JPH05177414A - Throw-away tip and its covering method - Google Patents
Throw-away tip and its covering methodInfo
- Publication number
- JPH05177414A JPH05177414A JP35958291A JP35958291A JPH05177414A JP H05177414 A JPH05177414 A JP H05177414A JP 35958291 A JP35958291 A JP 35958291A JP 35958291 A JP35958291 A JP 35958291A JP H05177414 A JPH05177414 A JP H05177414A
- Authority
- JP
- Japan
- Prior art keywords
- throw
- tip
- chip
- hole
- away tip
- 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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、切削工具等に使用され
るスローアウェイチップに物理蒸着法等により被覆する
時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 manufacturing method for coating a throw-away tip used for a cutting tool or the like by a physical vapor deposition method or the like.
【０００２】[0002]
【従来の技術】スローアウェイチップのような切削工具
を被覆処理する場合は、その加工終了した後、洗浄等に
より表面を清浄にし、セッティング治具にセット、被覆
時には治具自体を回転させ、膜厚のばらつきを減少させ
ている。そのため、スローアウェイチップの扱いは、切
れ刃加工が終了しているため慎重に扱うと共に、そのセ
ット方法も様々な方法が行われている。代表的なスロー
アウェイチップとしては、旋削用のスローアウェイチ
ップ−逃げ角０度、ピン孔有り、旋削用のスローアウ
ェイチップ−逃げ角０度、ピン孔無し、フライス用の
スローアウェイチップ−逃げ角１１度または１５度、ピ
ン孔有り、フライス用のスローアウェイチップ−逃げ
角１５度または２０度、ピン孔無し、の４種類がある。2. Description of the Related Art When coating a cutting tool such as a throw-away tip, after finishing the processing, the surface is cleaned by washing etc., set on a setting jig, and the jig itself is rotated at the time of coating to remove the film. It reduces the thickness variation. Therefore, the throw-away tip is handled carefully because the cutting edge processing is completed, and various setting methods are used. Typical throw-away inserts are throw-away inserts for turning-clearance angle 0 °, with pin hole, throw-away inserts for turning-clearance angle 0 °, no pin hole, throw-away insert for milling-clearance angle. There are four types: 11 degrees or 15 degrees, with a pin hole, throw-away tip for milling cutter-clearance angle 15 degrees or 20 degrees, no pin hole.
【０００３】これらのチップをセットする方法として
は、機械的に行う方法と、磁石等を使用して磁力により
固定する方法が一般的に実施されている。機械的に行う
方法は、ピン孔有りの場合は、金属の棒状のものに通
して、チップ、スペーサー、チップと順次積み重ねる方
法が取られ、ピン孔無しの場合にはチップ、スペーサ
ー、チップと順次積み重ねる方法で行われている。特に
のタイプは、両面使用するため様々な工夫が行われ
ている。、は片面のみの使用のため、磁力による固
定が一般的に使用されているが、磁力による固定では操
作性、膜厚等に影響がでて、充分な性能が発揮されてい
ないのが現状である。As a method of setting these chips, a mechanical method and a method of fixing by magnetic force using a magnet or the like are generally carried out. If there is a pin hole, the mechanical method is to pass through a metal rod-shaped object and stack sequentially with the chip, spacer, and chip.If there is no pin hole, the chip, spacer, and chip are sequentially stacked. It is done in a stacking manner. In particular, various types have been devised because they use both sides. Since, is used on only one side, fixing by magnetic force is generally used, but fixing by magnetic force affects the operability, film thickness, etc. and is not currently showing sufficient performance. is there.
【０００４】[0004]
【発明が解決しようとする問題点】本願発明は、スロー
アウェイチップ−特にポジチップのピン孔無し−に被覆
する場合に優れた処理性、操作性、長寿命化を提供する
ものである。さらに、Ｔｉ基の超硬質合金では、ＷＣ基
超硬等に比べ飽和磁側密度が小さいため、磁力を利用し
てのセットが困難なケースが多く、機械的に固定する方
法しか出来ず、量産性の面からも改善が必要であった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The invention of the present application provides excellent processability, operability, and a long service life when coating is performed with a throw-away tip, especially without a pin hole of a positive tip. In addition, Ti-based superhard alloys have a smaller saturation magnetic density than WC-based superhard alloys, etc., so it is often difficult to set them using magnetic force, and only mechanical fixing methods can be used. There was also a need for improvement in terms of sex.
【０００５】[0005]
【問題を解決するための手段】上記チップを被覆する治
具にセットする場合、本願発明ではあらかじめスローア
ウェイチップの中心部に貫通孔をもうけて、機械的にセ
ットする方法を使用する。そのため小さな貫通孔をプレ
スにてもうける。その径は、ピン孔よりもはるかに小さ
くて良く、チップを使用するときに強度的に肉厚を保て
る程度の大きさとする。また、放電等の加工にても出来
なくはないが、量産の面からは不利である。When the chip is set on a jig for covering the chip, the present invention uses a method of mechanically setting a through hole in the center of the throw-away chip in advance. Therefore, a small through hole is made with a press. Its diameter may be much smaller than that of the pin hole, and should be such that the wall thickness can be maintained in strength when the chip is used. Further, it is possible to perform processing such as electric discharge, but it is disadvantageous in terms of mass production.
【０００６】[0006]
【実施例】市販のＷＣ粉末（平均粒度４μｍ）ＴｉＣＮ
粉末（平均粒度１μｍ）ＴａＣ粉末（同１.２μｍ）Ｃ
ｏ粉末（同１μｍ）Ｎｉ粉末(同１μｍ)を用意し、これ
らを切削用超硬合金Ｐ３０相当の組成に配合し、ボール
ミル中で湿式粉砕，混合をおこない、乾燥処理後１Ton
／cm3の圧力でＳＤＣＮ４２２のかたちにプレス成形し
た。次に真空中１４００℃で焼結し、所定の形状に加工
した。加工終了後、洗浄し、図１叉は図２に示すような
１ｍｍ程度のワイヤーに通し、スペーサーを１個叉は２
個まいに挿入し、治具にセットした。その治具を図３に
示すようなチャンバー内にセットし、回転させながら被
覆処理を行った。回転は皮膜の厚さをより均一にするた
めである。また比較のため、磁力を利用したセット方法
も同様に実施した。皮膜の厚さを測定したところ、本願
発明のセツト方法ではすくい面：２ミクロン、逃げ面：
３ミクロンと蒸発源に対面する逃げ面に厚い膜が出来、
それに反し、磁力を使用した方法では、すくい面：３ミ
クロン、逃げ面：１ミクロンと蒸発源に対面するすくい
面に厚い膜が出来る。Example Commercially available WC powder (average particle size 4 μm) TiCN
Powder (average particle size 1 μm) TaC powder (same as 1.2 μm) C
o Powder (same 1 μm) Ni powder (same 1 μm) was prepared, compounded with a composition equivalent to cemented carbide P30 for cutting, wet pulverized and mixed in a ball mill, and dried to 1 Ton
It was press molded into SDCN422 at a pressure of / cm 3 . Next, it was sintered at 1400 ° C. in vacuum and processed into a predetermined shape. After finishing the process, wash and pass through a wire of about 1 mm as shown in Fig. 1 or Fig. 2, and insert one spacer or two spacers.
It was inserted individually and set in a jig. The jig was set in a chamber as shown in FIG. 3, and a coating process was performed while rotating the jig. The rotation is for making the film thickness more uniform. For comparison, a setting method using magnetic force was also performed. When the thickness of the coating was measured, the rake face: 2 μm and the flank face:
A thick film is formed on the flank facing the evaporation source of 3 microns,
On the contrary, in the method using magnetic force, a thick film is formed on the rake face facing the evaporation source with a rake face of 3 μm and a flank face of 1 μm.
【０００７】このチップを用いて下記の条件で切削試験
を行ない、その性能を評価した。 寿命試験 被削材 ＳＣＭ４４０ （Ｈｓ４０） 切削速度 ２００ｍ／min 送り ０.２mm／刃 切り込み ２mm 切削時間 ２０min 耐摩耗性は本発明のチップは逃げ面摩耗量ＶＢ＝０.１
１、比較チップはＶＢ＝０.２５と良くなり、またすく
い面は切り屑処理のため膜は必要であるが、寿命となら
ないためある程度薄くても充分であるのに対し、逃げ面
は耐摩耗性と直接つながるため摩耗が大きくなった。ま
たこの傾向は、チップ逃げ角が大きくなるほど、蒸着時
の回り込みが減少するため顕著に現れてくる。Using this chip, a cutting test was conducted under the following conditions to evaluate its performance. Life test Work material SCM440 (Hs40) Cutting speed 200m / min Feed 0.2mm / Flute depth 2mm Cutting time 20min Wear resistance is the flank wear amount VB = 0.1
1. VB = 0.25 for the comparative chip, and a film is required for the rake face to process chips, but a thin film is sufficient because it does not reach the end of life, whereas the flank face is wear-resistant. Wear is increased because it is directly connected to the wearability. In addition, this tendency becomes more remarkable as the chip clearance angle increases, because the wraparound during vapor deposition decreases.
【０００８】[0008]
【発明の効果】本願発明は、小さなスローアウェイチッ
プにあらかじめ貫通孔をもうけ、すくい面・逃げ面にた
いして、膜厚を制御する被覆方法を提供するものであ
り、貫通孔をもうけることにより操作性が良く、量産性
に優れ、また膜厚もチップ逃げ面がＰＶＤのカソードに
対面することにより、膜厚をすくい面より厚くでき、チ
ップの寿命をより長持ちさせることが可能となる被覆方
法である。The present invention provides a coating method in which a small throw-away tip is provided with a through hole in advance and the film thickness is controlled on the rake face and the flank face. By providing the through hole, operability is improved. The coating method is good and excellent in mass productivity, and can be made thicker than the rake surface by making the chip flank face the cathode of the PVD, thereby making it possible to prolong the life of the chip.
【図１】図１は、本発明のセット方法の１例を示す説明
図である。FIG. 1 is an explanatory diagram showing an example of a setting method of the present invention.
【図２】図２は、本発明のセット方法の１例を示す説明
図である。FIG. 2 is an explanatory diagram showing an example of a setting method of the present invention.
【図３】図３は、本発明のチャンバー内のセット方法の
１例を示す説明図である。FIG. 3 is an explanatory view showing an example of a method for setting the inside of the chamber of the present invention.
【図４】図４は、従来例のセット方法−磁石を応用した
例を示す。FIG. 4 shows an example of applying a conventional setting method-magnet.
１ チップ ２ ワイヤー ３ スペーサー ４ 蒸発源 ５ 磁性体 1 chip 2 wire 3 spacer 4 evaporation source 5 magnetic material
Claims (3)
り成形して成る被覆スローアウェイチップにおいて、チ
ップ中心部に貫通孔をもうけ、貫通孔の径がピン孔より
も小であることを特徴とするスローアウェイチップ。1. A coated throw-away tip formed by molding a powder such as a super hard alloy or powdered high speed steel, wherein a through hole is provided in the center of the tip and the diameter of the through hole is smaller than that of the pin hole. A throw-away tip to do.
おいて、該チップが特にＴｉを基とする超硬質合金であ
ることを特徴とするスローアウェイチップ。2. The throw-away tip according to claim 1, characterized in that the tip is a Ti-based cemented carbide.
り成形して成る被覆スローアウェイチップにおいて、チ
ップ中心部に貫通孔をもうけ、被覆処理の際、貫通孔に
ワイヤー等を通してチップを固定することを特徴とする
スローアウェイチップの被覆方法。3. In a coated throw-away chip formed by molding a powder of a super hard alloy or powdered high speed steel, a through hole is provided in the center of the chip, and a wire or the like is passed through the through hole to fix the chip during the coating process. A method for coating a throw-away tip, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35958291A JPH05177414A (en) | 1991-12-28 | 1991-12-28 | Throw-away tip and its covering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35958291A JPH05177414A (en) | 1991-12-28 | 1991-12-28 | Throw-away tip and its covering method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29174199A Division JP2000141108A (en) | 1999-01-01 | 1999-10-14 | Manufacture of coated throw away tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05177414A true JPH05177414A (en) | 1993-07-20 |
Family
ID=18465235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35958291A Pending JPH05177414A (en) | 1991-12-28 | 1991-12-28 | Throw-away tip and its covering method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05177414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504510A (en) * | 1999-07-05 | 2003-02-04 | サンドビック アクティエボラーグ | Method of mounting cutting insert for PVD coating |
| JP2010526680A (en) * | 2007-05-16 | 2010-08-05 | エーリコン・トレイディング・アーゲー・トリューバッハ | Cutting tools |
-
1991
- 1991-12-28 JP JP35958291A patent/JPH05177414A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504510A (en) * | 1999-07-05 | 2003-02-04 | サンドビック アクティエボラーグ | Method of mounting cutting insert for PVD coating |
| JP4672940B2 (en) * | 1999-07-05 | 2011-04-20 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Method for mounting a cutting insert for PVD coating |
| JP2010526680A (en) * | 2007-05-16 | 2010-08-05 | エーリコン・トレイディング・アーゲー・トリューバッハ | Cutting tools |
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