JPH0453642B2 - - Google Patents
Info
- Publication number
- JPH0453642B2 JPH0453642B2 JP60197402A JP19740285A JPH0453642B2 JP H0453642 B2 JPH0453642 B2 JP H0453642B2 JP 60197402 A JP60197402 A JP 60197402A JP 19740285 A JP19740285 A JP 19740285A JP H0453642 B2 JPH0453642 B2 JP H0453642B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- hard coating
- coating layer
- solid solution
- coated 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
- 239000011247 coating layer Substances 0.000 claims description 16
- 239000010936 titanium Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 11
- 239000006104 solid solution Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 5
- 239000011195 cermet Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910004349 Ti-Al Inorganic materials 0.000 description 3
- 229910004692 Ti—Al Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000007733 ion plating Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- RSAQARAFWMUYLL-UHFFFAOYSA-N tic-10 Chemical compound CC1=CC=CC=C1CN1C(CCN(CC=2C=CC=CC=2)C2)=C2C(=O)N2CCN=C21 RSAQARAFWMUYLL-UHFFFAOYSA-N 0.000 description 1
Description
〔産業上の利用分野〕
この発明は、炭化タングステン（以下WCで示
す）基超硬合金または炭窒化チタン（以下TiCN
で示す）基サーメツトで構成された基体部材の表
面に、耐摩耗性のすぐれた硬質被覆層を蒸着する
ことにより切削寿命の延命化を可能ならしめた表
面被覆切削工具に関するものである。
〔従来の技術〕
従来、一般に、WC基超硬合金やTiCN基サー
メツトで構成された基体部材の表面に、Tiの炭
化物、窒化物、および炭窒化物（以下、それぞれ
TiC，TiN、およびTiCNで示し、かつこれを総
称してTiの炭・窒化物という）のうちの１種の
単層または２層以上の複層からなる硬質被覆層を
化学蒸着法（CVD法）や物理蒸着法（PVD法）
などを用いて、0.5〜10μmの平均層厚で蒸着して
なる表面被覆切削工具が知られている。
〔発明が解決しようとする問題点〕
一方、近年の切削機械の自動化および省力化に
伴ない、切削工具にも一段の使用寿命の延命化が
要求されるようになつているが、上記の従来表面
被覆切削工具は、特に硬質被覆層の耐摩耗性が十
分でないために、これらの要求に満足に対応する
ことができないのが現状である。
〔問題点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切削工具に着目し、特に
これの硬質被覆層の耐摩耗性向上をはかるべく研
究を行なつた結果、従来表面被覆切削工具の硬質
被覆層を構成するTiの炭・窒化物にAlを固溶さ
せて、それぞれTiとAlの複合炭化物固溶体、複
合窒化物固溶体、および複合炭窒化物固溶体（以
下、それぞれ（Ti，Al）Ｃ，（Ti，Al）Ｎ、お
よび（Ti，Al）・CNで示し、かつこれを総称し
てTiとAlの複合炭・窒化物固溶体という）とす
ると、これらのTiとAlの複合炭・窒化物固溶体
で構成された硬質被覆層は、Alの固溶によつて
耐熱性、高温硬さ、および耐熱塑性変形性が一段
と向上し、切削に際してすぐれた耐摩耗性を示
し、切削寿命の延命化を可能にするという研究結
果を得たのである。
この発明は、上記研究結果にもとづいてなされ
たものであつて、
WC基超硬合金またはTiCN基サーメツトで構
成された基体部材の表面に，（Ti，Al）Ｃ，（Ti，
Al）Ｎ、および（Ti，Al）CNのうちの１種の単
層または２種以上の被覆からなる硬質被覆層を、
CVD法やPVD法などを用いて、0.5〜10μmの平
均層厚で蒸着してなる耐摩耗性のすぐれた表面被
覆切削工具に特徴を有するものである。
なお、この発明の表面被覆切削工具において、
硬質被覆層の平均層厚を0.5〜10μmと限定したの
は、その層厚が0.5μm未満では所望の耐摩耗性向
上効果が得られず、一方その層厚が10μmを越え
ると切刃部分に欠けやチツピングが発生し易くな
るという理由によるものである。
〔実施例〕
つぎに、この発明の表面被覆切削工具を実施例
により具体的に説明する。
実施例 １
基体部分として、重量％で、WC−９％Co−８
％TiC−10％TaCからなる組成を有するWC基超
硬合金、並びにTiCN−12％Co−８％Mo−６％
Ni−15％WC−10％TaCからなる組成を有する
TiCN基サーメツトで構成され、かつJIS・
SNGN432に則した形状を有する切削チツプを用
意し、この切削チツプを公知のイオンプレーテイ
ング装置内に装入し、またこの装置内に置かれた
るつぼ内にはTi−Al合金（Al：20％含有）を入
れ、この状態で、まず装置内の真空度を５×10-5
torrの雰囲気とすると共に、切削チツプを500℃
に加熱し、ついで切削チツプに−1000Vの電位を
かけ、装置内にArガスを流通させて切削チツプ
の表面を十分に洗浄した後、Ar脱気し、引続い
てるつぼ内のTi−Al合金に電子ビームを照射し
て、これを溶融し、蒸発させ、同時に切削チツプ
への負荷電位を−700Vとすると共に、N2およ
び／またはC2H2（アセチレン）からなる反応ガス
を200c.c.／minの割合で流して、切削チツプの表
面にそれぞれ第１表に示される組成および平均層
厚を有する単層または複層の硬質被覆層を蒸着さ
せることにより本発明表面被覆切削工具１〜１１
を製造した。
また、比較の目的で、イオンプレーテイング装
置のるつぼ内に装入されるTi−Al合金に代つて、
Tiを用いる以外は同一の条件で、同じく第１表
に示される組成および平均層厚を有する単層また
は複層の硬質被覆層を蒸着することにより従来表
面被覆切削工具１〜８をそれぞれ製造した。
つぎに、この結果得られた各種の表面被覆切削
工具について、
被削材：SNCM439（硬さ：HB240）の丸棒、
切削速度：180ｍ／min
送り：0.3mm／rev.、
切込み：２mm
切削時間：20min、
の条件で鋼の連続切削試験、並びに、
被削材：SNCM439（硬さ：HB290）の角材、
切削速度：150ｍ／min、
送り：0.3mm／rev.、
切込み：３mm、
[Industrial Application Field] The present invention is applicable to tungsten carbide (hereinafter referred to as WC)-based cemented carbide or titanium carbonitride (hereinafter referred to as TiCN).
This invention relates to a surface-coated cutting tool whose cutting life can be extended by depositing a hard coating layer with excellent wear resistance on the surface of a base member made of base cermet. [Prior Art] Conventionally, Ti carbides, nitrides, and carbonitrides (hereinafter, respectively
A hard coating layer consisting of a single layer or two or more layers of TiC, TiN, and TiCN, collectively referred to as Ti carbon/nitride, is deposited using chemical vapor deposition (CVD). ) and physical vapor deposition method (PVD method)
A surface-coated cutting tool is known, which is formed by vapor-depositing a layer with an average layer thickness of 0.5 to 10 μm. [Problems to be solved by the invention] On the other hand, with the automation and labor saving of cutting machines in recent years, cutting tools are required to have a further extended service life. Currently, surface-coated cutting tools cannot satisfactorily meet these demands, especially because the hard coating layer does not have sufficient wear resistance. [Means for Solving the Problems] Therefore, from the above-mentioned viewpoint, the present inventors focused on the above-mentioned conventional surface-coated cutting tools, and in particular aimed at improving the wear resistance of the hard coating layer thereof. As a result of our research, we found that by dissolving Al in the Ti carbon/nitride that constitutes the hard coating layer of conventional surface-coated cutting tools, we created a composite carbide solid solution of Ti and Al, a composite nitride solid solution, and a composite carbon solid solution, respectively. Nitride solid solution (hereinafter referred to as (Ti, Al)C, (Ti,Al)N, and (Ti,Al)・CN, respectively, and collectively referred to as a composite carbon/nitride solid solution of Ti and Al) Therefore, the hard coating layer composed of these composite carbon/nitride solid solutions of Ti and Al has further improved heat resistance, high temperature hardness, and thermoplastic deformation resistance due to the solid solution of Al, and is difficult to cut during cutting. Research has shown that it exhibits excellent wear resistance and can extend cutting life. This invention was made based on the above research results, and includes (Ti, Al)C, (Ti,
A hard coating layer consisting of a single layer or a coating of two or more of Al)N and (Ti, Al)CN,
It is characterized by surface-coated cutting tools with excellent wear resistance, which are deposited using CVD or PVD to have an average layer thickness of 0.5 to 10 μm. In addition, in the surface-coated cutting tool of this invention,
The reason why the average layer thickness of the hard coating layer is limited to 0.5 to 10 μm is that if the layer thickness is less than 0.5 μm, the desired effect of improving wear resistance cannot be obtained, whereas if the layer thickness exceeds 10 μm, the cutting edge portion This is because chipping and chipping are more likely to occur. [Example] Next, the surface-coated cutting tool of the present invention will be specifically explained with reference to Examples. Example 1 WC-9%Co-8 in weight% as the base part
WC-based cemented carbide with a composition consisting of %TiC-10%TaC, and TiCN-12%Co-8%Mo-6%
Has a composition consisting of Ni-15% WC-10% TaC
Constructed of TiCN-based cermet and JIS/
A cutting chip with a shape conforming to SNGN432 is prepared, and this cutting chip is loaded into a known ion plating device. A Ti-Al alloy (Al: 20%) is placed in a crucible placed in this device. (containing), and in this state, first reduce the vacuum level inside the device to 5×10 -5
In addition to the torr atmosphere, the cutting chips were heated to 500℃.
Then, a potential of -1000V is applied to the cutting chip, Ar gas is passed through the device, the surface of the cutting chip is sufficiently cleaned, Ar is degassed, and the Ti-Al alloy in the crucible is heated. is irradiated with an electron beam to melt and evaporate it. At the same time, the load potential to the cutting tip is set to -700V, and a reactive gas consisting of N 2 and/or C 2 H 2 (acetylene) is irradiated with 200 c.c. The surface-coated cutting tools 1 to 1 of the present invention are formed by depositing a single or multilayer hard coating layer having the composition and average layer thickness shown in Table 1 on the surface of the cutting chip by flowing at a rate of ./min. 11
was manufactured. Also, for comparison purposes, instead of the Ti-Al alloy charged in the crucible of the ion plating device,
Conventional surface-coated cutting tools 1 to 8 were each manufactured by depositing a single or multilayer hard coating layer having the composition and average layer thickness also shown in Table 1 under the same conditions except for using Ti. . Next, regarding the various surface-coated cutting tools obtained as a result, work material: SNCM439 (hardness: H B 240) round bar, cutting speed: 180 m/min, feed: 0.3 mm/rev., depth of cut: 2 mm. Cutting time: 20 min, Continuous cutting test on steel under the following conditions, Work material: SNCM439 (hardness: H B 290) square material, Cutting speed: 150 m/min, Feed: 0.3 mm/rev., Depth of cut: 3 mm ,
【表】
切削時間：3min、
の条件で鋼の断続切削試験をそれぞれ行ない、前
者の連続切削試験では、切刃の逃げ面摩耗幅とす
くい面摩耗深さを測定し、また後者の断続切削試
験では、10個の試験切刃のうちの欠損発生数を測
定した。これらの測定結果を第１表に示した。
実施例 ２
基体部材として、上記実施例１で用いたと同じ
組成を有するWC基超硬合金で構成され、かつ直
径：６mm×長さ：50mmの寸法をもつた２枚刃エ
ンドミルを用意し、これを実施例１で用いたと同
じイオンプレーテイング装置に装入し、硬質被覆
層形成時の２枚刃エンドミルへの負荷電位を−
300Vとする以外は、実施例１におけると同一の
条件で、２枚刃エンドミルの表面に、それぞれ第
２表に示される組成および平均層厚を有する単層
または複層の硬質被覆層を蒸着することにより本
発明表面被覆切削工具Ａ〜Ｄおよび従来表面被覆
切削工具Ａ〜Ｄをそれぞれ製造した。[Table] Intermittent cutting tests on steel were conducted under the conditions of cutting time: 3 min, and in the former continuous cutting test, the flank wear width and rake face wear depth of the cutting edge were measured, and in the latter interrupted cutting test. Then, we measured the number of defects among the 10 test cutting edges. The results of these measurements are shown in Table 1. Example 2 As a base member, a two-flute end mill made of WC-based cemented carbide having the same composition as used in Example 1 and having dimensions of 6 mm in diameter and 50 mm in length was prepared. was charged into the same ion plating apparatus used in Example 1, and the load potential to the two-flute end mill during the formation of the hard coating layer was set to -
A single or multilayer hard coating layer having the composition and average layer thickness shown in Table 2 was deposited on the surface of the two-blade end mill under the same conditions as in Example 1 except for the voltage of 300V. In this way, surface-coated cutting tools A to D of the present invention and conventional surface-coated cutting tools A to D were manufactured, respectively.
第１表に示される結果から、本発明表面被覆切
削工具１〜１１は、従来表面被覆切削工具１〜８
に比して、これを構成する硬質被覆層が耐摩耗性
にすぐれているので、断続切削で同等の耐欠損性
を示した上で、連続切削では一段とすぐれた耐摩
耗性を示し、使用寿命の延命化がはかれることが
明らかであり、このことは第２表における本発明
表面被覆切削工具Ａ〜Ｄと従来表面被覆切削工具
Ａ〜Ｄとの比較からも明らかである。
上述のように、この発明の表面被覆切削工具
は、その表面に蒸着された硬質被覆層が従来表面
被覆切削工具を構成する硬質被覆層に比して一段
とすぐれた耐摩耗性を有するので、長期に亘つて
すぐれた切削性能を発揮し、長い使用寿命を示す
など工業上有用な特性を有するのである。
From the results shown in Table 1, the surface-coated cutting tools 1 to 11 of the present invention are different from the conventional surface-coated cutting tools 1 to 8.
The hard coating layer that makes up this material has excellent wear resistance, so while it shows the same chipping resistance in interrupted cutting, it shows even better wear resistance in continuous cutting, extending its service life. It is clear that the life of the cutting tools can be extended, and this is also clear from the comparison of the surface-coated cutting tools A to D of the present invention and the conventional surface-coated cutting tools A to D in Table 2. As mentioned above, the surface-coated cutting tool of the present invention has a hard coating layer deposited on its surface that has superior wear resistance compared to the hard coating layer that constitutes conventional surface-coated cutting tools, so it can be used for a long period of time. It has industrially useful properties such as excellent cutting performance over a long period of time and a long service life.
Claims (1)
タン基サーメツトで構成された基体部材の表面
に、TiとAlの複合炭化物固溶体、複合窒化物固
溶体、および複合炭窒化物固溶体のうちの１種の
単層または２種以上の複層からなる平均層厚：
0.5〜10μmの硬質被覆層を蒸着してなる耐摩耗性
のすぐれた表面被覆切削工具。1 A single layer of one of a composite carbide solid solution of Ti and Al, a composite nitride solid solution, and a composite carbonitride solid solution is formed on the surface of a base member made of a tungsten carbide-based cemented carbide or a titanium carbonitride-based cermet. Or average layer thickness consisting of two or more types of multilayers:
Surface-coated cutting tools with excellent wear resistance made by vapor-depositing a hard coating layer of 0.5 to 10 μm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60197402A JPS6256565A (en) | 1985-09-06 | 1985-09-06 | Surface coated hard member having superior wear resistance |
| JP5199168A JP2699815B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated end mill with excellent wear resistance |
| JP5199169A JP2699816B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated indexable insert with excellent wear resistance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60197402A JPS6256565A (en) | 1985-09-06 | 1985-09-06 | Surface coated hard member having superior wear resistance |
| JP5199169A JP2699816B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated indexable insert with excellent wear resistance |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5199168A Division JP2699815B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated end mill with excellent wear resistance |
| JP5199169A Division JP2699816B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated indexable insert with excellent wear resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6256565A JPS6256565A (en) | 1987-03-12 |
| JPH0453642B2 true JPH0453642B2 (en) | 1992-08-27 |
Family
ID=26510346
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60197402A Granted JPS6256565A (en) | 1985-09-06 | 1985-09-06 | Surface coated hard member having superior wear resistance |
| JP5199169A Expired - Lifetime JP2699816B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated indexable insert with excellent wear resistance |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5199169A Expired - Lifetime JP2699816B2 (en) | 1985-09-06 | 1993-07-16 | Surface-coated indexable insert with excellent wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JPS6256565A (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784641B2 (en) * | 1987-04-23 | 1995-09-13 | 日新製鋼株式会社 | Decorative panel building material |
| AT394680B (en) * | 1988-02-03 | 1992-05-25 | Boehler Gmbh | LINE CUTTING KNIFE FOR THE PROCESSING OF FLAT MATERIAL |
| JP2540905B2 (en) * | 1988-03-29 | 1996-10-09 | 三菱マテリアル株式会社 | Surface coated cutting tool made of hard material |
| JPH02311211A (en) * | 1989-05-26 | 1990-12-26 | Kobe Steel Ltd | Cemented carbide drill |
| JP2580330B2 (en) * | 1989-06-14 | 1997-02-12 | 神鋼コベルコツール株式会社 | Wear resistant coating |
| KR930010710B1 (en) * | 1989-09-29 | 1993-11-08 | 스미토모 일렉트릭 인더스트리즈, 엘티디. | Surface-coated hard member for cutting and abrasion resistant tools |
| JPH04103755A (en) * | 1990-08-23 | 1992-04-06 | Sumitomo Metal Mining Co Ltd | Surface coated steel product and its production |
| JP2650098B2 (en) * | 1992-03-04 | 1997-09-03 | 株式会社神戸製鋼所 | High Mn nonmagnetic steel cutting tool |
| JPH0634818B2 (en) * | 1992-04-09 | 1994-05-11 | 大 山岡 | Device provided with a film of Ti-Al-N composition |
| JPH0711459A (en) * | 1993-06-22 | 1995-01-13 | Hitachi Tool Eng Ltd | Coated cermet alloy |
| JP2999346B2 (en) * | 1993-07-12 | 2000-01-17 | オリエンタルエンヂニアリング株式会社 | Substrate surface coating method and coating member |
| JP2793772B2 (en) * | 1994-05-13 | 1998-09-03 | 神鋼コベルコツール株式会社 | Hard film coated tools and hard film coated members with excellent adhesion |
| JP3866305B2 (en) † | 1994-10-27 | 2007-01-10 | 住友電工ハードメタル株式会社 | Composite high hardness material for tools |
| JP3031907B2 (en) | 1998-03-16 | 2000-04-10 | 日立ツール株式会社 | Multilayer coating member |
| US6492011B1 (en) * | 1998-09-02 | 2002-12-10 | Unaxis Trading Ag | Wear-resistant workpiece and method for producing same |
| CN1280047C (en) * | 2001-10-30 | 2006-10-18 | 三菱综合材料神户工具株式会社 | Surface coated cemeted carbide cutting tool having hard coating layer exhibiting excellent wear resisitance in high speed machining |
| WO2004000494A1 (en) | 2002-06-25 | 2003-12-31 | Mitsubishi Materials Corporation | Coated cutting tool member |
| JP4413958B2 (en) | 2007-08-31 | 2010-02-10 | ユニオンツール株式会社 | Hard coating for cutting tools |
| JP4440980B2 (en) | 2008-01-31 | 2010-03-24 | ユニオンツール株式会社 | Hard coating for cutting tools |
| WO2013121827A1 (en) * | 2012-02-16 | 2013-08-22 | ユケン工業株式会社 | Hard coating film and target for forming hard coating film |
| CN103962816B (en) * | 2013-01-31 | 2018-01-02 | 三菱综合材料株式会社 | Surface-coated cutting tool and its manufacture method |
| CN105177388B (en) * | 2015-08-31 | 2017-11-24 | 重庆妙坤生物科技有限责任公司 | A kind of Hardmetal materials |
| JP6765361B2 (en) | 2017-10-18 | 2020-10-07 | ユニオンツール株式会社 | Hard coatings and drills for cutting tools |
| JP7183522B2 (en) * | 2018-01-04 | 2022-12-06 | 三菱マテリアル株式会社 | A surface-coated cutting tool with a hard coating layer that exhibits excellent chipping resistance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51151277A (en) * | 1975-06-20 | 1976-12-25 | Sumitomo Electric Ind Ltd | A coated super hard alloy |
| JPS5295580A (en) * | 1976-02-09 | 1977-08-11 | Mitsubishi Heavy Ind Ltd | Treatment of metal surface |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542150A (en) * | 1978-09-21 | 1980-03-25 | Fedders Corp | Strip tension control system for protecting tube with fin |
| JPS5662961A (en) * | 1979-10-26 | 1981-05-29 | Mitsubishi Metal Corp | Surface coated sintered hard alloy member for cutting tool |
| JPS5864377A (en) * | 1981-10-12 | 1983-04-16 | Nachi Fujikoshi Corp | Surface coated tool and its production |
| JPH0453642A (en) * | 1990-06-21 | 1992-02-21 | Asahi Chem Ind Co Ltd | Manufacture of lenticular lens metal mold |
-
1985
- 1985-09-06 JP JP60197402A patent/JPS6256565A/en active Granted
-
1993
- 1993-07-16 JP JP5199169A patent/JP2699816B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51151277A (en) * | 1975-06-20 | 1976-12-25 | Sumitomo Electric Ind Ltd | A coated super hard alloy |
| JPS5295580A (en) * | 1976-02-09 | 1977-08-11 | Mitsubishi Heavy Ind Ltd | Treatment of metal surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6256565A (en) | 1987-03-12 |
| JP2699816B2 (en) | 1998-01-19 |
| JPH06210502A (en) | 1994-08-02 |
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