JPH03120352A - Surface coated super hard member for cutting or wear resistant tool - Google Patents
Surface coated super hard member for cutting or wear resistant toolInfo
- Publication number
- JPH03120352A JPH03120352A JP25449189A JP25449189A JPH03120352A JP H03120352 A JPH03120352 A JP H03120352A JP 25449189 A JP25449189 A JP 25449189A JP 25449189 A JP25449189 A JP 25449189A JP H03120352 A JPH03120352 A JP H03120352A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- coating layer
- tin
- base material
- wear
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 50
- 239000011247 coating layer Substances 0.000 claims abstract description 41
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 8
- 150000004767 nitrides Chemical class 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910010037 TiAlN Inorganic materials 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000007733 ion plating Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 238000005240 physical vapour deposition Methods 0.000 description 7
- 229910010038 TiAl Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Physical 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、切削工具又は耐摩工具の表面に被覆層を設け
、耐摩耗性を改善向上させた切削・耐摩工具用表面被覆
超硬部材に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a surface-coated carbide member for cutting and wear-resistant tools, which has improved wear resistance by providing a coating layer on the surface of the cutting tool or wear-resistant tool. .
従来、切削工具や耐摩工具の材質は、炭化タングステン
（ｗＣ）基等の超硬合金、炭化チタン（Ｔｉｅ）系等の
各種サーメット、高速度工具鋼等の鋼や硬質合金、炭化
珪素や窒化珪素等のセラミックスが主であった。Conventionally, the materials used for cutting tools and wear-resistant tools include cemented carbide such as tungsten carbide (wC), various cermets such as titanium carbide (Tie), steel and hard alloys such as high-speed tool steel, silicon carbide and silicon nitride. The main products were ceramics such as
又、切削工具や耐摩工具の耐摩耗性を改善向上させるた
めにその全表面又は切刃部分の表面上に１物理気相蓋着
法（ＰＶＤ法）や化学気相蒸着法（ＯＶＤ法）により、
チタ＞ （Ｔｉ） 、／％ ７ ニウム（Ｈｆ）、ジル
コニウム（Ｚｒ）の炭化物、窒化物又は炭窒化物、若し
くはアルミニウム（Ａｌ）の酸化物等を単層又は複層に
形成した表面被覆硬質部材が開発され、最近では広く実
用に供されている。特に、ＰＶＤ法で形成した被覆層を
有する切削工具や耐摩工具は、母材強度の劣化なしに耐
摩耗性を向上できるため、ドリル、エンドミル、フライ
ス切削用スローアウェイチップ等の強度を要求される切
削用途に適している。In addition, in order to improve the wear resistance of cutting tools and wear-resistant tools, it is possible to coat the entire surface or the surface of the cutting edge with a physical vapor deposition method (PVD method) or chemical vapor deposition method (OVD method). ,
Titanium> (Ti), /% 7 A surface-coated hard member formed with a single layer or multiple layers of carbides, nitrides, or carbonitrides of nium (Hf), zirconium (Zr), or oxides of aluminum (Al), etc. has been developed and has recently been put into widespread use. In particular, cutting tools and wear-resistant tools that have a coating layer formed by the PVD method can improve wear resistance without degrading the strength of the base material, so they are required to be strong for drills, end mills, indexable inserts for milling, etc. Suitable for cutting applications.
しかし、ＰＶＤ法が母材強度の劣化なしに被覆層を形成
出来る点でｃｖｎ法より優れているとは云え、ＰＶＤ法
では母材上にｋｌの酸化物を安定して被覆することが困
難であるためＡｌ酸化物の被覆層は実用化に至っておら
ず、現状のＰＶＤ法で形成できるＴｉ、Ｈｆ、Ｚｒの炭
化物、窒化物、炭窒化物等の被覆層では特に高速切削で
の耐摩耗性が不足するため早期に寿命に至るものが多か
った。However, although the PVD method is superior to the CVN method in that it can form a coating layer without degrading the strength of the base material, it is difficult to stably coat the KL oxide on the base material with the PVD method. Therefore, coating layers of Al oxide have not been put to practical use, and coating layers of carbides, nitrides, carbonitrides, etc. of Ti, Hf, and Zr that can be formed using the current PVD method have poor wear resistance, especially during high-speed cutting. Many of them reached the end of their lifespans early due to a lack of.
本発明はかかる従来の事情に鑑み、切削工具や耐摩工具
の母材強度を維持し、同時に耐摩耗性に優れた被！層に
より、特に高速切削において従来よりも耐摩耗性が改善
された切削・耐摩工具用表面被覆超硬部材を提供するこ
とを目的とする。In view of such conventional circumstances, the present invention has been developed to maintain the strength of the base material of cutting tools and wear-resistant tools, and at the same time provide a coating with excellent wear resistance. It is an object of the present invention to provide a surface-coated carbide member for cutting and wear-resistant tools, which has improved wear resistance compared to conventional layers, especially in high-speed cutting.
上記目的を達成するため、本発明の切削・耐摩工具用表
面被覆超硬部材においては、切削工具又は耐摩工具から
なる母材と、母材の表面に直接形成したＴｉＮの第１被
覆層と、第１被覆層上に形成したＴｉとｋｌの窒化物か
らなる第２被覆層とを備えており、更に必要に応じて第
２被ＷＪＷ上にＴｉＮからなる第３被覆層を有すること
を特徴とする。In order to achieve the above object, the surface-coated carbide member for cutting and wear-resistant tools of the present invention includes a base material made of a cutting tool or a wear-resistant tool, a first coating layer of TiN formed directly on the surface of the base material, A second coating layer made of Ti and kl nitride formed on the first coating layer, and further comprising a third coating layer made of TiN on the second WJW as necessary. do.
ここで、ＴｉとＡｔの窒化物とは、ＴｉＡＩＮに限られ
ず、一般式（Ｔｉ、 ｋｌ ）Ｎ （式中０（ｘ≦０
．５）で表１”Ｘ Ｘ
わされる全ての窒化物を意味する。Here, the nitride of Ti and At is not limited to TiAIN, but has the general formula (Ti, kl )N (0(x≦0
．． 5) means all the nitrides listed in Table 1"X
尚、これら第１〜第３被覆層は切削工具又は耐摩工具の
全表面に設けても良いし、切刃部分の表面にのみ設けて
も良い。又、被覆層の形成方法は従来公知の方法を利用
出来るが、スパッタリング法、イオンブレーティング法
等のＰＶＤ法が母材強度を容易に維持できる点で好まし
い。Note that these first to third coating layers may be provided on the entire surface of the cutting tool or the wear-resistant tool, or may be provided only on the surface of the cutting edge portion. Although conventionally known methods can be used to form the coating layer, PVD methods such as sputtering and ion blasting are preferred because the strength of the base material can be easily maintained.
本発明において、第１被覆層として母材表面上に直接形
成されるＴｉＮは第２被覆層であるＴｉとＡｌの窒化物
（Ｔｉ Ａｔ ）Ｎよりも母材との密着強１−Ｘ
Ｘ
度に優れている。そして第１被器層上に第・２被器層と
して形成される（Ｔｉ Ａｌ ）ＮはＴｉＮよりも硬
１−Ｘ Ｘ
度が若干低いが、耐摩耗性と耐溶着性がＴｉＮよりも遥
かに優れている。従って、かかる第１被覆層と第２被覆
層を有する本発明の表面被覆超硬部材は、切削工具又は
耐摩工具として使用すると、低速切削は勿論高速切削に
おいても耐摩耗性、耐溶着性、耐欠損性に優れ、長期に
亘って優れた切削性能を示す。In the present invention, TiN, which is formed directly on the surface of the base material as the first coating layer, has a stronger adhesion with the base material of 1-X than the second coating layer, which is a nitride of Ti and Al (Ti At )N.
Excellent in X degrees. The (TiAl)N formed as the second covering layer on the first covering layer has a slightly lower hardness than TiN, but its wear resistance and welding resistance are much higher than that of TiN. Excellent. Therefore, when the surface-coated carbide member of the present invention having such a first coating layer and a second coating layer is used as a cutting tool or a wear-resistant tool, it exhibits wear resistance, adhesion resistance, and resistance not only in low-speed cutting but also in high-speed cutting. It has excellent chipping resistance and shows excellent cutting performance over a long period of time.
又、第３被覆層としてＴｉＮを第２被覆層上に設ければ
、ＴｉＮが第２被覆層の（Ｔｉ ｋｌ ）Ｎよりもｔ
＋ｘ ｘ
硬度が高いため、初期耐摩耗性を向上させることができ
、又特にドリル、エンドミル等の低速切削における耐摩
耗性を改善できる。Moreover, if TiN is provided as the third coating layer on the second coating layer, TiN has a higher t than (Ti kl )N of the second coating layer.
+x x Since the hardness is high, initial wear resistance can be improved, and especially wear resistance in low-speed cutting with drills, end mills, etc. can be improved.
尚、各被覆層の層厚に関して、第１被覆層ＴｉＮの層厚
はｏ、ｉμｍ未満ではＴｉＮと母材との密着強度が向上
せず、２．０μｍを超えると耐摩耗性が低下してくるの
で、０．１〜２．０μのが好ましい。第２被覆層（Ｔｉ
１−ｘＡ４Ｘ） Ｎの層厚は１．０μｍ未満では耐摩耗
性が不足し、５．０μｍを超えると層中の残留応力が大
きくなって密着強度が低下するので、１、Ｑ〜５．０μ
ｍの範囲が好ましい。第３被覆層ＴｉＮの層厚は、０．
５μｍ未満ではその効果が認められず、２．０μｍを超
えると第２被覆層の効果が減少するので、０．５〜２．
０μｍが好ましい。Regarding the layer thickness of each coating layer, if the layer thickness of the first coating layer TiN is less than 0.1 μm, the adhesion strength between TiN and the base material will not improve, and if it exceeds 2.0 μm, the wear resistance will decrease. Therefore, it is preferably 0.1 to 2.0μ. Second coating layer (Ti
1-x A4
A range of m is preferred. The layer thickness of the third coating layer TiN is 0.
If the thickness is less than 5 μm, the effect will not be observed, and if it exceeds 2.0 μm, the effect of the second coating layer will be reduced.
0 μm is preferable.
母材として、組成が、０Ｓ規格Ｐ３０ （具体的にはＷ
Ｏ−２０ｗｔ％Ｔｉｃ！−１０ｗｔ％ｃｏ）、形状が同
ＳＮＧ ４３２の超硬合金製切削チップを用意し、その
表面に下記ノ如＜ｇ空’ｙ’−り放電を用いたイオンブ
レーティング法により、下記第２表に示す被覆層を形成
して本発明例の被覆切削チップ試料とした。As the base material, the composition is 0S standard P30 (specifically W
O-20wt%Tic! A cutting tip made of cemented carbide having the same shape as SNG 432 and having the same shape as SNG 432 was prepared, and the surface was coated with the ion blating method using empty discharge as shown in Table 2 below. A coated cutting chip sample of an example of the present invention was prepared by forming a coating layer shown in FIG.
即ち、成膜装置内に上記切削チップと、ターゲットとし
てＴｉと、ＴｉＡ７又は’ｒｉ Ａｊを装着した。That is, the cutting tip, Ti as a target, and TiA7 or 'ri Aj were installed in the film forming apparatus.
この状態で、成膜装置内を真空度Ｉ Ｘ １０−”ｔｏ
ｒｒのＡｒガス雰囲気に保ち、切削チップに−２０００
Ｖの電圧をかけて洗浄を行ない、５００ Ｃ’まで加熱
した後、Ａｒガスを排気した。次に、成膜装置内にＮガ
スを３００ ｃｃ／ｍｉｎの割合で導入しながら、真空
アーク放電によりＴｉターゲットを蒸発、イオン化させ
て、切削チップ表面に第１被覆層としてＴｉＮを被覆し
た。その後Ｔｉターゲットの蒸発を停止させ、ＴｉＡｌ
又はＴｉ Ａｌターゲットを蒸発、イオン化させて第１
被覆層上に第２被覆層としてＴＩＡＩＮ又はＴｉ、Ａｌ
Ｎを形成した。ＴｉＡｌ又はＴｉＡ、／ターゲットの蒸
発を停止させた後、更に幾っがの試料には上記と同様に
Ｔｉターゲットを蒸発、イオン化させて第２被覆層上に
第３被覆層としてＴｉＮを形成した。In this state, the vacuum level inside the film forming apparatus is I
Maintain the Ar gas atmosphere at rr and apply -2000 to the cutting tip.
After cleaning by applying a voltage of V and heating to 500 C', the Ar gas was exhausted. Next, while introducing N gas into the film forming apparatus at a rate of 300 cc/min, the Ti target was evaporated and ionized by vacuum arc discharge to coat the surface of the cutting tip with TiN as a first coating layer. After that, the evaporation of the Ti target is stopped, and the TiAl
Or evaporate and ionize the TiAl target to
TIAIN or Ti, Al as a second coating layer on the coating layer
N was formed. After stopping the evaporation of the TiAl or TiA target, Ti targets were further evaporated and ionized in the same manner as described above to form TiN as a third coating layer on the second coating layer.
又比較のために、上記と同一の成膜装置を使用して真空
アーク放電を用いたイオンブレーティング法により、同
じ組成と形状の切削チップの表面上にＴｉｃ！、 Ｔｉ
Ｎ、 ＴｉＣＮを組合せてなる被覆層を形成することに
より、下記第２表に示す従来例の被覆切削チップ試料を
製造した。尚、通常のＯＶＤ法により、同じ組成と形状
の切削チップの表面上に下記第２表に示すＴｉｅ、 Ａ
ＩＯ等の被覆層を形成した被覆切削チップ試料も用意し
た。For comparison, Tic! was deposited on the surface of a cutting tip with the same composition and shape using the same film-forming equipment as above and using the ion blating method using vacuum arc discharge. , Ti
Conventional coated cutting chip samples shown in Table 2 below were manufactured by forming a coating layer consisting of a combination of N and TiCN. In addition, Tie, A shown in Table 2 below was applied on the surface of a cutting tip with the same composition and shape by the normal OVD method.
A coated cutting chip sample on which a coating layer such as IO was formed was also prepared.
得られた被覆層を有する各被覆切削チップ試料について
、下記第１表の条件による速読切削試験と断続切削試験
を行なって切刃の逃げ面摩耗幅を測定し、結果を第２表
に併せて表示した。For each coated cutting chip sample having the obtained coating layer, a speed reading cutting test and an intermittent cutting test were conducted under the conditions shown in Table 1 below to measure the flank wear width of the cutting edge, and the results are summarized in Table 2. It was displayed.
第 １ 表
上記の結果から、本発明例の被覆切削チップ試料は、連
続切削及び断続切削の両方において、優れた耐摩耗性と
耐欠損性を兼ね備え、従来例のものよりも優れた切削性
能を示すことが判る。Table 1 From the above results, the coated cutting tip sample of the present invention has excellent wear resistance and chipping resistance in both continuous cutting and interrupted cutting, and has better cutting performance than the conventional example. You can see what is shown.
本発明によれば、低速切削は勿論高速切削においても充
分な耐摩耗性と優れた耐欠損性を兼ね備え、長期に亘っ
て優れた切削性能を持続しうる切削・耐摩工具用表面被
覆超硬部材を提供することが出来る。According to the present invention, there is provided a surface-coated carbide member for cutting and wear-resistant tools that has sufficient wear resistance and excellent chipping resistance not only in low-speed cutting but also in high-speed cutting, and can maintain excellent cutting performance over a long period of time. can be provided.
手続補正書（自発） Ｌ事件の表示 平成 １ 年特 許 ｍ 第２５４４９１ 号 ＆ 補正をする者 事件との関係Procedural amendment (voluntary) Display of L incident 1999 Special Permit No. 254491 & person making corrections Relationship with the incident
Claims (2)
面に直接形成したＴｉＮからなる第１被覆層と、第１被
覆層上に形成したＴｉとＡｌの窒化物からなる第２被覆
層とを備えた切削・耐摩工具用表面被覆超硬部材。(1) A base material made of a cutting tool or a wear-resistant tool, a first coating layer made of TiN formed directly on the surface of the base material, and a second coating made of nitrides of Ti and Al formed on the first coating layer. A surface-coated carbide member for cutting and wear-resistant tools with a layer.
設けたことを特徴とする、請求項（１）の切削・耐摩工
具用表面被覆超硬部材。(2) The surface-coated carbide member for a cutting/wear-resistant tool according to claim (1), further comprising a third coating layer made of TiN on the second coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25449189A JPH03120352A (en) | 1989-09-29 | 1989-09-29 | Surface coated super hard member for cutting or wear resistant tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25449189A JPH03120352A (en) | 1989-09-29 | 1989-09-29 | Surface coated super hard member for cutting or wear resistant tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120352A true JPH03120352A (en) | 1991-05-22 |
Family
ID=17265792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25449189A Pending JPH03120352A (en) | 1989-09-29 | 1989-09-29 | Surface coated super hard member for cutting or wear resistant tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120352A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04201002A (en) * | 1990-11-28 | 1992-07-22 | Mitsubishi Materials Corp | Cutting tool made of surface-coated thermet |
| DE4408250A1 (en) * | 1993-07-12 | 1995-01-19 | Oriental Engineering Co | Process for coating the surface of a substrate and coating material |
| JP2007229919A (en) * | 2007-04-10 | 2007-09-13 | Oc Oerlikon Balzers Ag | Tool having protection layer system |
| WO2007111301A1 (en) * | 2006-03-28 | 2007-10-04 | Kyocera Corporation | Surface-coated tool |
| JP2015160270A (en) * | 2014-02-27 | 2015-09-07 | 新日鐵住金株式会社 | Cemented carbide tool and manufacturing method of the same |
-
1989
- 1989-09-29 JP JP25449189A patent/JPH03120352A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04201002A (en) * | 1990-11-28 | 1992-07-22 | Mitsubishi Materials Corp | Cutting tool made of surface-coated thermet |
| DE4408250A1 (en) * | 1993-07-12 | 1995-01-19 | Oriental Engineering Co | Process for coating the surface of a substrate and coating material |
| DE4408250C2 (en) * | 1993-07-12 | 2001-06-13 | Oriental Engineering Co | Surface layer system for substrates |
| WO2007111301A1 (en) * | 2006-03-28 | 2007-10-04 | Kyocera Corporation | Surface-coated tool |
| JP2007229919A (en) * | 2007-04-10 | 2007-09-13 | Oc Oerlikon Balzers Ag | Tool having protection layer system |
| JP2015160270A (en) * | 2014-02-27 | 2015-09-07 | 新日鐵住金株式会社 | Cemented carbide tool and manufacturing method of the same |
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