JP3109272B2 - Surface coated titanium carbonitride based cermet cutting tool with excellent fracture and wear resistance - Google Patents
Surface coated titanium carbonitride based cermet cutting tool with excellent fracture and wear resistanceInfo
- Publication number
- JP3109272B2 JP3109272B2 JP04227874A JP22787492A JP3109272B2 JP 3109272 B2 JP3109272 B2 JP 3109272B2 JP 04227874 A JP04227874 A JP 04227874A JP 22787492 A JP22787492 A JP 22787492A JP 3109272 B2 JP3109272 B2 JP 3109272B2
- Authority
- JP
- Japan
- Prior art keywords
- titanium carbonitride
- based cermet
- cutting tool
- carbonitride
- cutting
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば鋼の高速断続
切削に用いた場合にすぐれた耐欠損性を示し、かつ鋼の
高速連続切削でも一段とすぐれた耐摩耗性を発揮する表
面被覆炭窒化チタン（以下、ＴｉＣＮで示す）基サーメ
ット製切削工具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface-coated carbonitriding material exhibiting excellent fracture resistance when used, for example, in high-speed interrupted cutting of steel and exhibiting more excellent wear resistance even in high-speed continuous cutting of steel. The present invention relates to a cutting tool made of cermet based on titanium (hereinafter, referred to as TiCN).
【０００２】[0002]
【従来の技術】従来、一般に、例えば特開昭５４−１１
７５１０号公報に記載される通り、ＴｉＣＮ基サーメッ
ト基体や、結合相形成成分としてのＣｏやＮｉなどの含
有量が基体内部に比して相対的に高い表面部、すなわち
結合相富化表面部を有するＴｉＣＮ基サーメット基体の
表面に、化学蒸着法や物理蒸着法を用いて、いずれも粒
状結晶組織を有する、Ｔｉの炭化物、窒化物、炭窒化
物、炭酸化物、および炭窒酸化物、さらにＴｉとＡｌの
複合窒化物、ＴｉとＺｒの複合炭窒化物、ＴｉとＨｆの
複合炭窒化物、および酸化アルミニウム〔以下、それぞ
れＴｉＣ，ＴｉＮ，ＴｉＣＮ，ＴｉＣＯ，ＴｉＣＮＯ、
およびＡｌ2 Ｏ3 で示す〕のうちの１種の単層または２
種以上の複層からなる硬質被覆層を０．５〜２０μｍの
平均層厚で形成してなる表面被覆ＴｉＣＮ基サーメット
製切削が、例えば鋼や鋳鉄の連続切削や断続切削に用い
られていることは良く知られるところである。2. Description of the Related Art Conventionally, generally, for example, Japanese Patent Application Laid-Open No. 54-11 / 1979
As described in Japanese Patent No. 7510, a TiCN-based cermet substrate and a surface portion having a relatively high content of Co or Ni as a binder phase forming component as compared with the inside of the substrate, that is, a binder phase-enriched surface portion, are used. Using a chemical vapor deposition method or a physical vapor deposition method, the surface of a TiCN-based cermet substrate having a titanium carbide, nitride, carbonitride, carbonate, and carbonitride, each having a granular crystal structure, And Al composite nitride, Ti and Zr composite carbonitride, Ti and Hf composite carbonitride, and aluminum oxide [hereinafter, TiC, TiN, TiCN, TiCO, TiCNO,
And Al 2 O 3 ].
Cutting of a surface-coated TiCN-based cermet formed by forming a hard coating layer composed of at least two or more layers with an average layer thickness of 0.5 to 20 μm is used for continuous cutting or interrupted cutting of steel or cast iron, for example. Is well known.
【０００３】[0003]
【発明が解決しようとする課題】一方、近年の切削機械
の高性能化および切削加工の省力化はめざましく、これ
に伴ない切削加工は年々高速化の傾向にあるが、上記の
従来表面被覆ＴｉＣＮ基サーメット製切削工具は、これ
を例えば鋼や鋳鉄の高速切削に用いると、断続切削では
切削開始後短時間で切刃に欠損が発生するので実用に供
することができず、また連続切削では相対的に摩耗進行
が速く、比較的短時間で使用寿命に至るのが現状であ
る。On the other hand, in recent years, high performance of cutting machines and labor saving of cutting work have been remarkable, and cutting work tends to be accelerated year by year. If a cutting tool made of base cermet is used for high-speed cutting of steel or cast iron, for example, in intermittent cutting, the cutting edge will be broken shortly after the start of cutting, so it cannot be used practically. At present, wear progresses rapidly and the service life is reached in a relatively short time.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明者等は、
上述のような観点から、上記の従来表面被覆ＴｉＣＮ基
サーメット製切削工具に着目し、これの耐欠損性と耐摩
耗性の向上をはかるべく研究を行なった結果、一般に、
例えば化学蒸着法により硬質被覆層としてのＴｉＣＮ層
を形成するに際しては、 反応ガス組成；容量％で、ＴｉＣｌ4 ：１〜５％、ＣＨ
4 ：５〜７％、Ｎ2 ：２０〜３０％、Ｈ2 ：残り、 反応温度：９５０〜１０５０℃、 雰囲気圧力：５０〜２００トル、 の条件で行なわれ、形成されたＴｉＣＮ層は上記した通
り粒状結晶組織をもつのが通常であるが、ＴｉＣＮ層の
形成条件を、相対的に反応温度を低くして、反応ガス組
成をかえた条件、すなわち、 反応ガス組成；容量％で、ＴｉＣｌ4 ：１〜４％、ＣＨ
3 ＣＮ：０．１〜１％、Ｎ2 ：０〜２５％、Ｈ2 ：残
り、 反応温度：８００〜９００℃、 雰囲気圧力：３０〜２００トル、 の条件にすると、結晶構造が縦長成長結晶組織のＴｉＣ
Ｎ層が形成されるようになり、この縦長成長結晶組織を
もったＴｉＣＮ層が硬質被覆層中に少なくとも１層存在
すると、この結果の表面被覆ＴｉＣＮ基サーメット製切
削工具は、高速断続切削ですぐれた耐欠損性を示し、か
つ高速連続切削でも一段とすぐれた耐摩耗性を発揮する
という研究結果を得たのである。Means for Solving the Problems Accordingly, the present inventors have
In view of the above, the above-mentioned conventional surface-coated TiCN-based cermet cutting tool has been focused on, and as a result of researching to improve the fracture resistance and wear resistance thereof, generally,
For example, when a TiCN layer as a hard coating layer is formed by a chemical vapor deposition method, a reaction gas composition; TiCl 4 : 1 to 5% by volume, CH
4: 5~7%, N 2: 20~30%, H 2: remainder, reaction temperature: 950 to 1050 ° C., atmospheric pressure: 50 to 200 Torr, carried out in conditions, the formed TiCN layer above Although to have a street granular crystal structure is generally the conditions for forming the TiCN layer, by lowering the relatively reaction temperature, conditions for changing the reaction gas composition, i.e., the reaction gas composition; in volume%, TiCl 4 : 1 to 4%, CH
3 CN: 0.1~1%, N 2 : 0~25%, H 2: remainder, reaction temperature: 800 to 900 ° C., atmospheric pressure: 30 to 200 Torr, when the conditions, the crystal structure is vertically grown crystal TiC of organization
When an N layer is formed and at least one TiCN layer having this elongated growth crystal structure is present in the hard coating layer, the resulting surface-coated TiCN-based cermet cutting tool is excellent in high-speed interrupted cutting. The research results show that it has excellent fracture resistance and exhibits even better wear resistance even in high-speed continuous cutting.
【０００５】この発明は、上記の研究結果にもとづいて
なされたものであって、ＴｉＣＮ基サーメット基体、ま
たは結合相富化表面部を有するＴｉＣＮ基サーメット基
体の表面に、いずれも結晶構造が粒状結晶組織のＴｉ
Ｃ，ＴｉＮ，ＴｉＣＮ，ＴｉＣＯ，ＴｉＣＮＯ、および
Ａｌ2 Ｏ3 のうちのいずれか、または２種以上で構成さ
れた複層からなる硬質被覆層を０．５〜２０μｍの平均
層厚で形成してなる表面被覆ＴｉＣＮ基サーメット製切
削工具において、上記硬質被覆層のうちの少なくとも１
層をＴｉＣＮで構成し、かつこのＴｉＣＮ層のうちの少
なくとも１層を縦長成長結晶組織を有する結晶構造とし
てなる耐欠損性および耐摩耗性にすぐれた表面被覆Ｔｉ
ＣＮ基サーメット製切削工具に特徴を有するものであ
る。The present invention has been made on the basis of the above-mentioned research results, and the crystal structure of the TiCN-based cermet substrate or the surface of the TiCN-based cermet substrate having a binder-phase-enriched surface portion has a granular structure. Organization Ti
C, TiN, TiCN, TiCO, TiCNO, and one of Al 2 O 3, or the hard coating layer consisting of multiple layers that are composed of two or more to form an average layer thickness of 0.5~20μm A cutting tool made of a surface-coated TiCN-based cermet comprising at least one of the hard coating layers.
A layer composed of TiCN, and at least one of the TiCN layers having a crystal structure having a vertically-grown crystal structure, a surface-coated Ti having excellent fracture resistance and wear resistance.
It is characterized by a CN-based cermet cutting tool.
【０００６】なお、この発明の切削工具において、硬質
被覆層の平均層厚を０．５〜２０μｍと定めたのは、そ
の層厚が０．５μｍ未満では、硬質被覆層によってもた
らされる所望のすぐれた耐摩耗性を確保することができ
ず、一方その層厚が２０μｍを越えると切刃にチッピン
グ（微小欠け）が発生し易くなるという理由によるもの
である。[0006] In the cutting tool of the present invention, the average thickness of the hard coating layer is set to 0.5 to 20 µm because if the layer thickness is less than 0.5 µm, the desired superiority provided by the hard coating layer is obtained. This is because the abrasion resistance cannot be ensured, and on the other hand, when the layer thickness exceeds 20 μm, chipping (minute chipping) tends to occur on the cutting edge.
【０００７】[0007]
【実施例】つぎに、この発明の表面被覆ＴｉＣＮ基サー
メット製切削工具を実施例により具体的に説明する。原
料粉末として、いずれも１〜３μｍの範囲内の所定の平
均粒径を有するＴｉＣＮ粉末、ＴｉＣ粉末、ＴｉＮ粉
末、ＴａＣ粉末、ＮｂＣ粉末、ＷＣ粉末、Ｍｏ2 Ｃ粉
末、ＺｒＣ粉末、Ｃｏ粉末、およびＮｉ粉末を用い、こ
れら原料粉末を表１に示される配合組成に配合し、ボー
ルミルで７２時間湿式混合し、乾燥した後、この混合粉
末を圧粉体にプレス成形し、ついでこの圧粉体の１部
を、１０-2トルの真空中、１４５０〜１５００℃の範囲
内の所定温度に１時間保持の条件で真空焼結することに
より結合相富化表面部の形成がないＴｉＣＮ基サーメッ
ト基体Ａ〜Ｄを製造し、また上記圧粉体の残りには、焼
結温度までの昇温過程を１０-2トルの真空雰囲気とし、
１４５０〜１５５０℃の範囲内の所定の焼結温度に到達
後は雰囲気を１０トルのＮ2 雰囲気として１時間保持
し、焼結温度からの冷却を１０-1トルの真空中で行なう
焼結を施すことにより、同じく表１に示される最大結合
相含有量と厚さの結合相富化表面部を有するＴｉＣＮ基
サーメット基体Ｅ，Ｆをそれぞれ製造した。なお、この
結果得られたＴｉＣＮ基サーメット基体Ａ〜Ｆは、いず
れもＩＳＯ・ＣＮＭＧ１２０４０８の切削チップ形状を
もつものであるNext, a cutting tool made of a surface-coated TiCN-based cermet according to the present invention will be described in detail with reference to examples. As raw material powders, both TiCN powder having a predetermined average particle size in the range of 1 to 3 [mu] m, TiC powder, TiN powder, TaC powder, NbC powder, WC powder, Mo 2 C powder, ZrC powder, Co powder, and Using Ni powder, these raw material powders were blended into the blending composition shown in Table 1, wet-mixed for 72 hours with a ball mill, dried, and then press-molded into a green compact. One part is vacuum-sintered at a predetermined temperature in the range of 1450 to 1500 ° C. for 1 hour in a vacuum of 10 −2 Torr to form a TiCN-based cermet substrate A having no binder phase-enriched surface portion ~ D, and the rest of the green compact is heated up to the sintering temperature in a vacuum atmosphere of 10 -2 Torr,
After reaching a predetermined sintering temperature within the range of 1450 to 1550 ° C., the atmosphere is maintained at 10 torr N 2 atmosphere for 1 hour, and the sintering is performed by cooling from the sintering temperature in a vacuum of 10 -1 torr. By applying the same, TiCN-based cermet substrates E and F having a binder phase-enriched surface portion having the same maximum binder phase content and thickness as shown in Table 1 were produced, respectively. The TiCN-based cermet bases A to F obtained as a result all have a cutting tip shape of ISO • CNMG120408.
【０００８】ついで、上記ＴｉＣＮ基サーメット基体Ａ
〜Ｆの表面に、通常の化学蒸着装置を用い、粒状結晶組
織の硬質被覆層を形成する場合には表２に示される条件
とし、また縦長成長結晶組織のＴｉＣＮ層を形成する場
合の条件を、 反応ガス組成；容量％で、ＴｉＣｌ4 ：１．５％、ＣＨ
3 ＣＮ：０．５％、Ｎ2 ：２５％、Ｈ2 ：残り、 反応温度：８６０℃、 雰囲気圧力：５０トル、 とし、それぞれ表３，４に示される組成、結晶構造、お
よび平均層厚の硬質被覆層を形成することにより本発明
表面被覆ＴｉＣＮ基サーメット製切削工具（以下、本発
明被覆切削工具という）１〜１２をそれぞれ製造した。Next, the TiCN-based cermet substrate A
To the surface of F, the conditions shown in Table 2 were used when forming a hard coating layer having a granular crystal structure using a normal chemical vapor deposition apparatus, and the conditions when forming a TiCN layer having a vertically elongated crystal structure were used. Reaction gas composition; TiCl 4 : 1.5% by volume, CH
3 CN: 0.5%, N 2 : 25%, H 2 : residual, reaction temperature: 860 ° C., atmospheric pressure: 50 torr, and the composition, crystal structure, and average layer thickness shown in Tables 3 and 4, respectively. By forming the hard coating layer, cutting tools 1 to 12 made of a surface-coated TiCN-based cermet of the present invention (hereinafter, referred to as coated cutting tools of the present invention) were manufactured.
【０００９】さらに、同じく表２に示される通常の条件
で上記ＴｉＣＮ基サーメット基体Ａ〜Ｆの表面に表４，
５に示される組成および平均層厚を有し、かついずれも
粒状結晶組織の硬質被覆層を形成することにより従来表
面被覆ＴｉＣＮ基サーメット製切削工具（以下、従来被
覆切削工具という）１〜１２をそれぞれ製造した。Further, the surface of the TiCN-based cermet substrates A to F under the ordinary conditions also shown in Table 2
By forming a hard coating layer having a composition and an average layer thickness shown in No. 5 and having a granular crystal structure, cutting tools made of a conventional surface-coated TiCN-based cermet (hereinafter referred to as conventional coated cutting tools) 1 to 12 are formed. Each was manufactured.
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
【表２】 [Table 2]
【００１２】[0012]
【表３】 [Table 3]
【００１３】[0013]
【表４】 [Table 4]
【００１４】[0014]
【表５】 [Table 5]
【００１５】[0015]
【表６】 [Table 6]
【００１６】つぎに、この結果得られた各種の被覆切削
工具について、 被削材：ＳＣＭ４４０の丸棒、 切削速度：２５０ｍ／min.、 送り：０．２mm／rev.、 切込み：１mm、 切削時間：３０分、 の条件での鋼の湿式高速連続切削試験、 被削材：ＳＮＣＭ４３９の４本縦溝入り丸棒、 切削速度：２００ｍ／min.、 送り：０．２mm／rev.、 切込み：１mm、 の条件での鋼の乾式高速断続切削試験を行ない、上記連
続切削試験では切刃の逃げ面摩耗幅を測定し、また上記
断続切削試験では欠損が原因で使用寿命に至るまでの切
削時間を測定した。これらの測定結果を表６に示した。Next, for the various coated cutting tools obtained as a result, work material: round bar of SCM440, cutting speed: 250 m / min., Feed: 0.2 mm / rev., Cutting depth: 1 mm, cutting time. : 30 minutes, wet high-speed continuous cutting test of steel under the following conditions: Work material: round bar with four longitudinal grooves of SNCM439, cutting speed: 200 m / min., Feed: 0.2 mm / rev., Depth of cut: 1 mm In the above continuous cutting test, the flank wear width of the cutting edge was measured, and in the above-mentioned intermittent cutting test, the cutting time until the end of the service life due to chipping was measured. It was measured. Table 6 shows the measurement results.
【００１７】また、図１および２には、本発明被覆切削
工具２および従来被覆切削工具２の表面部縦断面の走査
電子顕微鏡による結晶構造写真（倍率：５０００倍）を
示した。FIGS. 1 and 2 show photographs of the crystal structures (magnification: 5000 times) of the longitudinal section of the surface of the coated cutting tool 2 of the present invention and the conventional coated cutting tool 2 by a scanning electron microscope.
【００１８】[0018]
【発明の効果】表１〜６および図１，２に示される結果
から、硬質被覆層のうちの少なくとも１層をＴｉＣＮ層
で構成し、かつこのＴｉＣＮ層のうちの少なくとも１層
を縦長成長結晶組織を有するＴｉＣＮ層で構成した本発
明被覆切削工具１〜１２は、硬質被覆層がいずれも粒状
結晶組織を有する従来被覆切削工具１〜１２に比して、
高速連続切削では一段とすぐれた耐摩耗性を示し、さら
に高速断続切削ではすぐれた耐欠損性を示し、長時間に
亘ってすぐれた切削性能を発揮することが明らかであ
る。From the results shown in Tables 1 to 6 and FIGS. 1 and 2, at least one of the hard coating layers is composed of a TiCN layer, and at least one of the TiCN layers is formed of a vertically grown crystal. The coated cutting tools 1 to 12 of the present invention composed of a TiCN layer having a structure, compared to the conventional coated cutting tools 1 to 12 each having a hard coating layer having a granular crystal structure,
It is clear that high-speed continuous cutting shows more excellent wear resistance, and high-speed intermittent cutting shows better fracture resistance, and exhibits excellent cutting performance over a long period of time.
【００１９】上述のように、この発明の表面被覆ＴｉＣ
Ｎ基サーメット製切削工具は、高速連続切削および高速
断続切削で、それぞれすぐれた耐摩耗性および耐欠損性
を示し、長期に亘ってすぐれた切削性能を発揮するの
で、切削加工の高速化に十分満足に対応することができ
るものである。As mentioned above, the surface coated TiC of the present invention
N-base cermet cutting tools show excellent wear and fracture resistance in high-speed continuous cutting and high-speed interrupted cutting, respectively, and exhibit excellent cutting performance over a long period of time. It can respond to satisfaction.
【図１】本発明被覆切削工具２の表面部縦断面の走査電
子顕微鏡による結晶構造写真である。FIG. 1 is a photograph of a crystal structure of a longitudinal section of a surface portion of a coated cutting tool 2 of the present invention taken by a scanning electron microscope.
【図２】従来被覆切削工具２の表面部縦断面の走査電子
顕微鏡による結晶構造写真である。FIG. 2 is a crystal structure photograph of a longitudinal section of the surface of a conventional coated cutting tool 2 taken by a scanning electron microscope.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長田 晃 茨城県結城郡石下町大字古間木1511番地 三菱マテリアル株式会社 筑波製作所 内 (72)発明者 田中 徹也 茨城県結城郡石下町大字古間木1511番地 三菱マテリアル株式会社 筑波製作所 内 (72)発明者 中村 清一郎 茨城県結城郡石下町大字古間木1511番地 三菱マテリアル株式会社 筑波製作所 内 (56)参考文献 特開 平２−311202（ＪＰ，Ａ) 特開 平６−8008（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C23C 16/00 - 16/56 C23C 14/00 - 14/58 B23P 15/28 B23B 27/17 C23C 28/04 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Nagata 1511 Furamagi, Ishishita-cho, Yuki-gun, Ibaraki Prefecture Inside the Tsukuba Works, Mitsubishi Materials Corporation (72) Inventor Tetsuya Tanaka 1511 Furamaki, Ishishita-cho, Yuki-gun, Ibaraki Prefecture Mitsubishi Materials Corporation Tsukuba Works (72) Inventor Seiichiro Nakamura 1511 Komaki, Ishishita-cho, Yuki-gun, Ibaraki Pref. Mitsubishi Materials Corporation Tsukuba Works (56) References JP-A-2-311202 (JP, A) JP Hei 6-8008 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C23C 16/00-16/56 C23C 14/00-14/58 B23P 15/28 B23B 27/17 C23C 28/04
Claims (2)
に、いずれも粒状結晶組織を有する、Ｔｉの炭化物、窒
化物、炭窒化物、炭酸化物、および炭窒酸化物、並びに
酸化アルミニウムのうちのいずれか、または２種以上で
構成された複層からなる硬質被覆層を０．５〜２０μｍ
の平均層厚で形成してなる表面被覆炭窒化チタン基サー
メット製切削工具において、 上記硬質被覆層のうちの少なくとも１層を炭窒化チタン
で構成し、かつこの炭窒化チタン層のうちの少なくとも
１層を縦長成長結晶組織としたことを特徴とする耐欠損
性および耐摩耗性にすぐれた表面被覆炭窒化チタン基サ
ーメット製切削工具。1. A titanium carbide, nitride, carbonitride, carbonitride, carbonitride, and aluminum oxide, each of which has a granular crystal structure on the surface of a titanium carbonitride-based cermet substrate. Or a hard coating layer composed of multiple layers composed of two or more
A cutting tool made of a surface-coated titanium carbonitride-based cermet formed with an average layer thickness of at least one of the hard coating layers made of titanium carbonitride, and at least one of the titanium carbonitride layers. A cutting tool made of a surface-coated titanium carbonitride-based cermet having excellent fracture resistance and wear resistance, characterized in that the layer has a vertically elongated crystal structure.
して相対的に高い表面部を有する炭窒化チタン基サーメ
ット基体の表面に、いずれも粒状結晶組織を有する、Ｔ
ｉの炭化物、窒化物、炭窒化物、炭酸化物、および炭窒
酸化物、並びに酸化アルミニウムのうちのいずれか、ま
たは２種以上で構成された複層からなる硬質被覆相を
０．５〜２０μｍの平均層厚で形成してなる表面被覆炭
窒化チタン基サーメット製切削工具において、 上記硬質被覆相のうちの少なくとも１層を炭窒化チタン
で構成し、かつこの炭窒化チタン層のうちの少なくとも
１層を縦長成長結晶組織としたことを特徴とする耐欠損
性および耐摩耗性にすぐれた表面被覆炭窒化チタン基サ
ーメット製切削工具。2. Titanium carbonitride-based cermet substrate having a surface portion in which the content of a binder phase forming component is relatively high as compared with the inside of the substrate, each of which has a granular crystal structure.
a hard coating phase composed of a multilayer composed of any one of carbides, nitrides, carbonitrides, carbonates, and carbonitrides of i, or aluminum oxide, or 0.5 to 20 μm A cutting tool made of a surface-coated titanium carbonitride-based cermet formed with an average layer thickness of at least one of the hard coating phases made of titanium carbonitride, and at least one of the titanium carbonitride layers. A cutting tool made of a surface-coated titanium carbonitride-based cermet having excellent fracture resistance and wear resistance, characterized in that the layer has a vertically elongated crystal structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04227874A JP3109272B2 (en) | 1992-08-04 | 1992-08-04 | Surface coated titanium carbonitride based cermet cutting tool with excellent fracture and wear resistance |
| US08/073,328 US5436071A (en) | 1990-01-31 | 1993-06-08 | Cermet cutting tool and process for producing the same |
| US08/408,691 US5589223A (en) | 1990-01-31 | 1995-03-21 | Process for producing cermet cutting tools having both longitudinal and granular crystal structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04227874A JP3109272B2 (en) | 1992-08-04 | 1992-08-04 | Surface coated titanium carbonitride based cermet cutting tool with excellent fracture and wear resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0649646A JPH0649646A (en) | 1994-02-22 |
| JP3109272B2 true JP3109272B2 (en) | 2000-11-13 |
Family
ID=16867703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04227874A Expired - Lifetime JP3109272B2 (en) | 1990-01-31 | 1992-08-04 | Surface coated titanium carbonitride based cermet cutting tool with excellent fracture and wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3109272B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154880A (en) * | 2015-09-08 | 2015-12-16 | 上海应用技术学院 | Preparation process of TiCN multilayer composite coating layer on slotting cutter surface of steam turbine rotor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146697A (en) * | 1999-03-02 | 2000-11-14 | Kennametal Inc. | MT CVD process |
| JP5440352B2 (en) * | 2010-04-16 | 2014-03-12 | 三菱マテリアル株式会社 | Surface coated cutting tool |
-
1992
- 1992-08-04 JP JP04227874A patent/JP3109272B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154880A (en) * | 2015-09-08 | 2015-12-16 | 上海应用技术学院 | Preparation process of TiCN multilayer composite coating layer on slotting cutter surface of steam turbine rotor |
| CN105154880B (en) * | 2015-09-08 | 2018-01-26 | 上海应用技术学院 | Turbo rotor groove milling cutter surface TiCN multi-layer composite coatings preparation technologies |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649646A (en) | 1994-02-22 |
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