JPS6244572A - Surface coated tool - Google Patents
Surface coated toolInfo
- Publication number
- JPS6244572A JPS6244572A JP18328885A JP18328885A JPS6244572A JP S6244572 A JPS6244572 A JP S6244572A JP 18328885 A JP18328885 A JP 18328885A JP 18328885 A JP18328885 A JP 18328885A JP S6244572 A JPS6244572 A JP S6244572A
- Authority
- JP
- Japan
- Prior art keywords
- ticn
- coated
- tin
- tool
- thickness
- 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
Landscapes
- Chemical Vapour Deposition (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は硬質物質を被覆した工具。特に耐摩耗性、耐欠
損性に有効な表面被覆工具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tool coated with a hard material. In particular, it relates to surface-coated tools that are effective in wear resistance and chipping resistance.
WC基超硬合金又サーメット等に硬質物質を被覆して、
耐摩耗性、耐欠損性を向上させる事は従来より行なわれ
てきた。しかし、CVD法(化学蒸着法)による被覆で
は、母材と皮膜の境界に生ずる脱炭層や皮膜粒子の異常
成長などの問題により十分な性能を発揮出来ない。特に
断続切削となるフライス工具では、その傾向が大である
。そこで、フライス用としてはPVD法(物理蒸着法)
が適用されている。しかし、PVD法は密着性に問題が
あり皮膜の利殖、脱落などにより十分な性能を発揮出来
ない。By coating a hard substance on WC-based cemented carbide or cermet,
Improvements in wear resistance and fracture resistance have conventionally been carried out. However, coating by CVD (chemical vapor deposition) cannot exhibit sufficient performance due to problems such as a decarburized layer that forms at the boundary between the base material and the coating and abnormal growth of coating particles. This tendency is particularly strong in milling tools that perform interrupted cutting. Therefore, for milling, PVD method (physical vapor deposition method) is used.
is applied. However, the PVD method has problems with adhesion and cannot exhibit sufficient performance due to build-up and shedding of the film.
本発明は以上の観点より、耐欠損性、特にフライス工具
として使用される場合の機械的衝撃に優れた表面被覆工
具を提供する事を目的とするものである。In view of the above, an object of the present invention is to provide a surface-coated tool that has excellent fracture resistance, particularly mechanical impact resistance when used as a milling tool.
すなわち、本発明は脱炭層の低減、皮膜粒子の異常成長
の防止などの問題がある従来のCVD法に比較して、低
温で被覆が可能なMT−CVD法(中温化学蒸着法)を
適用すること及び皮膜をTiCN及びTiNの多周波f
li 1〜5 μm 、かつ各単層の厚さを2μm以下
とすることによりフライス工具として優れた耐摩耗性、
耐欠損性を確保する事ができるという知見を得たのであ
る。That is, the present invention applies the MT-CVD method (medium temperature chemical vapor deposition method), which allows coating at low temperatures, compared to the conventional CVD method, which has problems such as reducing the decarburized layer and preventing abnormal growth of coating particles. Multi-frequency f of TiCN and TiN
Excellent wear resistance as a milling tool by setting li 1 to 5 μm and the thickness of each single layer to 2 μm or less,
We obtained the knowledge that fracture resistance can be ensured.
本発明は以上の知見に基づいてなされたものであり、T
iCN及びTiNの被覆層は有機CN化合物と4塩化チ
タン及び水素(窒素)間に次のような反応を生じさせ、
その表面に被覆した。The present invention has been made based on the above findings, and T
The iCN and TiN coating layer causes the following reaction between the organic CN compound, titanium tetrachloride and hydrogen (nitrogen),
The surface was coated.
2TiCQ、+2CH1(CN)+3H,→2Ti’(
CN)+6H(ll+2cH,cQ2TiCQ、+N2
+4H,→2TiN+HCl2
蒸着温度は、TiCNは750度、TiNは800度で
行なった。この結果得られたTiCN、TiNの多層皮
膜は、従来のCVD法の皮膜に比較し粒子が微細で、さ
らに皮膜と母材の境界に脱炭層が少ないのが特徴である
。2TiCQ, +2CH1(CN)+3H, →2Ti'(
CN)+6H(ll+2cH,cQ2TiCQ,+N2
+4H,→2TiN+HCl2 The deposition temperature was 750 degrees for TiCN and 800 degrees for TiN. The multilayer coating of TiCN and TiN obtained as a result is characterized by having finer particles and less decarburized layer at the boundary between the coating and the base material compared to coatings made by conventional CVD method.
さらにTiCN、TiN層はその単層の厚さを2μm以
下とするのが望ましく、2μm以上では皮膜の結晶が粗
粒化し靭性が低下し1表面が荒れて凹凸が激しくなり、
プライス工具として欠点となるためである。Furthermore, it is desirable that the single layer thickness of the TiCN or TiN layer be 2 μm or less; if the thickness is more than 2 μm, the crystals of the film will become coarse, the toughness will decrease, and the surface will become rough and uneven.
This is because it is a drawback as a price tool.
また被rII層の厚さを1〜5μmとしたのは1μm以
下では所望の耐摩耗性を維持することができず、一方5
μmを超えた層厚にすると密着性が低下し1機械的衝撃
により剥離しゃすくなるためである。In addition, the reason why the thickness of the rII layer is set to 1 to 5 μm is that if it is less than 1 μm, the desired wear resistance cannot be maintained.
This is because if the layer thickness exceeds .mu.m, the adhesion will decrease and it will be easy to peel off due to mechanical impact.
次に、本発明の表面被覆工具を実施例により具体的に説
明する。Next, the surface-coated tool of the present invention will be specifically explained using examples.
実施例 1
94%WC−6%Go(重量パーセント以下同じ)、超
硬合金(チップ型番SNMA432)上にT i CN
(C/N= 7/ 3) 、 T i N皮膜を交互
に各層1μm、合計4μm被覆した。この試料をAとす
る。同時に比較のため、上記超硬合金上にTiCを4μ
m被覆した。この試料をBとする。これら2種の試料を
旋盤にて以下の切削条件。Example 1 94%WC-6%Go (same weight percentages), TiCN on cemented carbide (chip model number SNMA432)
(C/N=7/3), TiN films were alternately coated with each layer having a thickness of 1 μm and a total thickness of 4 μm. This sample is designated as A. At the same time, for comparison, 4μ of TiC was placed on the above cemented carbide.
m coated. This sample is designated as B. These two types of samples were cut using a lathe under the following cutting conditions.
被削材 S CN440
切削速度 200m/min
送り 0.3mm/rev
切り込み 2mm
にて試験した。比較品の試料Bは15分で摩耗により寿
命に到ったのに対し1本発明による試料Aは30分間の
切削でも良好な切削性能を示した。Work material S CN440 Cutting speed 200 m/min Feed 0.3 mm/rev Depth of cut 2 mm Tested. Sample B, a comparative product, reached the end of its life after 15 minutes due to wear, whereas Sample A according to the present invention showed good cutting performance even after cutting for 30 minutes.
実施例 2
T i CN2cサ−メツh (65%T i CN−
10%WC−10%TaC−15%Ni)を基体としS
NMN4324.−加工シ、MT−CVD法により表1
のような皮膜を被覆した。Example 2 T i CN2c cermet h (65%T i CN-
10%WC-10%TaC-15%Ni) as the base
NMN4324. - Processing, Table 1 by MT-CVD method
It was coated with a film like this.
その試料を6インチカッター(DN型)で断続試験を下
記の条件で行なった。The sample was subjected to an intermittent test using a 6-inch cutter (DN type) under the following conditions.
被削材 SCN440 切削速度 200m/min 送り 0.15mm/刃 切り込み 2mm その結果も表1に示す。Work material SCN440 Cutting speed 200m/min Feed: 0.15mm/blade Cut 2mm The results are also shown in Table 1.
次に送りのみ0.05++n/刃に変更して、寿命試験
を実施した。その結果も表1に示す。Next, a life test was conducted by changing only the feed to 0.05++n/blade. The results are also shown in Table 1.
表1の結果より多層被覆による皮膜の密着性が向上し、
優れた耐摩耗性、耐欠損性を示すことが明らかである。From the results in Table 1, the adhesion of the film by multilayer coating is improved;
It is clear that it exhibits excellent wear resistance and chipping resistance.
上述のように、本発明の表面被覆工具は、多層被覆及び
MT−CVD法を適用する事により優れた耐摩耗性、耐
欠損性を示し、超硬合金は勿論のことサーメットへの被
覆にも適するものである。As mentioned above, the surface-coated tool of the present invention exhibits excellent wear resistance and chipping resistance by applying multilayer coating and MT-CVD method, and is suitable for coating not only cemented carbide but also cermet. It is suitable.
Claims (1)
び、又はTiNを被覆した工具において、その被覆方法
が700〜900℃で行なう化学蒸着法よりなる事を特
徴とする表面被覆工具。 2)特許請求の範囲第1項においてTiCN及びTiN
よりなる被覆層1〜5μmの厚さを設け、その単層の厚
さが2μm以下であって、かつ交互に少なくとも2層以
上被覆されてなる事を特徴とする表面被覆工具。[Claims] 1) A tool in which the surface of a WC-based cemented carbide or cermet is coated with TiCN and/or TiN, characterized in that the coating method is a chemical vapor deposition method carried out at 700 to 900°C. Coated tools. 2) In claim 1, TiCN and TiN
1. A surface-coated tool comprising a coating layer having a thickness of 1 to 5 μm, a single layer having a thickness of 2 μm or less, and at least two or more layers alternately coated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18328885A JPS6244572A (en) | 1985-08-21 | 1985-08-21 | Surface coated tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18328885A JPS6244572A (en) | 1985-08-21 | 1985-08-21 | Surface coated tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6244572A true JPS6244572A (en) | 1987-02-26 |
JPH0433865B2 JPH0433865B2 (en) | 1992-06-04 |
Family
ID=16133029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18328885A Granted JPS6244572A (en) | 1985-08-21 | 1985-08-21 | Surface coated tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6244572A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6451231A (en) * | 1987-08-22 | 1989-02-27 | Sumitomo Electric Industries | Manufacture of coated cutting tool |
JPH0397866A (en) * | 1989-09-08 | 1991-04-23 | Hitachi Tool Eng Ltd | Coated cemented carbide tool |
JPH0397867A (en) * | 1989-09-08 | 1991-04-23 | Hitachi Tool Eng Ltd | Coated wear resistant tool |
JPH03111572A (en) * | 1989-09-26 | 1991-05-13 | Hitachi Tool Eng Ltd | Coated ceramic tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5679048B2 (en) | 2011-04-20 | 2015-03-04 | 株式会社タンガロイ | Coated cutting tool |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5072805A (en) * | 1973-10-31 | 1975-06-16 | ||
JPS5124982A (en) * | 1974-08-24 | 1976-02-28 | Tdk Electronics Co Ltd | Dengensochino anteikakairo |
JPS526695A (en) * | 1975-07-01 | 1977-01-19 | Oriental Yeast Co Ltd | Method of supplying baits to fishes |
JPS5434189A (en) * | 1977-08-22 | 1979-03-13 | Toshiba Tungaloy Co Ltd | Cutting tool provided with coating of multiilayer more than three layers |
JPS5558365A (en) * | 1978-10-27 | 1980-05-01 | Hitachi Metals Ltd | Coating method for titanium compound |
JPS58157965A (en) * | 1982-03-12 | 1983-09-20 | Hitachi Metals Ltd | Multiply coated material and its manufacture |
-
1985
- 1985-08-21 JP JP18328885A patent/JPS6244572A/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5072805A (en) * | 1973-10-31 | 1975-06-16 | ||
JPS5124982A (en) * | 1974-08-24 | 1976-02-28 | Tdk Electronics Co Ltd | Dengensochino anteikakairo |
JPS526695A (en) * | 1975-07-01 | 1977-01-19 | Oriental Yeast Co Ltd | Method of supplying baits to fishes |
JPS5434189A (en) * | 1977-08-22 | 1979-03-13 | Toshiba Tungaloy Co Ltd | Cutting tool provided with coating of multiilayer more than three layers |
JPS5558365A (en) * | 1978-10-27 | 1980-05-01 | Hitachi Metals Ltd | Coating method for titanium compound |
JPS58157965A (en) * | 1982-03-12 | 1983-09-20 | Hitachi Metals Ltd | Multiply coated material and its manufacture |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6451231A (en) * | 1987-08-22 | 1989-02-27 | Sumitomo Electric Industries | Manufacture of coated cutting tool |
JPH0397866A (en) * | 1989-09-08 | 1991-04-23 | Hitachi Tool Eng Ltd | Coated cemented carbide tool |
JPH0397867A (en) * | 1989-09-08 | 1991-04-23 | Hitachi Tool Eng Ltd | Coated wear resistant tool |
JPH03111572A (en) * | 1989-09-26 | 1991-05-13 | Hitachi Tool Eng Ltd | Coated ceramic tool |
JPH0819525B2 (en) * | 1989-09-26 | 1996-02-28 | 日立ツール株式会社 | Method for manufacturing coated ceramic tool |
Also Published As
Publication number | Publication date |
---|---|
JPH0433865B2 (en) | 1992-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |