JPH06312319A - Rotary cutting tool and its manufacture - Google Patents
Rotary cutting tool and its manufactureInfo
- Publication number
- JPH06312319A JPH06312319A JP12547893A JP12547893A JPH06312319A JP H06312319 A JPH06312319 A JP H06312319A JP 12547893 A JP12547893 A JP 12547893A JP 12547893 A JP12547893 A JP 12547893A JP H06312319 A JPH06312319 A JP H06312319A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- cutting edge
- diamond
- surface roughness
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/31—Diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23C2228/10—Coating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Drilling Tools (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はアルミニウム合金等の金
属やサーメット、セラミック、プラスチック等の構造材
料、機械部品、光学部品、電子部品等の切削加工特にド
リル、リーマ、エンドミル等円筒面外周及び／又は同端
面に超硬質膜を被覆した切刃を有する回転切削工具並び
にその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal such as an aluminum alloy, a structural material such as cermet, ceramics and plastics, cutting of machine parts, optical parts, electronic parts, etc. Alternatively, the present invention relates to a rotary cutting tool having a cutting edge whose end face is coated with a super-hard film, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】従来よりダイヤモンド膜を各種基材表面
に被覆することについても、被覆した部材を利用するこ
とについても、多くの試みや提案がなされている。然し
乍ら超硬合金基材表面に、ダイヤモンド膜を形成して
も、その付着強度が低く、ダイヤモンド膜表面の研磨は
困難で、また厚い膜に形成することも難しく、この種の
切刃の実用化は進んでいない。2. Description of the Related Art Many attempts and proposals have hitherto been made regarding coating a surface of various substrates with a diamond film and utilizing coated members. However, even if a diamond film is formed on the surface of a cemented carbide substrate, the adhesion strength is low, polishing of the diamond film surface is difficult, and it is also difficult to form a thick film. Is not progressing.
【０００３】このため例えば厚膜を形成しやすいSi基材
上にダイヤモンド膜を生成し、この厚膜をそのままか或
は基材と分離して、切刃構成部材上にろうづけ固着し、
研磨して用いる方法が提案されているが、この方法は製
作に手数を要し、コストも高い。For this reason, for example, a diamond film is formed on a Si substrate on which a thick film is easily formed, and this thick film is directly or separately separated from the substrate, and is brazed and fixed on a cutting blade component.
A method of polishing and using has been proposed, but this method requires a lot of labor for production and is high in cost.
【０００４】[0004]
【発明が解決しようとする課題】超硬合金等のサーメッ
ト基材上にダイヤモンド膜を形成した被覆部材が、その
儘切刃部として用いられれば理想的である。然し乍ら化
学的気相合成法で生成したダイヤモンド膜の表面粗さは
１μｍ乃至３μｍＲmax 程度と粗く、精密な切削加工を
行なうには不充分であり、またこれを解消するため表面
に研磨加工を加えて使用しようとすれば、膜の付着力が
弱く膜の厚みも薄いので実行困難であり、結局充分な実
用の域に達していない。Ideally, a covering member having a diamond film formed on a cermet base material such as cemented carbide should be used as the cutting edge. However, the surface roughness of the diamond film produced by the chemical vapor deposition method is as rough as about 1 μm to 3 μm Rmax, which is not sufficient for precision cutting, and in order to eliminate this, polishing is added to the surface. If it is tried to be used, it is difficult to carry out because the adhesive force of the film is weak and the thickness of the film is thin, and it has not reached a practical range in the end.
【０００５】また上記のダイヤモンドの膜被覆型であ
れ、厚膜ろうづけ型であれダイヤモンド膜よりなる切刃
部においては、シャープエッジを形成する切刃稜の加工
や、測定乃至は使用時における稜線欠け（いわゆる刃こ
ぼれ）を生じ易く、これ等の諸問題を解消した実用化の
促進が望まれている。Further, in the cutting edge portion made of a diamond film, whether it is a diamond film coating type or a thick film brazing type, the cutting edge ridge that forms a sharp edge and the ridge line during measurement or use are used. Chips (so-called blade spills) are likely to occur, and it is desired to promote practical application by solving these problems.
【０００６】[0006]
【課題を解決するための手段】発明者らは、切刃部特に
ドリル、リーマ、エンドミル、ボールエンドミル等の回
転切削において、ダイヤモンド膜に求められる必須の要
件は何かを改めて追求し、試作の結果次の確信を得た。
即ち切刃部において寸法精度、仕上面精度の要求される
のは、加工物の加工面に転写される逃げ面であり、すく
い面は必要な場合がある程度で、切刃稜の仕上は必須で
ない。また所要の仕上面精度を達成するには、ダイヤモ
ンド膜が生成状態の膜表面の粗さより平滑に、例えば表
面粗さ 0.3μｍＲmax 好ましくは 0.1μｍＲmax 程度以
下に研磨できるだけの厚さと基材との付着強度が必要で
ある。Means for Solving the Problems The inventors of the present invention have made a new search for what is an essential requirement for a diamond film in a cutting blade portion, particularly in rotary cutting of a drill, a reamer, an end mill, a ball end mill, etc. As a result, I got the following conviction.
That is, it is the flank surface that is transferred to the machined surface of the workpiece that requires dimensional accuracy and finished surface accuracy in the cutting edge portion, the rake surface is necessary in some cases, and the finishing of the cutting edge is not essential. . Further, in order to achieve the required finishing surface accuracy, the diamond film should be smoother than the roughness of the film surface in the formed state, for example, the surface roughness should be 0.3 μmRmax or preferably 0.1 μmRmax or less, and the adhesion strength with the substrate should be sufficient. is necessary.
【０００７】この様な知見に基き、ダイヤモンド膜の研
磨等による表面仕上げは、切削加工面を直接転写形成す
るマージンを含む逃げ面よりの追い込みに限ればよく、
また切刃稜は生成膜の儘残しておいてよい。こうして仕
上げ加工する部分を減じて効率化し、切刃稜線までの仕
上げ加工による稜線カケの発生も防止する。Based on such knowledge, the surface finishing by polishing etc. of the diamond film may be limited to driving in from the flank including a margin for directly transferring the cut surface,
Further, the cutting edge may be left untouched in the formed film. In this way, the portion to be finished is reduced to improve efficiency, and the occurrence of chipping of the ridge due to finishing up to the cutting edge ridge is also prevented.
【０００８】また上記の表面仕上げは、ダイヤモンド膜
が所要の厚さと付着強度を備えておればこそできるもの
であって、その必須条件となるダイヤモンド膜とは、該
膜が表面粗さ 0.3μｍＲmax 程度好ましくは 0.1μｍＲ
max 以下の粗さに機械研磨可能なものかどうかによって
判断できる。The above surface finish can be achieved only if the diamond film has a required thickness and adhesive strength, and the essential condition is that the film has a surface roughness of about 0.3 μmRmax. Preferably 0.1 μmR
It can be judged by whether the surface can be mechanically polished to a roughness of max or less.
【０００９】本発明者らは、この研磨可能な切刃部材
は、サーメット基材表面をIa族、 III族、 IVb族、Vb族
元素の１種以上またはその化合物の存在下で処理し、該
処理面上に化学的気相合成法によりダイヤモンド及びま
たはダイヤモンド状炭素よりなる超硬質膜を形成するこ
とにより、極めて容易に製造し得ることを確認した。According to the present inventors, the abradable cutting blade member is obtained by treating the surface of a cermet substrate in the presence of one or more elements of group Ia, group III, group IVb, group Vb or a compound thereof. It was confirmed that the ultra-hard film made of diamond and / or diamond-like carbon was formed on the treated surface by the chemical vapor phase synthesis method, and thus it could be manufactured extremely easily.
【００１０】以下実施例により本発明の内容を詳述す
る。尚実施例においては、何れも従来技術との比較よ
り、WC−Co系に代表される超硬合金を基材とするものに
ついて示したが、炭窒化チタン系焼結合金等、硬質化合
物と結合相金属とよりなる他のサーメットを基材とする
ものについても実施できることは云うまでもない。また
実施例に示した実施工程において、処理前の基材表面に
傷つけ処理を行う等、既知の或は新しい工程を付加して
も勿論差し支えない。The contents of the present invention will be described in detail below with reference to examples. In addition, in each of the examples, compared with the prior art, it is shown that the base material is a cemented carbide represented by the WC-Co system, but it is combined with a hard compound such as a titanium carbonitride based sintered alloy. It goes without saying that the present invention can also be carried out on a substrate having another cermet made of a phase metal as a base material. In addition, it is of course possible to add a known or new process such as a scratching treatment to the surface of the base material before the treatment in the process shown in the examples.
【００１１】[0011]
【実施例】図３及び図４は回転工具の一例を示す２枚刃
エンドミルの正面図及び側面図で、１はその刃部であ
る。図２は、その刃部構成を説明するもので、刃部の軸
直角断面の拡大図である。超硬合金よりなる刃部１は、
溝に面するすくい面２と、外周面３上の逃げ面４と、両
面が交差して形成する切刃稜５を具備している。更に逃
げ面４はマージン４’を備えて、円滑な切削と寸法精度
の向上が計られている。T1は逃げ面の、Ｅはマージンの
夫々巾を示す。そして、前記従来技術の項において述べ
た様に、刃部１としてダイヤモンド膜を用いたものとし
ては、超硬合金の表面にダイヤモンド膜を形成した儘
（表面粗さ１μｍＲmax 程度より粗い）のものが試みら
れている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 3 and 4 are front and side views of a two-blade end mill showing an example of a rotary tool, and 1 is a blade portion thereof. FIG. 2 is an enlarged view of a cross section perpendicular to the axis of the blade, for explaining the configuration of the blade. The blade 1 made of cemented carbide
It is provided with a rake face 2 facing the groove, a flank face 4 on the outer peripheral face 3, and a cutting edge 5 formed by intersecting both faces. Further, the flank 4 is provided with a margin 4'to ensure smooth cutting and improvement in dimensional accuracy. T 1 is the flank and E is the width of the margin. As described in the section of the prior art, as the blade portion 1 using a diamond film, one having a diamond film formed on the surface of cemented carbide (having a surface roughness of less than about 1 μmRmax) is used. Being tried.
【００１２】[0012]
【実施例１】図１は、刃部11をダイヤモンド膜被覆WC−
５％Co超硬合金で形成した例を示すもので、エンドミル
の刃部の軸直角断面を模式的に示した断面図である。ダ
イヤモンド膜12を除き刃部の構成は図２と同様である。
超硬合金チップを 300℃のホウ酸（H3BO3 ）融液に20分
間浸漬処理した後、熱フィラメントＣＶＤ装置にて、圧
力 105Torr、ガス組成H2−１vol ％ CH4、基材温度 900
℃で10時間成膜し、膜厚10〜15μｍ、表面粗さ１μｍＲ
max のダイヤモンド膜12の被覆を施した。[Embodiment 1] FIG. 1 shows a blade 11 coated with a diamond film WC-
FIG. 3 is a cross-sectional view schematically showing a cross section perpendicular to an axis of a blade portion of an end mill, showing an example formed of 5% Co cemented carbide. The structure of the blade is the same as that of FIG. 2 except for the diamond film 12.
Cemented carbide chips were immersed in boric acid (H 3 BO 3 ) melt at 300 ° C for 20 minutes, and then pressure 105 Torr, gas composition H 2 -1vol% CH 4 , substrate temperature 900 with a hot filament CVD device.
Film formation at ℃ for 10 hours, film thickness 10 ~ 15μm, surface roughness 1μmR
A max diamond film 12 coating was applied.
【００１３】得られたダイヤモンド膜被覆超硬合金チッ
プを♯800 （30μｍ）レジンボンドダイヤモンドホイー
ルによって、図１で示す様に、逃げ面14を、すくい面13
と切刃稜15を残して研磨形成した。すくい面を残したの
は、前記の様に切削加工面形成に直接関与しないからで
あり、切刃稜を残したのはダイヤモンド膜形成による丸
味をもった稜線は切削の支障とならないからである。研
磨による逃げ面の表面粗さは 0.1μｍＲmax 以下の粗さ
であり、逃げ面からの追い込み研磨のみで、研磨しなか
ったすくい面、切刃稜部は１μｍＲmax 程度であった。
研磨はマージンを含む逃げ面全体を研磨したが、マージ
ンを有する工具の場合は、マージン後部の逃げ面の研磨
は省略することもできる。なお図中ダイヤモンド膜12
で、ハッチングのあるところが研磨除去部分を示し、切
刃稜にダイヤモンドの突出した部分があるときは、これ
を除く程度に軽く研磨する等適度に仕上げしても勿論差
し支えない。The diamond film-coated cemented carbide chip thus obtained was subjected to a # 800 (30 μm) resin bond diamond wheel so that the flank face 14 and the rake face 13 were formed as shown in FIG.
And, the cutting edge 15 was left and polished. The reason why the rake face is left is that it does not directly participate in the formation of the cutting surface as described above, and the reason why the cutting edge is left is that the rounded ridge line due to the diamond film formation does not hinder the cutting. . The surface roughness of the flank surface by polishing was 0.1 μmRmax or less, and only the rake polishing from the flank surface was performed, and the rake surface and cutting edge ridge portion which were not polished were about 1 μmRmax.
Although the entire flank including the margin was ground in the polishing, in the case of a tool having a margin, the grinding of the flank at the rear of the margin can be omitted. In the figure, diamond film 12
In the case where the hatched portion indicates the polishing-removed portion, and when the cutting edge has a protruding portion of the diamond, it is of course possible to finish the polishing to a suitable degree such as lightly polishing to the extent that the diamond is removed.
【００１４】図１の切刃部を用いたエンドミルにより、
Al−18％Siの被削材を、湿式断続切削により切込み 0.1
mm、送り 0.1mm／ rev、切削速度 300ｍ／min で行った
ところ、切削面は 1.5μｍＲmax と良く、切削距離 3,0
00ｍを越えてもなお異状がなかった。With the end mill using the cutting edge portion shown in FIG.
Cut the work piece of Al-18% Si by wet intermittent cutting 0.1
mm, feed 0.1 mm / rev, cutting speed 300 m / min, cutting surface is good at 1.5 μm Rmax, cutting distance 3,0
There were no abnormalities beyond 00m.
【００１５】また実施例１においては、基材をホウ酸融
液によって処理する方法について示したが、これをホウ
砂（Na2B4O7 ）にかえたり、水酸化ナトリウム水溶液
（NaOH，3N）、水酸化カリウム水溶液（KOH, 3N ）を用
いたりすることもできる。ガス気中による処理方法とし
てはＣまたはＮの存在する雰囲気中で熱処理を施して、
上記融溶液処理と同様基材中の結合相金属の表面部を不
活性化させた後、熱フィラメントＣＶＤ装置等の化学的
気相合成法により、該基材上にダイヤモンド及びまたは
ダイヤモンド状炭素よりなる超硬質膜の被覆を形成する
ことによって、本発明を実施できる。In Example 1, a method of treating a substrate with a boric acid melt was shown. However, this was changed to borax (Na 2 B 4 O 7 ) or an aqueous sodium hydroxide solution (NaOH, 3N). ), Potassium hydroxide aqueous solution (KOH, 3N) can also be used. As a treatment method in a gas atmosphere, heat treatment is performed in an atmosphere containing C or N,
After deactivating the surface portion of the binder phase metal in the base material as in the above melt solution treatment, the chemical vapor phase synthesis method such as a hot filament CVD apparatus is used to form diamond and / or diamond-like carbon on the base material. The present invention can be carried out by forming a coating of an ultra-hard film.
【００１６】形成された超硬質膜被覆の逃げ面を、生成
状態の膜表面より平滑に即ち 0.3μｍＲmax 程度以下好
ましくは 0.1μｍＲmax 以下の粗さへの仕上げ加工は、
実施例１の様にダイヤモンドホイールを使った機械的研
磨によることが、付着強度の確認にもなり好ましいが、
レーザー、イオンビームの様な高エネルギー加工等他の
公知のあるいは新規な加工法によっても勿論差支えな
い。The flank of the formed ultra-hard film coating is smoother than the surface of the film in the formed state, that is, finish processing to a roughness of about 0.3 μm Rmax or less, preferably 0.1 μm Rmax or less is performed.
Mechanical polishing using a diamond wheel as in Example 1 is preferable because it can also confirm the adhesion strength.
Of course, other known or new processing methods such as high energy processing such as laser and ion beam may be used.
【００１７】[0017]
【発明の効果】本発明においては、切刃部を構成する基
材上に被覆された超硬質膜の表面粗さは、直接切削と切
削加工面精度に関与する逃げ面が切刃稜を残して 0.3μ
ｍＲmax 以下の表面粗さに仕上げられており、且超硬質
膜の基材への付着強度はこの仕上げに耐えるだけの高い
強度をもち、強度に沿い厚みも充分なものとなっている
ので、高い切削性能を有し長寿命の回転切削工具が極め
て容易に提供され、切削加工面の寸法精度、面精度も向
上される。According to the present invention, the surface roughness of the ultra-hard film coated on the base material forming the cutting edge portion is such that the flank face directly involved in the cutting and the precision of the cut surface leaves the cutting edge ridge. 0.3μ
The surface roughness is less than mRmax, and the adhesion strength of the ultra-hard film to the base material is high enough to withstand this finishing, and the thickness along with the strength is sufficient. A rotary cutting tool having cutting performance and long life can be provided very easily, and the dimensional accuracy and surface accuracy of the cut surface can be improved.
【図１】刃部の軸直角断面を模式的に示した断面図。FIG. 1 is a cross-sectional view schematically showing a cross section perpendicular to an axis of a blade portion.
【図２】刃部の軸直角断面を示した断面図。FIG. 2 is a cross-sectional view showing a cross section perpendicular to the axis of a blade portion.
【図３】２枚刃エンドミルの正面図。FIG. 3 is a front view of a 2-flute end mill.
【図４】図３の側面図。FIG. 4 is a side view of FIG.
１，11 刃部 ３ 外周面 12 ダイヤモンド膜 ２，13 すくい面 ４，14 逃げ面 ４’ マージン ５，15 切刃稜 1,11 Blade 3 Outer peripheral surface 12 Diamond film 2,13 Rake surface 4,14 Relief surface 4'Margin 5,15 Cutting edge
───────────────────────────────────────────────────── フロントページの続き (72)発明者 冨森 紘 大阪府堺市鳳北町２丁80番地 大阪ダイヤ モンド工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiromi Tomimori 2-80, Hobokucho, Sakai City, Osaka Prefecture Inside Osaka Diamond Industrial Co., Ltd.
Claims (4)
を有する回転切削工具において、該切刃部が基材上にダ
イヤモンドおよびまたはダイヤモンド状炭素よりなる超
硬質膜を被覆してなり、且つ少くとも切刃部の逃げ面
が、該超硬質膜の生成表面粗さより平滑に仕上げられて
なることを特徴とする回転切削工具。1. A rotary cutting tool having a cutting edge on the outer peripheral portion and / or the same end surface portion of a cylindrical surface, wherein the cutting edge portion is formed by coating a base material with an ultra-hard film made of diamond and / or diamond-like carbon. A rotary cutting tool, characterized in that at least the flank of the cutting edge is finished to be smoother than the surface roughness generated by the ultra-hard film.
上げたことを特徴とする請求項１記載の回転切削工具。2. The rotary cutting tool according to claim 1, wherein the cutting edge is not finished or is appropriately finished.
属が、少くとも基材表面においてIa族、 III族、 IVb
族、Vb族元素の１種または２種以上を含有した該表面上
に形成されてなることを特徴とする請求項１または２記
載の回転切削工具。3. The ultra-hard film has a bonding phase metal of the cermet base material, at least on the surface of the base material, a group Ia, a group III, and a group IVb.
The rotary cutting tool according to claim 1 or 2, wherein the rotary cutting tool is formed on the surface containing one kind or two kinds or more of group V and group Vb elements.
以上またはその化合物の存在下で、サーメット基材表面
に処理を施す工程と、該処理面上に化学的気相合成法に
よりダイヤモンド及びまたはダイヤモンド状炭素よりな
る超硬質膜を形成する工程と、該超硬質膜の少くとも切
刃部の逃げ面か、または切刃稜を除く該逃げ面を該超硬
質膜の生成表面粗さより平滑に仕上げる工程とを経てな
ることを特徴とする回転切削工具の製造方法。4. A step of treating the surface of a cermet substrate in the presence of one or more elements of group Ia, group III, group IVb, group Vb or a compound thereof, and chemical vapor deposition on the treated surface. A step of forming an ultra-hard film made of diamond and / or diamond-like carbon by a method, and forming the ultra-hard film on the flank of at least the cutting edge portion of the ultra-hard film, or on the flank excluding the cutting edge. A method of manufacturing a rotary cutting tool, which comprises a step of finishing the surface to be smoother than the surface roughness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5125478A JP2592761B2 (en) | 1993-04-28 | 1993-04-28 | Rotary cutting tool and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5125478A JP2592761B2 (en) | 1993-04-28 | 1993-04-28 | Rotary cutting tool and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06312319A true JPH06312319A (en) | 1994-11-08 |
| JP2592761B2 JP2592761B2 (en) | 1997-03-19 |
Family
ID=14911089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5125478A Expired - Lifetime JP2592761B2 (en) | 1993-04-28 | 1993-04-28 | Rotary cutting tool and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592761B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002370106A (en) * | 2001-06-15 | 2002-12-24 | Osg Corp | Diamond-coated cutting tool |
| JP2006068844A (en) * | 2004-09-01 | 2006-03-16 | Hitachi Tool Engineering Ltd | Hard film coated small-diameter member |
| 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 |
| CN102554319A (en) * | 2010-12-26 | 2012-07-11 | 三菱综合材料株式会社 | Carbon film cladding drill and manufacturing method thereof |
| DE102011076584A1 (en) * | 2011-05-27 | 2012-11-29 | Karnasch Professional Tools GmbH | Cutting tool, useful for machining workpieces, comprises a base body that comprises cutting edges in a region of its free end, where the cutting edges extend radially outward starting from the center of the base body |
| JP2013176817A (en) * | 2012-02-28 | 2013-09-09 | Mitsubishi Materials Corp | Drill made of diamond-coated cemented carbide having excellent wear resistance |
| WO2017043129A1 (en) * | 2015-09-09 | 2017-03-16 | 三菱マテリアル株式会社 | Drill |
| WO2017188154A1 (en) * | 2016-04-25 | 2017-11-02 | 京セラ株式会社 | Cutting tool |
| JP2018030182A (en) * | 2016-08-23 | 2018-03-01 | 住友電工ハードメタル株式会社 | Cutting tool |
| US20180147635A1 (en) * | 2015-05-28 | 2018-05-31 | Kyocera Corporation | Cutting tool |
| JPWO2021181518A1 (en) * | 2020-03-10 | 2021-09-16 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210315A (en) * | 1990-08-10 | 1992-07-31 | Nachi Fujikoshi Corp | Rotary cutting tool |
-
1993
- 1993-04-28 JP JP5125478A patent/JP2592761B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210315A (en) * | 1990-08-10 | 1992-07-31 | Nachi Fujikoshi Corp | Rotary cutting tool |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002370106A (en) * | 2001-06-15 | 2002-12-24 | Osg Corp | Diamond-coated 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 |
| JP2006068844A (en) * | 2004-09-01 | 2006-03-16 | Hitachi Tool Engineering Ltd | Hard film coated small-diameter member |
| CN102554319A (en) * | 2010-12-26 | 2012-07-11 | 三菱综合材料株式会社 | Carbon film cladding drill and manufacturing method thereof |
| DE102011076584A1 (en) * | 2011-05-27 | 2012-11-29 | Karnasch Professional Tools GmbH | Cutting tool, useful for machining workpieces, comprises a base body that comprises cutting edges in a region of its free end, where the cutting edges extend radially outward starting from the center of the base body |
| JP2013176817A (en) * | 2012-02-28 | 2013-09-09 | Mitsubishi Materials Corp | Drill made of diamond-coated cemented carbide having excellent wear resistance |
| US10688565B2 (en) * | 2015-05-28 | 2020-06-23 | Kyocera Corporation | Cutting tool |
| US20180147635A1 (en) * | 2015-05-28 | 2018-05-31 | Kyocera Corporation | Cutting tool |
| WO2017043129A1 (en) * | 2015-09-09 | 2017-03-16 | 三菱マテリアル株式会社 | Drill |
| WO2017188154A1 (en) * | 2016-04-25 | 2017-11-02 | 京セラ株式会社 | Cutting tool |
| CN109070246A (en) * | 2016-04-25 | 2018-12-21 | 京瓷株式会社 | Cutting element |
| JPWO2017188154A1 (en) * | 2016-04-25 | 2019-02-28 | 京セラ株式会社 | Cutting tools |
| US11642730B2 (en) | 2016-04-25 | 2023-05-09 | Kyocera Corporation | Cutting tool |
| JP2018030182A (en) * | 2016-08-23 | 2018-03-01 | 住友電工ハードメタル株式会社 | Cutting tool |
| JPWO2021181518A1 (en) * | 2020-03-10 | 2021-09-16 | ||
| US11660691B2 (en) | 2020-03-10 | 2023-05-30 | Sumitomo Electric Hardmetal Corp. | Reamer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2592761B2 (en) | 1997-03-19 |
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