動ミル
にて１２時間湿式混合粉砕し乾燥後、ＣＮＭＡ１２０４
１２形状に成形した。この成形体を真空中１５００℃で
１時間保持して焼結し超硬合金母材を作製した。Example 2 As a raw material powder, a commercially available WC powder having an average particle size of 6 μm,
A Co powder, a TiC powder, and a TaC powder were prepared, and these powders were mixed with WC 90% by weight, TiC 2% by weight, TaC powder 2
% Of Co and 6% by weight of Co, and wet-mixed and pulverized for 12 hours with a vibration mill and dried.
It was molded into 12 shapes. The compact was held at 1500 ° C. for 1 hour in a vacuum and sintered to prepare a cemented carbide base material.
【００２４】この超硬合金の表面を実施例１と同様にブ
ラシ研磨、バレル研磨および鏡面加工を施し、その表面
にＴｉＮ、ＴｉＣおよびＡｌ2 Ｏ3 からなる硬質層をＣ
ＶＤ法により形成し、硬質層の付着強度を測定した。測
定の結果、表２に示すように実施例１と同様に本発明の
超硬合金は優れた付着性を示した。The surface of the cemented carbide is subjected to brush polishing, barrel polishing and mirror finishing in the same manner as in Example 1, and a hard layer made of TiN, TiC and Al 2 O 3 is
It was formed by the VD method, and the adhesion strength of the hard layer was measured. As a result of the measurement, as shown in Table 2, similarly to Example 1, the cemented carbide of the present invention showed excellent adhesion.
【００２５】[0025]
【表２】 [Table 2]
【００２６】次に、被削材としてＦＣＤ４５の幅５ｍｍ
の４本溝入りのスリーブ材（鋳込み品）を周速２００ｍ
／ｍｉｎ、切り込み１．５ｍｍ、送り０．３ｍｍ／ｒｅ
ｖで１５分間切削後、ノーズ摩耗の形態を観察したとこ
ろ、本発明品では、その摩耗形態は刃先に平行で直線的
であったが、バレル研磨品、鏡面加工品では凹凸の激し
い摩耗形態であった。なお、母材の表面加工後の表面観
察においては、実施例１と同様に本発明品の母材表面に
はランダムな研磨傷が形成されていた。Next, as a work material, the width of the FCD 45 is 5 mm.
200m peripheral speed with 4 grooved sleeve material (cast product)
/ Min, depth of cut 1.5mm, feed 0.3mm / re
After cutting for 15 minutes at v, the form of nose wear was observed. In the case of the present invention, the form of wear was parallel to the cutting edge and linear, but in the case of barrel polished and mirror-finished products, the form of wear was extremely uneven. there were. In the surface observation of the base material after surface processing, random polishing scratches were formed on the surface of the base material of the product of the present invention, as in Example 1.
【００２７】[0027]
【発明の効果】以上詳述した通り、本発明によれば、硬
質層の母材に対する付着強度を高めることができ、これ
により鋼や鋳鉄の切削加工時に発生する硬質層の剥離に
よる刃先の異常損傷を抑制することができ、切削工具の
寿命を向上できる。As described above in detail, according to the present invention, it is possible to increase the adhesion strength of the hard layer to the base material, and thereby, the abnormalities of the cutting edge due to the peeling of the hard layer generated during cutting of steel or cast iron. Damage can be suppressed, and the life of the cutting tool can be improved.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ２３Ｃ 14/06 Ｃ２３Ｃ 14/06 Ｈ (56)参考文献 特開 昭62−74508（ＪＰ，Ａ) 特開 平２−104496（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C23C 16/00 - 16/56 C23C 14/00 - 14/58 C22C 29/08 B22F 3/24 B23B 27/14 B23P 15/28 ＩＮＳＰＥＣ（ＤＩＡＬＯＧ) ＪＩＣＳＴファイル（ＪＯＩＳ)────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification symbol FI C23C 14/06 C23C 14/06 H (56) References JP-A-62-74508 (JP, A) JP-A-2-104496 ( JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C23C 16/00-16/56 C23C 14/00-14/58 C22C 29/08 B22F 3/24 B23B 27/14 B23P 15 / 28 INSPEC (DIALOG) JICST File (JOIS)
Claims (2)
第４ａ、５ａ、６ａ族金属の炭化物、窒化物、炭窒化物
の群より選ばれる少なくとも１種を含む硬質粒子と、鉄
族金属を主とする結合相からなる超硬合金母材の表面
に、周期律表第４ａ、５ａ族金属およびＡｌの炭化物、
窒化物、炭窒化物、酸化物から選ばれる少なくとも１種
の単層もくしは複数層からなる硬質層を被覆してなる被
覆超硬合金において、前記超硬合金母材の少なくとも刃
先を含む表面の平均表面粗さＲａが０．１５〜０．４μ
ｍであることを特徴とする被覆超硬合金。1. A hard particle comprising tungsten carbide as a main component and containing at least one selected from the group consisting of carbides, nitrides and carbonitrides of metals of Groups 4a, 5a and 6a of the periodic table, and an iron group metal. On the surface of a cemented carbide base material composed mainly of a binder phase, carbides of metals of the 4a and 5a groups of the periodic table and Al,
In a coated cemented carbide obtained by covering at least one kind of single layer selected from nitride, carbonitride and oxide or a hard layer composed of a plurality of layers, a surface including at least a cutting edge of the cemented carbide base material Average surface roughness Ra of 0.15 to 0.4 μm
m. Coated cemented carbide characterized by m.
形成されていることを特徴とする請求項１記載の被覆超
硬合金。2. The coated cemented carbide according to claim 1, wherein polishing scratches are formed on the surface of the base material in random directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04259470A JP3110890B2 (en) | 1992-09-29 | 1992-09-29 | Coated cemented carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04259470A JP3110890B2 (en) | 1992-09-29 | 1992-09-29 | Coated cemented carbide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06108253A JPH06108253A (en) | 1994-04-19 |
| JP3110890B2 true JP3110890B2 (en) | 2000-11-20 |
Family
ID=17334527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04259470A Expired - Fee Related JP3110890B2 (en) | 1992-09-29 | 1992-09-29 | Coated cemented carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3110890B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10428997B2 (en) | 2015-01-06 | 2019-10-01 | Jin Tae Jang | Mounting member |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5722803A (en) * | 1995-07-14 | 1998-03-03 | Kennametal Inc. | Cutting tool and method of making the cutting tool |
| JP3643639B2 (en) * | 1996-03-05 | 2005-04-27 | 日本特殊陶業株式会社 | Cemented carbide structure, manufacturing method thereof and cutting tool using the same |
| JP3453033B2 (en) * | 1996-10-23 | 2003-10-06 | 株式会社豊田中央研究所 | Coating member and method of manufacturing the same |
| IL140024A0 (en) * | 1999-12-03 | 2002-02-10 | Sumitomo Electric Industries | Coated pcbn cutting tools |
| US6723389B2 (en) | 2000-07-21 | 2004-04-20 | Toshiba Tungaloy Co., Ltd. | Process for producing coated cemented carbide excellent in peel strength |
| US6589602B2 (en) * | 2001-04-17 | 2003-07-08 | Toshiba Tungaloy Co., Ltd. | Highly adhesive surface-coated cemented carbide and method for producing the same |
| JP2003251503A (en) * | 2001-12-26 | 2003-09-09 | Sumitomo Electric Ind Ltd | Surface covering cutting tool |
| US7306411B2 (en) * | 2002-09-03 | 2007-12-11 | Mitsubishi Materials Corporation | Drill with groove width variation along the drill and double margin with a thinning section at the tip |
| JP4815925B2 (en) * | 2005-07-27 | 2011-11-16 | 株式会社タンガロイ | Coated sintered alloy |
| WO2008105519A1 (en) * | 2007-02-28 | 2008-09-04 | Kyocera Corporation | Cutting tool and process for manufacturing the same |
| JP2010524710A (en) * | 2007-04-27 | 2010-07-22 | デグテック エルティーディー | Coated cemented carbide cutting tool and pretreatment and coating method for its manufacture |
| JP5430595B2 (en) * | 2011-03-14 | 2014-03-05 | 京セラ株式会社 | Throwaway tip |
| WO2018181272A1 (en) * | 2017-03-29 | 2018-10-04 | 京セラ株式会社 | Coated tool and cutting tool |
| JP7055761B2 (en) | 2019-02-15 | 2022-04-18 | 株式会社タンガロイ | Cover cutting tool |
-
1992
- 1992-09-29 JP JP04259470A patent/JP3110890B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10428997B2 (en) | 2015-01-06 | 2019-10-01 | Jin Tae Jang | Mounting member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06108253A (en) | 1994-04-19 |
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