JPS63318985A - Production of edge tool - Google Patents
Production of edge toolInfo
- Publication number
- JPS63318985A JPS63318985A JP15687087A JP15687087A JPS63318985A JP S63318985 A JPS63318985 A JP S63318985A JP 15687087 A JP15687087 A JP 15687087A JP 15687087 A JP15687087 A JP 15687087A JP S63318985 A JPS63318985 A JP S63318985A
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- titanium
- layer
- base material
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 33
- 238000005520 cutting process Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 12
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 8
- 238000005121 nitriding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 208000019300 CLIPPERS Diseases 0.000 description 4
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 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 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Dry Shavers And Clippers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電気かみそり、ヘヤーカッター、庭木バリカ
ン等に用いられる刃物の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing cutlery used in electric razors, hair cutters, garden tree clippers, and the like.
（従来技術）
例えば電気かみそりなどに使用される刃は、一般に次の
ような方法により製造されている。まず、第４図（ａ）
に示されるように、炭素工具鋼、ステンレス鋼などの母
材１０１を型１０２によって絞り加工し、その後焼入を
行う。そして、同図（ｂ）に示されるように砥石１０３
等で研削を行うことにより、刃先部１０４を形成する。(Prior Art) Blades used, for example, in electric shavers are generally manufactured by the following method. First, Figure 4(a)
As shown in FIG. 1, a base material 101 made of carbon tool steel, stainless steel, etc. is drawn using a die 102, and then hardened. Then, as shown in the same figure (b), the grindstone 103
The cutting edge portion 104 is formed by grinding with a grinding tool or the like.
さらに、このような刃先エツジの耐摩耗性や耐食性を向
上させるため、同表面に、窒化チタン（Ｔｉ Ｎ） 、
炭化チタン（ＴＩ Ｃ）等のイオン化合物をスパッタリ
ング等によりコーティングし、第４図（Ｃ）に示される
ような硬化Ｗ１１’ ０５を形成する手段がとられてい
る（例えば特開昭６１−４８３９２号公報参照）。Furthermore, in order to improve the wear resistance and corrosion resistance of the cutting edge, titanium nitride (TiN),
A method has been taken in which an ionic compound such as titanium carbide (TIC) is coated by sputtering or the like to form a hardened W11'05 as shown in FIG. (see official bulletin).
ところが、上記のような方法の場合には、母材１０１で
ある鋼材を直接研削するため、同研削時に刃先部１０４
に第５図に示されるようなだれ１０６やかえりが発生し
、また、発生しなくても微小な曲面１０７が形成される
。しかも、上記コーティングによってこれらのだれ１０
６や曲面１０７が増大するので、切れ味が悪くなる欠点
があった。However, in the case of the above method, since the steel material that is the base material 101 is directly ground, the cutting edge portion 104 is
A sag 106 or burr as shown in FIG. 5 occurs, and even if no sag 106 or burr occurs, a minute curved surface 107 is formed. Moreover, the above coating reduces these 10
6 and the curved surface 107 increase, there is a drawback that the sharpness deteriorates.
（発明の目的）
本発明は上記事情に鑑み、研削時にかえりやだれがほと
んど発生せず、刃先のエツジが鋭利で耐摩耗性および耐
食性に優れた刃物の製造方法を提供することを目的とす
る。(Objective of the Invention) In view of the above circumstances, an object of the present invention is to provide a method for manufacturing a cutlery that hardly generates burrs or sag during grinding, has a sharp cutting edge, and has excellent wear resistance and corrosion resistance. .
（発明の構成）
本発明は、鋼からなる母材の表面に純チタンまたはチタ
ン合金を接合した素材を生成し、この素材を加工して切
刃部を形成し、この切刃部に窒化処理を施して窒化チタ
ンからなる硬化層を生成した後、同切刃部を研削するも
のである。(Structure of the Invention) The present invention produces a material in which pure titanium or titanium alloy is bonded to the surface of a base material made of steel, processes this material to form a cutting edge, and nitrides the cutting edge. After applying this process to produce a hardened layer made of titanium nitride, the cutting edge portion is ground.
このような構成によれば、表面に窒化チタンからなる硬
化層が形成された状態で研削が行なわれるので、研削に
よるかえりやだれが低減し、鋭利な刃先エツジを得るこ
とができる。According to this configuration, since grinding is performed with a hardened layer made of titanium nitride formed on the surface, burrs and sag due to grinding are reduced, and a sharp cutting edge can be obtained.
（実施例）
本発明方法の第１実施例として、電気かみそりの外刃を
形成する方法を第１図（ａ ） （ｂ ） ’（ｃ
）（ｄ）に基づいて説明する。(Example) As a first example of the method of the present invention, a method for forming an outer blade of an electric razor is shown in FIGS.
) (d).
電気かみそりの外刃は非常に薄く、従って強度の高いも
のが要求されるので、母材に使用する鋼は、マルテンサ
イト系のステンレス鋼のように焼入ができて強度の高い
ものが望ましく、しかも絞り加工を行うため絞り性の良
いものが望ましい。The outer blade of an electric shaver is very thin and therefore requires high strength, so the steel used for the base material is preferably one that can be hardened and has high strength, such as martensitic stainless steel. Moreover, since drawing is performed, it is desirable that the material has good drawability.
そこで当実施例では、焼入硬度が高く、強度の高い高炭
素のマルテンサイト系ステンレス鋼を内層１とし、絞り
性の良い低炭素のマルテンサイト系ステンレス鋼を外層
２とする３層構造の母材３を使用している。Therefore, in this example, the matrix has a three-layer structure in which the inner layer 1 is made of high-carbon martensitic stainless steel with high quenching hardness and high strength, and the outer layer 2 is made of low-carbon martensitic stainless steel with good drawability. Material 3 is used.
この母材の表面に、チタンまたはＴｉ −ＡΩ系等のチ
タン合金（例えばＴ１−６％ＡΩ−４％Ｖ（バナジウム
）など）を熱間圧延や鍛接等により接合してチタン層４
とし、これによって第１図（ａ）に示されるような５層
構造の索材５を形成する。そして、この素材５を絞り型
により絞り加工し、これによって、第１図（ｂ）に示さ
れるような外刃の予備成形部分（切刃部）６を形成する
。Titanium or a titanium alloy such as Ti-AΩ system (for example, T1-6%AΩ-4%V (vanadium), etc.) is bonded to the surface of this base material by hot rolling, forge welding, etc. to form a titanium layer 4.
As a result, a rope material 5 having a five-layer structure as shown in FIG. 1(a) is formed. Then, this material 5 is drawn using a drawing die, thereby forming a preformed portion (cutting edge portion) 6 of the outer cutter as shown in FIG. 1(b).
この状態から焼入および窒化処理を行い、チタン層４を
窒化することにより、第１図（ｂ）に示されるような窒
化チタンからなる硬化層４′を形成する。上記焼入は、
真空炉内において素材５を高温に保持し、その後、はぼ
常温の空気の導入で急冷することにより行う。また、上
記窒化処理については、アンモニアガス雰囲気内で素材
５を高温に保持すればよく、これによってチタン層４の
窒化を行うことができる。From this state, hardening and nitriding are performed to nitride the titanium layer 4, thereby forming a hardened layer 4' made of titanium nitride as shown in FIG. 1(b). The above quenching is
This is carried out by keeping the material 5 at a high temperature in a vacuum furnace, and then rapidly cooling it by introducing air at approximately room temperature. Further, regarding the above-mentioned nitriding treatment, it is sufficient to maintain the material 5 at a high temperature in an ammonia gas atmosphere, and thereby the titanium layer 4 can be nitrided.
このようにして硬化層４′が形成された予備成形部分６
において、第１図（ｂ）に一点鎖線で示される位置まで
研削を行うことにより、同図（Ｃ）に示されるような刃
先エツジ７が形成され、同図（ｄ）に示されるような外
刃８が形成される。この研削の際、素材５の表面には予
め硬化層４′が形成されているので、だれやかえり等の
発生はほとんどなく、非常に鋭利で、しかも耐摩耗性お
よび耐食性に優れた刃先エツジ７が形成されることとな
る。Preformed portion 6 with hardened layer 4' formed in this way
By grinding to the position shown by the dashed line in Fig. 1(b), the cutting edge 7 as shown in Fig. 1(C) is formed, and the outer edge as shown in Fig. 1(d) is formed. A blade 8 is formed. During this grinding, since a hardened layer 4' is previously formed on the surface of the material 5, there is almost no occurrence of droop or burrs, and the cutting edge 7 is extremely sharp and has excellent wear and corrosion resistance. will be formed.
次に、第２実施例として、バリカンの刃を形成する方法
を第２図（ａ）（ｂ）（ｃ）（ｄ）に基づいて説明する
。Next, as a second embodiment, a method for forming a clipper blade will be described based on FIGS. 2(a), (b), (c), and (d).
ここでは、同図（ａ）に示されるように、ステンレス鋼
からなる母材３の片面にチタン層４が形成された素材５
を用いる。この素材５に、打抜き等の加工を施して同図
（ｂ）に示されるような切刃部９を形成し、その後焼入
および窒化処理を行う。これによって、切刃部９の下面
には窒化チタンからなる硬化層４′が形成される。そし
て、この状態から切刃部９の側面９ａおよび底面９ｂを
研削することにより、同図（ｃ）（ｄ）に示されるよう
な刃先エツジ１０を形成する。Here, as shown in FIG. 3(a), a material 5 has a titanium layer 4 formed on one side of a base material 3 made of stainless steel.
Use. This material 5 is subjected to a process such as punching to form a cutting edge portion 9 as shown in FIG. 2(b), and then hardened and nitrided. As a result, a hardened layer 4' made of titanium nitride is formed on the lower surface of the cutting edge 9. From this state, the side surface 9a and bottom surface 9b of the cutting edge portion 9 are ground to form a cutting edge 10 as shown in FIGS.
このようにバリカン等の刃を形成する場合にも、先に窒
化処理を施して硬化層４′を形成し、その後に研削を行
うことにより、かえりやだれのほとんどない鋭利な刃先
エツジ１ｏを得ることができる。When forming the blade of a hair clipper or the like in this way, a sharp cutting edge 1o with almost no burrs or droop can be obtained by first performing nitriding to form a hardened layer 4' and then grinding. be able to.
なお、上記窒化チタンからなる硬化層４′は、高度は鋼
の３倍以上と優れて高いものであるが、脆い性質があり
、刃物に極度の衝撃が加わると割れが発生する。このよ
うな場合、窒化を全域に亘って行っていると、割れが母
材３である鋼材まで伝播し、全体が破壊するおそれがあ
るが、窒化時間を調節することによりチタン層４の中間
部まで窒化するようにし、ｍ３図に示されるような窒化
層４１と未窒化層４２の２層を形成するようにすれば、
窒化層４１に割れが生じても、母材３への伝播は未窒化
層４２に遮られ、これによって刃物全体の破壊を防止す
ることができる。Although the hardened layer 4' made of titanium nitride has an excellent hardness of more than three times that of steel, it is brittle and will crack if an extreme impact is applied to the cutter. In such a case, if nitriding is performed over the entire area, the cracks may propagate to the steel material that is the base material 3, and the entire structure may be destroyed. However, by adjusting the nitriding time, the middle part of the titanium layer 4 By nitriding to the point where two layers, a nitrided layer 41 and a non-nitrided layer 42, are formed as shown in the m3 diagram,
Even if a crack occurs in the nitrided layer 41, its propagation to the base material 3 is blocked by the unnitrided layer 42, thereby preventing the entire cutter from being destroyed.
（発明の効果）
以上のように本発明は、鋼からなる母材の表面に純チタ
ンまたはチタン合金を接合した素材を生成し、この素材
を加工して切刃部を形成し、この切刃部に窒化処理を施
して窒化チタンからなる硬化層を生成した後、同切刃部
を研削するものであるため、研削時にかえりやだれがほ
とんど発生せず、しかも刃先のエツジが鋭利で、耐摩耗
性および耐食性に優れた刃物を製造することができる効
果がある。(Effects of the Invention) As described above, the present invention produces a material in which pure titanium or titanium alloy is bonded to the surface of a base material made of steel, processes this material to form a cutting edge, and processes the material to form a cutting edge. Since the cutting edge is ground after being nitrided to create a hardened layer made of titanium nitride, there are almost no burrs or sag during grinding, and the edge of the cutting edge is sharp and durable. This has the effect of making it possible to manufacture cutlery with excellent wear resistance and corrosion resistance.
第１図（ａ）（ｂ）（ｃ）（ｄ）は本発明方法による電
気かみそりの外刃の製造工程を示す断面図および斜視図
、第２図（ａ）（ｂ）（ｃ）（ｄ）は同方法によるバリ
カンの刃の製造工程を示す断面図および斜視図、第３図
はチタン層の中間部まで窒化した素材の断面図、第４図
（ａ）（ｂ）（ｃ）は従来法による電気かみそりの外刃
の製造工程を示す断面図、第５図（ａ）は同方法により
だれを生じた刃先の断面図、第５図（ｂ）は同方法によ
り曲面が形成された刃先の断面図である。
１・・・高炭素マルテンサイト系ステンレス鋼からなる
内層、２・・・低炭素マルテンサイト系ステンレス鋼か
らなる外層、３・・・母材、４・・・チタン層、５・・
・素材、６・・・予備成形部分（切刃部）、７．１０・
・・刃先エツジ、９・・・切刃部。
特許出願人 松下電工 株式会社代 理 人
弁理士 小春 悦司同 弁理士
長１） 正向 弁理士 板谷 康夫
第 １ 図
（ａ）
第 ２ 図
（ａ）
第 ３ 図
第 ４ 図
（ａ）
第 ５ 図
（ａ）
（ｂ）Figures 1 (a), (b), (c) and (d) are cross-sectional and perspective views showing the manufacturing process of the outer blade of an electric shaver by the method of the present invention, and Figures 2 (a), (b), (c) and (d). ) are cross-sectional views and perspective views showing the manufacturing process of clipper blades using the same method, Figure 3 is a cross-sectional view of a material in which the titanium layer is nitrided up to the middle part, and Figures 4 (a), (b), and (c) are conventional Fig. 5(a) is a cross-sectional view of a cutting edge with droop formed by the same method, and Fig. 5(b) is a cutting edge with a curved surface formed by the same method. FIG. DESCRIPTION OF SYMBOLS 1... Inner layer made of high carbon martensitic stainless steel, 2... Outer layer made of low carbon martensitic stainless steel, 3... Base material, 4... Titanium layer, 5...
・Material, 6... Preformed part (cutting edge part), 7.10.
... Cutting edge, 9... Cutting edge. Patent applicant Matsushita Electric Works Co., Ltd. Agent
Patent Attorney Etsushi Koharu Patent Attorney Chief 1) Masamukai Patent Attorney Yasuo Itaya Figure 1 (a) Figure 2 (a) Figure 3 Figure 4 (a) Figure 5 (a) (b)
Claims (1)
を接合した素材を生成し、この素材を加工して切刃部を
形成し、この切刃部に窒化処理を施して窒化チタンから
なる硬化層を生成した後、同切刃部を研削することを特
徴とする刃物の製造方法。 ２、前記母材はマルテンサイト系ステンレス鋼からなる
ことを特徴とする特許請求の範囲第１項記載の刃物の製
造方法。 ３、前記母材は含有炭素量の異なる２種のステンレス鋼
からなる３層構造となっていることを特徴とする特許請
求の範囲第１項または第２項記載の刃物の製造方法。 ４、前記純チタンまたはチタン合金からなる層の中間部
分まで窒化を行うことを特徴とする特許請求の範囲第１
〜３項のいずれかに記載の刃物の製造方法。[Claims] 1. A material is produced by bonding pure titanium or titanium alloy to the surface of a base material made of steel, this material is processed to form a cutting edge, and this cutting edge is subjected to nitriding treatment. 1. A method for manufacturing a cutlery, characterized in that the cutting edge portion is ground after a hardened layer made of titanium nitride is produced. 2. The method for manufacturing a cutlery according to claim 1, wherein the base material is made of martensitic stainless steel. 3. The method for manufacturing a cutlery according to claim 1 or 2, wherein the base material has a three-layer structure made of two types of stainless steel with different carbon contents. 4. Claim 1, characterized in that nitriding is performed up to the middle part of the layer made of pure titanium or titanium alloy.
The method for manufacturing a cutlery according to any one of items 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15687087A JPS63318985A (en) | 1987-06-24 | 1987-06-24 | Production of edge tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15687087A JPS63318985A (en) | 1987-06-24 | 1987-06-24 | Production of edge tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63318985A true JPS63318985A (en) | 1988-12-27 |
Family
ID=15637189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15687087A Pending JPS63318985A (en) | 1987-06-24 | 1987-06-24 | Production of edge tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63318985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611145A (en) * | 1991-12-20 | 1997-03-18 | Wetzel; Matthias | Dry-shaving apparatus |
| US6194088B1 (en) * | 1997-11-12 | 2001-02-27 | Daido Steel Co., Ltd. | Stainless steel coated with intermetallic compound and process for producing the same |
| JP2019137893A (en) * | 2018-02-09 | 2019-08-22 | 日鉄日新製鋼株式会社 | Stainless clad steel and method for producing the same, and cutter |
-
1987
- 1987-06-24 JP JP15687087A patent/JPS63318985A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611145A (en) * | 1991-12-20 | 1997-03-18 | Wetzel; Matthias | Dry-shaving apparatus |
| US6052904A (en) * | 1991-12-20 | 2000-04-25 | Braun Aktiengesellschaft | Dry-shaving apparatus |
| US6098289A (en) * | 1991-12-20 | 2000-08-08 | Braun Aktiengesellschaft | Dry-shaving apparatus |
| US6194088B1 (en) * | 1997-11-12 | 2001-02-27 | Daido Steel Co., Ltd. | Stainless steel coated with intermetallic compound and process for producing the same |
| JP2019137893A (en) * | 2018-02-09 | 2019-08-22 | 日鉄日新製鋼株式会社 | Stainless clad steel and method for producing the same, and cutter |
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