JPH09155643A - Electrode wire for wire electric discharge machining - Google Patents
Electrode wire for wire electric discharge machiningInfo
- Publication number
- JPH09155643A JPH09155643A JP31871895A JP31871895A JPH09155643A JP H09155643 A JPH09155643 A JP H09155643A JP 31871895 A JP31871895 A JP 31871895A JP 31871895 A JP31871895 A JP 31871895A JP H09155643 A JPH09155643 A JP H09155643A
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- JP
- Japan
- Prior art keywords
- wire
- electric discharge
- discharge machining
- coating layer
- electrode
- 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.)
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ワイヤ放電加工
に使用する電極線に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode wire used for wire electric discharge machining.
【０００２】[0002]
【従来の技術】ワイヤ放電加工は、ワイヤ放電加工用電
極線と称される線状の加工電極と被加工物との間に、水
または油等の加工液を介し間欠的な放電を起こさせなが
ら、被加工物をワイヤ放電加工電極線に対して相対的に
移動させることにより、被加工物を所望の形状に溶融し
切断する方法である。この方法は、各種の金型の製造等
に利用されている。このようなワイヤ放電加工において
は、被加工物の仕上がり、加工精度および仕上がり表面
状態が良好なこと、電極線が被加工物に付着しないこ
と、および放電加工時間が短いこと、といった放電加工
特性が要求されている。そして、このようなワイヤ放電
加工に使用する放電加工用電極線としては、電極線とし
て優れた伸線加工性および強度を有することから、従来
より黄銅線が用いられている。2. Description of the Related Art In wire electric discharge machining, an intermittent electric discharge is generated between a linear machining electrode called a wire electric discharge machining electrode wire and a workpiece through a machining liquid such as water or oil. However, it is a method of melting and cutting the workpiece into a desired shape by moving the workpiece relative to the wire electric discharge machining electrode wire. This method is used for manufacturing various molds. In such wire electrical discharge machining, the electrical discharge machining characteristics such as the finish of the work piece, the machining accuracy and the finished surface state are good, the electrode wire does not adhere to the work piece, and the electric discharge machining time is short. Is required. As an electrode wire for electric discharge machining used for such wire electric discharge machining, a brass wire has been conventionally used because it has excellent wire drawing machinability and strength as an electrode wire.
【０００３】[0003]
【発明が解決しようとする課題】最近では、加工電源の
改良進歩に伴い、放電加工速度を向上させることが出来
る電極線が望まれている。特に、高電圧でかつ短時間の
パルス電圧を付与するようなワイヤ放電加工機の電源を
使用するような場合において、放電加工速度を高めるこ
との出来る電極線が望まれている。しかしながら、従来
の黄銅線を使用した放電加工電極線では十分に速い放電
加工速度を得ることが出来なかった。また被加工物への
電極線の付着量も多く、また高速で放電加工をしようと
すると断線しやすいという欠点もあった。この発明の課
題は、放電加工時間を短くすることができ、かつ電極線
が被加工物に付着しにくいワイヤ放電加工用電極線を提
供することにある。Recently, an electrode wire capable of improving the electric discharge machining speed has been demanded as the machining power source is improved. In particular, an electrode wire capable of increasing the electric discharge machining speed is desired when a power source of a wire electric discharge machine that applies a high voltage and a short-time pulse voltage is used. However, it was not possible to obtain a sufficiently high EDM speed with the conventional EDM electrode wire using a brass wire. In addition, the amount of electrode wires attached to the work piece is large, and there is a drawback that the wires are easily broken when attempting electrical discharge machining at high speed. An object of the present invention is to provide an electrode wire for wire electric discharge machining, which can shorten the electric discharge machining time and which is hard for the electrode wire to adhere to a workpiece.
【０００４】[0004]
【課題を解決するための手段】この発明は、芯材と、前
記芯材の外周に形成された被覆層を備えたワイヤ放電加
工用電極線であって、その被覆層の厚さＸが、前記ワイ
ヤ放電加工用電極線の線径をＤφとした場合、0.02Ｄ≦
Ｘ≦0.2Ｄの範囲内であって、芯材と被覆層との界面に
存在する拡散層が５μｍ以下であることを特徴とするワ
イヤ放電加工用電極線である。ここで、被覆層が１種類
の材料あるいは、２種以上の異なる材料からなる２層以
上の複数の層で構成されていてもよい。特に、芯材、被
覆材ともZnを３〜49重量％含むCu合金からなり、被覆層
のZn濃度が芯材のZn濃度より高いことが好ましい。さら
に、芯材と、前記芯材の外周に被覆層を備えるにあた
り、少なくともメッキ法または熱間押出し法を利用した
ワイヤ放電加工用電極線が好ましい。さらに、本発明で
は線径が0.1mm未満のワイヤ放電加工用電曲線も優れた
性能を示す。The present invention is a wire electric discharge machining electrode wire comprising a core material and a coating layer formed on the outer periphery of the core material, wherein the thickness X of the coating layer is: When the wire diameter of the wire for electric discharge machining is Dφ, 0.02D ≦
The electrode wire for wire electric discharge machining is characterized in that the diffusion layer existing at the interface between the core material and the coating layer has a thickness of 5 μm or less within the range of X ≦ 0.2D. Here, the coating layer may be composed of one kind of material or a plurality of two or more layers made of two or more different materials. In particular, it is preferable that both the core material and the coating material are made of a Cu alloy containing 3 to 49% by weight of Zn, and the Zn concentration of the coating layer is higher than the Zn concentration of the core material. Furthermore, in providing the core material and the coating layer on the outer periphery of the core material, an electrode wire for wire electric discharge machining using at least a plating method or a hot extrusion method is preferable. Further, in the present invention, the electric curve for wire electric discharge machining having a wire diameter of less than 0.1 mm also shows excellent performance.
【０００５】[0005]
【発明の実施の形態】芯材と、前記芯材の外周に形成さ
れた被覆層を備えたワイヤ放電加工用電極線において、
その被覆層の厚さＸと放電加工特性の関係について種々
調査してきた結果、ワイヤ放電加工用電極線の線径をＤ
Φとした場合、被覆層の厚さが0.02×Ｄ以上、0.2×Ｄ
以下の範囲内であるとき、放電加工特性が優れることを
見い出した。被覆層の厚さを0.02Ｄ以上、0.2Ｄ以下と
したのは、0.02Ｄ未満の場合、放電加工特性を向上させ
る効果が少なく、0.2Ｄを超えると、放電加工特性を向
上させる効果が飽和するためである。さらに、芯材と被
覆層の界面の拡散層の厚さが５μｍ以下であるほうが好
ましいことを見い出した。５μｍ以下としたのは、５μ
ｍを超えると放電加工特性が悪くなるばかりでなく、伸
線加工性も悪くなるためである。ここで、被覆層は１種
類の材料あるいは２種以上の異なる材料からなる２層以
上の複数の層で構成されていても何ら問題はない。BEST MODE FOR CARRYING OUT THE INVENTION A wire electric discharge machining electrode wire comprising a core material and a coating layer formed on the outer periphery of the core material,
As a result of various investigations on the relation between the thickness X of the coating layer and the electric discharge machining characteristics, the wire diameter of the wire electric discharge machining electrode wire is D
When Φ, the thickness of the coating layer is 0.02 × D or more, 0.2 × D
It has been found that the electric discharge machining characteristics are excellent when it is within the following range. The thickness of the coating layer is set to 0.02D or more and 0.2D or less because when it is less than 0.02D, the effect of improving the electric discharge machining characteristics is small, and when it exceeds 0.2D, the effect of improving the electric discharge machining characteristics is saturated. This is because. Furthermore, they have found that the thickness of the diffusion layer at the interface between the core material and the coating layer is preferably 5 μm or less. 5 μm or less is 5 μm
This is because if it exceeds m, not only the electric discharge machining characteristics deteriorate, but also the wire drawing machinability deteriorates. Here, there is no problem even if the coating layer is composed of two or more layers made of one kind of material or two or more kinds of different materials.
【０００６】特に、芯材、被覆材とも少なくともZnを3
〜49％含む銅合金からなり、被覆層の一部あるいは全部
のZn濃度が芯材のZn濃度より高い方が好ましいことを見
い出した。ここでZnの含有量を3〜49wt％としたのは、
３％未満では放電加工特性を向上させる効果が少なく、
49％を超えると効果が飽和するのと製品径への伸線加工
が困難なためである。[0006] In particular, the core material and the coating material each contain at least Zn.
It has been found that it is preferable that the Zn concentration of a part or the whole of the coating layer is higher than the Zn concentration of the core material. Here, the content of Zn is set to 3 to 49 wt%,
If it is less than 3%, the effect of improving the electric discharge machining characteristics is small,
This is because if it exceeds 49%, the effect will be saturated and it will be difficult to perform wire drawing to the product diameter.
【０００７】また、芯材と、前記芯材の外周に被覆層を
形成る方法について種々検討した結果、被覆層を形成す
る工程として少なくとも、メッキ法あるいは、熱間押出
し法を利用した場合、優れた放電加工特性を示すことを
見い出した。さらに、ワイヤ放電加工用電極線におい
て、その線径は細いほうが被加工面に対して良好な表面
性状をもたらす。しかし、従来の材料では線径0.1mm未
満での放電加工特性は十分とは言えなかった。一方、本
発明の電極線においては、線径が0.1mm未満でも優れた
放電加工特性を示した。As a result of various studies on the core material and a method of forming a coating layer on the outer periphery of the core material, it is excellent when at least a plating method or a hot extrusion method is used as the step of forming the coating layer. It has been found that it exhibits excellent electrical discharge machining characteristics. Furthermore, in the electrode wire for wire electric discharge machining, the smaller the wire diameter, the better the surface quality of the surface to be machined. However, it cannot be said that the conventional materials have sufficient electric discharge machining characteristics when the wire diameter is less than 0.1 mm. On the other hand, the electrode wire of the present invention showed excellent electric discharge machining characteristics even when the wire diameter was less than 0.1 mm.
【０００８】この発明に従う電極線は、高い速度で放電
加工を行うことができ、かつ、被加工物への付着物量が
少ない等、優れた放電加工特性を発揮する。特に、この
電極線は、高電圧でかつ短時間のパルス電圧を付与する
放電加工において優れた放電加工特性を示す。The electrode wire according to the present invention can perform electric discharge machining at a high speed and exhibits excellent electric discharge machining characteristics such as a small amount of deposits on a workpiece. In particular, this electrode wire exhibits excellent electric discharge machining characteristics in electric discharge machining in which a high voltage and a short-time pulse voltage are applied.
【０００９】[0009]
(1)熱間押出し法Ａ 熱間押出し法により、芯材：Cu-19.4％Zn合金、被覆
層：Cu-40.6％Zn合金、線径：7.2mmΦ、表面層厚さ：0.
6mmの試料を試作した。その後、伸線加工と熱処理を繰
り返し行い所望の線径の電極線を製造した。また、線癖
をなくすため伸線工程の最終段階で軽く通電熱処理を行
った。このようにして得られた電極線において、この発
明による電極線は強度も高く、線癖のない伸直性に優れ
たものであった。(1) Hot extrusion method A By hot extrusion method, core material: Cu-19.4% Zn alloy, coating layer: Cu-40.6% Zn alloy, wire diameter: 7.2 mmΦ, surface layer thickness: 0.
A 6 mm sample was prototyped. Then, wire drawing and heat treatment were repeated to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process. Among the electrode wires thus obtained, the electrode wire according to the present invention had high strength and was excellent in straightness with no line habit.
【００１０】(2)熱間押出し法Ｂ 熱間押出し法により、芯材：Cu-15％Zn合金、被覆層：C
u-40.3％Zn合金層＋Cu層、線径：7.2mmΦ、表面層厚
さ：0.7mm（各々0.6＋0.1mm）の試料を試作した。その
後、伸線加工と熱処理を繰り返し行い所望の線径の電極
線を製造した。また、線癖をなくすため伸線工程の最終
段階で軽く通電熱処理を行った。このようにして得られ
た電極線において、この発明による電極線は強度も高
く、線癖のない伸直性に優れたものであった。(2) Hot extrusion method B By hot extrusion method, core material: Cu-15% Zn alloy, coating layer: C
A sample of u-40.3% Zn alloy layer + Cu layer, wire diameter: 7.2 mmΦ, and surface layer thickness: 0.7 mm (0.6 + 0.1 mm each) was manufactured. Then, wire drawing and heat treatment were repeated to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process. Among the electrode wires thus obtained, the electrode wire according to the present invention had high strength and was excellent in straightness with no line habit.
【００１１】(3)メッキ法Ａ 電気メッキ＋熱処理法により、芯材：Cu-10％Zn合金、
被覆層：Cu-55％Zn合金、線径：0.7mmΦ、表面層厚さ：
80μｍの試料を試作した。その後、伸線加工を行い所望
の線径の電極線を製造した。また、線癖をなくすため伸
線工程の最終段階で軽く通電熱処理を行った。このよう
にして得られた電極線において、この発明による電極線
は強度も高く、線癖のない伸直性に優れたものであっ
た。(3) Plating method A Core material: Cu-10% Zn alloy, by electroplating + heat treatment method,
Coating layer: Cu-55% Zn alloy, wire diameter: 0.7mmΦ, surface layer thickness:
An 80 μm sample was prototyped. Then, wire drawing was performed to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process. Among the electrode wires thus obtained, the electrode wire according to the present invention had high strength and was excellent in straightness with no line habit.
【００１２】(4)メッキ法Ｂ 電気メッキ＋熱処理法により、芯材：鋼、被覆層：Cu-4
8％Zn合金、線径：0.7mmΦ、表面層厚さ：40μｍの試料
を試作した。その後、伸線加工を行い所望の線径の電極
線を製造した。また、線癖をなくすため伸線工程の最終
段階で軽く通電熱処理を行った。このようにして得られ
た電極線において、この発明による電極線は強度も高
く、線癖のない伸直性に優れたものであった。(4) Plating method B Core material: steel, coating layer: Cu-4 by electroplating + heat treatment method
A sample of 8% Zn alloy, wire diameter: 0.7 mmΦ, surface layer thickness: 40 μm was prototyped. Then, wire drawing was performed to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process. Among the electrode wires thus obtained, the electrode wire according to the present invention had high strength and was excellent in straightness with no line habit.
【００１３】(5)メッキ法Ｃ 溶融メッキ法により、芯材：Cu-0.2％Cr合金、被覆層：
Cu-41％Zn合金、線径：1.2mmΦ、表面層厚さ：120μｍ
の試料を試作した。その後、伸線加工を行い所望の線径
の電極線を製造した。また、線癖をなくすため伸線工程
の最終段階で軽く通電熱処理を行った。このようにして
得られた電極線において、この発明による電極線は強度
も高く、線癖のない伸直性に優れたものであった。(5) Plating method C By the hot dipping method, core material: Cu-0.2% Cr alloy, coating layer:
Cu-41% Zn alloy, wire diameter: 1.2 mmΦ, surface layer thickness: 120 μm
Were made as prototypes. Then, wire drawing was performed to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process. Among the electrode wires thus obtained, the electrode wire according to the present invention had high strength and was excellent in straightness with no line habit.
【００１４】(6)メッキ法Ｄ（比較例） 溶融メッキ法により、芯材：Cu-10％Zn合金、被覆層：C
u-41％Zn合金、線径：1.2mmΦ、表面層厚さ：270μｍの
試料を試作した。その後、伸線加工を行い所望の線径の
電極線を製造した。また、線癖をなくすため伸線工程の
最終段階で軽く通電熱処理を行った。(6) Plating Method D (Comparative Example) Core material: Cu-10% Zn alloy, coating layer: C by hot dipping method
A sample of u-41% Zn alloy, wire diameter: 1.2 mmΦ, surface layer thickness: 270 μm was prototyped. Then, wire drawing was performed to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process.
【００１５】(7)その他の方法（比較例） 嵌合法により、芯材：Cu-15％Zn合金、被覆層：Cu-40％
Zn合金、線径：7.2mmΦ、表面層厚さ：0.09mmの試料を
試作した。その後、伸線加工と熱処理を繰り返し行い所
望の線径の電極線を製造した。また、線癖をなくすため
伸線工程の最終段階で軽く通電熱処理を行った。(7) Other methods (comparative example) By fitting method, core material: Cu-15% Zn alloy, coating layer: Cu-40%
A Zn alloy, wire diameter: 7.2 mmΦ, surface layer thickness: 0.09 mm sample was prototyped. Then, wire drawing and heat treatment were repeated to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process.
【００１６】(8)メッキ法Ｅ（比較例） 電気メッキ＋熱処理法により、芯材：Cu-0.2％Cr合金、
被覆層：Cu-41％Zn合金、線径：0.7mmΦ、表面層厚さ：
80μｍの試料を試作した。その後、伸線加工を行い所望
の線径の電極線を製造した。また、線癖をなくすため伸
線工程の最終段階で軽く通電熱処理を行った。(8) Plating method E (comparative example) Core material: Cu-0.2% Cr alloy, by electroplating + heat treatment method,
Coating layer: Cu-41% Zn alloy, wire diameter: 0.7mmΦ, surface layer thickness:
An 80 μm sample was prototyped. Then, wire drawing was performed to manufacture an electrode wire having a desired wire diameter. Also, in order to eliminate the wire habit, a light electric current heat treatment was performed at the final stage of the wire drawing process.
【００１７】(9)メッキ法Ｆ 溶融メッキ法により、芯材：Cu-10％Zn合金、被覆層：C
u-56％Zn合金、線径：1.2mmΦ、表面層厚さ：270μｍの
試料を試作したところ、伸線は不可能であり、たとえで
きたとしても、0.9mmΦで断線が多発し、実用に供する
ことは不可能であった。以上(1)〜(8)の方法で試作した
電極線の諸元を表１に記載する。なお、拡散層は芯材と
被覆層の組成が徐々に変化している層のことを意味す
る。(9) Plating method F Core material: Cu-10% Zn alloy, coating layer: C
When a sample of u-56% Zn alloy, wire diameter: 1.2 mmΦ, surface layer thickness: 270 μm was prototyped, wire drawing was impossible. Even if it was possible, wire breakage occurred frequently at 0.9 mmΦ and it was put into practical use. It was impossible to offer. Table 1 shows the specifications of the electrode wire prototyped by the above methods (1) to (8). The diffusion layer means a layer in which the compositions of the core material and the coating layer are gradually changed.
【００１８】[0018]
【表１】 [Table 1]
【００１９】得られた電極線をワイヤ放電加工機に取り
付けて同一条件で放電加工を行い、放電加工速度、被加
工物への付着量、被加工物の表面性状、電極線の断線状
況および自動結線性について調査した。その結果を表２
に示す。なお、自動結線性とは、ワイヤ放電加工機にお
ける放電加工中に電極線が断線した場合に、新しい電極
線が被加工物を経由して自動的に巻取り装置まで送り出
されることを云い、そのためには、被加工物の放電箇所
を通過出来るようにすることが必要であるので、電極線
を垂れ下げた時にほぼ一直線状になることが必要条件で
ある。また、比較のため従来の電極線についても同様に
調査を行い表２に併記した。なお、放電加工速度は単位
時間当たりの加工断面積（加工送り速度と被加工物厚さ
の積）で求めた後、従来素材のワイヤ放電加工速度を1.
0としてそれぞれの比を求め表２に示した。被加工物の
付着量も従来素材のワイヤを100として相対的な比率で
示した。The obtained electrode wire is attached to a wire electric discharge machine, and electric discharge machining is performed under the same conditions. The electric discharge speed, the amount of adhesion to the work piece, the surface texture of the work piece, the disconnection state of the electrode wire, and the automatic The connectivity was investigated. Table 2 shows the results.
Shown in In addition, automatic wire connection means that when the electrode wire is broken during electric discharge machining in the wire electric discharge machine, a new electrode wire is automatically sent out to the winding device via the work piece. In order to be able to pass through the discharge location of the work piece, it is a necessary condition that the electrode wire becomes substantially straight when it is suspended. Further, for comparison, the same investigation was conducted on the conventional electrode wire, and the results are also shown in Table 2. The electrical discharge machining speed is calculated by the machining cross-sectional area per unit time (the product of the machining feed rate and the workpiece thickness), and then the wire EDM speed of the conventional material is 1.
The respective ratios were determined as 0 and are shown in Table 2. The adhered amount of the work piece is also shown as a relative ratio with the conventional wire being 100.
【００２０】[0020]
【表２】 [Table 2]
【００２１】表２中、表面性状についてのＡ〜Ｄは以下
の通りである。 A：表面が非常に滑らかで厚さ方向での寸法さなく非常
に良好であった。 B：表面が滑らかで厚さ方向での寸法差がほとんどなく
良好であった。 C：表面がやや荒く厚さ方向で寸法差がややみられた。 D：表面が荒く厚さ方向の中央部でタイコ状の形状を示
した。 表２に示す実施例と比較例とを対比すると、この発明の
範囲外では、加工性、放電特性、および自動結線性をす
べて同時に満足させることは困難であることがわかる。In Table 2, A to D for surface texture are as follows. A: The surface was very smooth and there was no dimension in the thickness direction, which was very good. B: The surface was smooth and there was almost no dimensional difference in the thickness direction, which was good. C: The surface was a little rough, and there was a slight dimensional difference in the thickness direction. D: The surface was rough and showed a Tyco-like shape in the central portion in the thickness direction. Comparing the examples shown in Table 2 with the comparative examples, it is understood that it is difficult to satisfy all of the workability, the discharge characteristic, and the automatic wire connection property at the same time outside the scope of the present invention.
【００２２】[0022]
【発明の効果】本発明は、以上説明したような形態で実
施され、以下に記載されるような効果を奏する。すなわ
ち、本発明の電極線は、従来よりも放電加工特性（加工
速度、表面性状等）が著しく向上し、自動結線性にも優
れているということができるものである。また、被覆層
が１種類の場合は、製造の比較的簡単であり、それだけ
安価に生産することが可能である。なお、被覆層が複数
層であっても、Ｚｎの密度の勾配を利用して放電性を向
上させることが可能である。更に、芯材より被覆層のＺ
ｎの濃度を高くしているので、放電加工性が高い。ま
た、被覆層をメッキや熱間押出しで線材を得るので、強
度も高く、線癖のない伸直性の優れた線を得ることが出
来る。なお、線径が0.1mm未満であっても、優れた放電
加工性を示すと云った効果がある。The present invention is embodied in the form described above and has the following effects. That is, it can be said that the electrode wire of the present invention has remarkably improved electric discharge machining characteristics (machining speed, surface properties, etc.) as compared with the prior art and is also excellent in automatic wire connection property. Further, when there is only one type of coating layer, it is relatively easy to manufacture and it is possible to manufacture it at such a low cost. Even if the coating layer has a plurality of layers, it is possible to improve the dischargeability by utilizing the gradient of the density of Zn. Furthermore, the core layer is coated with Z
Since the concentration of n is high, the electric discharge machinability is high. Further, since the wire material is obtained by plating the coating layer or hot extruding the wire, it is possible to obtain a wire having high strength and excellent straightness with no habit. Even if the wire diameter is less than 0.1 mm, there is an effect that excellent electric discharge machinability is exhibited.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 江崎 繁男 大阪府大阪市此花区島屋一丁目１番３号 住友電気工業株式会社大阪製作所内 (72)発明者 久米 敏弘 大阪府大阪市此花区島屋一丁目１番３号 住友電気工業株式会社大阪製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeo Ezaki 1-3-3 Shimaya, Konohana-ku, Osaka-shi, Osaka Prefecture Sumitomo Electric Industries, Ltd. Osaka Works (72) Toshihiro Kume, Shimaya, Konohana-ku, Osaka-shi, Osaka 1 to 3 Sumitomo Electric Industries, Ltd. Osaka Works
Claims (7)
覆層を備えたワイヤ放電加工用電極線であって、その被
覆層の厚さＸが、前記ワイヤ放電加工用電極線の線径を
Ｄφとした場合、0.02Ｄ≦Ｘ≦0.2Ｄの範囲内であっ
て、前記芯材と前記被覆層との界面に存在する拡散層が
５μｍ以下であることを特徴とするワイヤ放電加工用電
極線。1. A wire electric discharge machining electrode wire comprising a core material and a coating layer formed on the outer periphery of the core material, wherein a thickness X of the coating layer is equal to that of the wire electric discharge machining electrode wire. When the wire diameter is Dφ, it is within the range of 0.02D ≦ X ≦ 0.2D, and the diffusion layer existing at the interface between the core material and the coating layer is 5 μm or less. Electrode wire.
に記載のワイヤ放電加工用電極線。2. The coating layer is made of one kind of material.
The electrode wire for wire electric discharge machining according to.
２層以上の複数の層で構成されている請求項１に記載の
ワイヤ放電加工用電極線。3. The electrode wire for wire electric discharge machining according to claim 1, wherein the coating layer is composed of a plurality of two or more layers made of two or more different materials.
重量％含むCu合金からなり、被覆層のZn濃度が芯材のZn
濃度より高いものである請求項１乃至請求項３のいずれ
か１項に記載のワイヤ放電加工用電極線。4. The core material and the coating material both have a Zn content of 3 to 49.
It is made of a Cu alloy containing 100% by weight, and the Zn concentration of the coating layer is
The electrode wire for wire electric discharge machining according to any one of claims 1 to 3, which has a higher concentration.
するにあたり、少なくともメッキ法を利用した請求項１
乃至請求項４のいずれか１項に記載のワイヤ放電加工用
電極線。5. The core material and at least a plating method is used for forming the coating layer on the outer periphery of the core material.
The electrode wire for wire electric discharge machining according to claim 4.
するにあたり、少なくとも熱間押出し法を利用した請求
項１乃至請求項４のいずれか１項に記載のワイヤ放電加
工用電極線。6. The wire electric discharge machining electrode according to claim 1, wherein at least a hot extrusion method is used to form the core material and the coating layer on the outer periphery of the core material. line.
求項６のいずれか１項に記載のワイヤ放電加工用電極
線。7. The electrode wire for wire electric discharge machining according to claim 1, wherein the wire diameter is less than 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31871895A JPH09155643A (en) | 1995-12-07 | 1995-12-07 | Electrode wire for wire electric discharge machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31871895A JPH09155643A (en) | 1995-12-07 | 1995-12-07 | Electrode wire for wire electric discharge machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09155643A true JPH09155643A (en) | 1997-06-17 |
Family
ID=18102200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31871895A Pending JPH09155643A (en) | 1995-12-07 | 1995-12-07 | Electrode wire for wire electric discharge machining |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09155643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136952A (en) * | 2004-11-10 | 2006-06-01 | Tokusen Kogyo Co Ltd | Electrode wire for electric discharge machining |
-
1995
- 1995-12-07 JP JP31871895A patent/JPH09155643A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136952A (en) * | 2004-11-10 | 2006-06-01 | Tokusen Kogyo Co Ltd | Electrode wire for electric discharge machining |
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