JPS63195242A - Electrode material for electric discharge machining - Google Patents
Electrode material for electric discharge machiningInfo
- Publication number
- JPS63195242A JPS63195242A JP2616087A JP2616087A JPS63195242A JP S63195242 A JPS63195242 A JP S63195242A JP 2616087 A JP2616087 A JP 2616087A JP 2616087 A JP2616087 A JP 2616087A JP S63195242 A JPS63195242 A JP S63195242A
- Authority
- JP
- Japan
- Prior art keywords
- discharge machining
- alloy
- electrode material
- electric discharge
- 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.)
- Pending
Links
- 239000007772 electrode material Substances 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 9
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 3
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 3
- 239000010953 base metal Substances 0.000 claims abstract 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 2
- 238000009760 electrical discharge machining Methods 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000009835 boiling Methods 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 229910014031 strontium zirconium oxide Inorganic materials 0.000 abstract description 2
- -1 (Ca Chemical class 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本願発明は放電加工用の電極材料に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an electrode material for electric discharge machining.
周知のように、放電加工は被加工物の加工量が多く、す
なわち加工速度が大きく、しかも加工電極側の消耗が少
ないことが望ましい。As is well known, in electric discharge machining, it is desirable that the workpiece be machined in a large amount, that is, the machining speed should be high, and the wear on the machining electrode side should be small.
とくに、かかる放電加工用電極材料として見た場合、仕
事関数が低く、電極材料の融点、沸点が高いこと、及び
熱伝導性、電気伝導性が良いことが必要である。In particular, when viewed as such an electrode material for electric discharge machining, it is necessary that the work function is low, the electrode material has a high melting point and boiling point, and that it has good thermal conductivity and electrical conductivity.
従来から、この条件に適合した材料としてＣｕ−＃合金
とへｇ−１１合金が用いられ、最近は例えば特開昭３５
−８０４６号公報、特開昭５１−８４４９６号公報に記
載されているように、これらの合金にアルカリ金属。Traditionally, Cu-# alloy and Heg-11 alloy have been used as materials that meet this condition, and recently, for example, JP-A-35
As described in Japanese Patent Application Laid-open No. 8046-8046 and Japanese Patent Application Laid-Open No. 51-84496, alkali metals are added to these alloys.
アルカリ土類金属やその酸化物等の添加物を含有させる
ことにより、仕事関数を低くし、加工速度を上昇させた
電極が開発されている。Electrodes have been developed that contain additives such as alkaline earth metals and their oxides to lower the work function and increase the processing speed.
ところが、これらの放電加工用電極材料は、添加物自体
が毒性を生じるものや吸湿性があるものがあり、取り扱
いに問題があり、また製造が困難であるという欠点があ
る。However, these electrode materials for electrical discharge machining have the drawbacks that some of the additives themselves are toxic or hygroscopic, which poses problems in handling and is difficult to manufacture.
本発明の目的は、上記の従来の電極の欠点を解消し、加
工速度が増加し電極消耗比の少ない放電加工用電極材料
を提供しようとするものである。An object of the present invention is to provide an electrode material for electrical discharge machining that eliminates the above-mentioned drawbacks of conventional electrodes, increases machining speed, and reduces electrode consumption ratio.
本発明は、上記添加物として、常温においては勿論、放
電加工中の高温においても安定な複合化合物とくに複合
酸化物を分散含ａせしめることによって上記の目的を達
成したものである。The present invention achieves the above object by dispersing a composite compound, particularly a composite oxide, which is stable not only at room temperature but also at high temperatures during electric discharge machining, as the additive.
本発明において、適用できる基礎金属としては従来放電
加工用電極材料として用いられてきた合金が適用される
が、特に、電極材料の融点、沸点が高いこと、及び熱伝
導性、電気伝導性が良いことの点から、Ｃｕ−Ｗ合金、
へｇ−１１合金等のタングステン基合金が好適に使用で
きる。In the present invention, alloys that have been conventionally used as electrode materials for electric discharge machining are used as basic metals, but in particular, the electrode materials have high melting points and boiling points, and have good thermal conductivity and electrical conductivity. From this point of view, Cu-W alloy,
Tungsten-based alloys such as Heg-11 alloy can be suitably used.
また、添加物としては、化学的に安定であり、吸湿性も
な（融点、沸点が高く、銀、銅及びタングステンと固溶
せず、・均一に分散される性質を有するものである必要
があり、これを電極構成材料中に一様に分散させること
によって電極消耗を減少させる働きがある複合酸化物が
特に好適である。In addition, additives must be chemically stable, non-hygroscopic (high melting point, high boiling point, do not dissolve solidly with silver, copper, and tungsten, and have the property of being uniformly dispersed). Particularly suitable is a composite oxide, which has the function of reducing electrode consumption by uniformly dispersing it in the electrode constituent material.
この複合酸化物としては、電子放射性が良く、放電を安
定させる働きがあり、放電加工時の加工効率を向上させ
て加工速度を増大させる効果があるＳｒとＣａ、 Ｚ
ｒ、 Ｌａ、 Ｃｅ、 Ｗ等の酸化物の複合物を
使用することができる。This composite oxide contains Sr, Ca, and Z, which have good electron emissive properties and have the function of stabilizing electric discharge, improving machining efficiency and increasing machining speed during electric discharge machining.
Composites of oxides such as r, La, Ce, and W can be used.
とくに、（Ｃａ、５ｒ）Ｏ，ＳｒＺｒＯ３，Ｌａ２Ｓｒ
、○、。In particular, (Ca, 5r)O, SrZrO3, La2Sr
,○,.
５ｒＣｅＯ，、，５ｒｓＷＯｓ等の複合酸化物は化学的
に安定であり、吸湿性もなく、融点、沸点が高く、銀、
銅及びタングステンと固溶せず、均一に分散されるため
に、焼結性を阻害しない範囲の適量を含有させることに
よって、従来の単一酸化物の添加は勿論、混合添加の場
合と比較して電極消耗を顕著に減少させる働きがある。Composite oxides such as 5rCeO, , 5rsWOs are chemically stable, have no hygroscopicity, have high melting points and boiling points, and are
Since it does not form a solid solution with copper and tungsten and is uniformly dispersed, by including it in an appropriate amount within a range that does not inhibit sinterability, compared to the conventional addition of a single oxide as well as the case of mixed addition. This has the effect of significantly reducing electrode wear.
上記機能を発揮させるためには、複合酸化物等の状態に
よっても異なるが、基礎金属材中に、少なくとも０．０
５重量％含有させる必要がある。しかしながら、１０重
量％を越えるとこれらの酸化物が基体合金の焼結時の濡
れ性を阻害し、各合金成分間の結合度が低下する結果、
電極の消耗度合が大きくなる。In order to exhibit the above functions, it is necessary to add at least 0.0
It is necessary to contain 5% by weight. However, when the content exceeds 10% by weight, these oxides inhibit the wettability of the base alloy during sintering, resulting in a decrease in the degree of bonding between each alloy component.
The degree of electrode wear increases.
本発明の放電加工用電極材料は、従来の電極材料と同様
の製造法によって製造することができ、添加物を複合物
としたことによって、格別の製造法の採用は必要としな
い。The electrode material for electric discharge machining of the present invention can be manufactured by the same manufacturing method as conventional electrode materials, and since the additive is a composite, there is no need to adopt a special manufacturing method.
基礎合金としてＣｕ−Ｗ合金（（１）〜（７））とへｇ
−Ｗ合金（（ａ）〜（Ｃ））において、表１に示す配合
を有する混合粉末体を圧縮成形し、１３００℃の水素雰
囲気炉にて焼結及び溶浸を施し、切削加工の条件下で１
０印φＸ５０ｍｍサイズの電極を製造した。Cu-W alloys ((1) to (7)) and heg as basic alloys
-W alloy ((a) to (C)), a mixed powder body having the composition shown in Table 1 was compression molded, sintered and infiltrated in a hydrogen atmosphere furnace at 1300°C, and then de1
An electrode with a size of 0 mark φ x 50 mm was manufactured.
同電極材料を陰極として、三菱電機製０Ｍ−２５０゜０
Ｅ−３０放電加工機を用いて、７ｎ＋ｍ厚のＷＣ−１８
Ｃｏ合金板を加工液として白灯油を用い、液流圧：０．
５ｋｇ／ ｃｄの下で中穴３ ｍｍφの貫通加工を行っ
た。Using the same electrode material as the cathode, Mitsubishi Electric's 0M-250°0
Using E-30 electrical discharge machine, 7n+m thick WC-18
White kerosene was used as the processing fluid for the Co alloy plate, and the fluid flow pressure was 0.
A through hole of 3 mmφ was drilled under a load of 5 kg/cd.
表 １ この時の加工速度及び電極消耗比を表２に示す。Table 1 Table 2 shows the processing speed and electrode consumption ratio at this time.
表 ２
表２から明らかなように本発明による電極材料は、従来
の電極材料に比べ放電加工性能が著しく向上した。Table 2 As is clear from Table 2, the electrode material according to the present invention had significantly improved electrical discharge machining performance compared to the conventional electrode material.
本発明の複合化合物を含有する放電加工用電極材料は仕
事関数が低く、放電を安定させると共に融点、沸点が高
いために酸化物単体の添加の場合より加工速度は上昇し
、電極消耗比は減少する。The electrode material for electric discharge machining containing the composite compound of the present invention has a low work function, stabilizes the discharge, and has a high melting point and boiling point, so the machining speed increases and the electrode wear rate decreases compared to the case of adding a single oxide. do.
また化学的に安定で吸湿性などの欠点がないため、焼結
性も安定し、かなりの張添加しても焼結性を阻害せず、
上記性能の向上が達成できる。In addition, since it is chemically stable and has no drawbacks such as hygroscopicity, sinterability is stable, and even when a considerable amount of tension is added, sinterability is not inhibited.
The above performance improvement can be achieved.
Claims (1)
しめてなることを特徴とする放電加工用電極材料。 ２、基礎金属がＣｕ−Ｗ合金、Ａｇ−Ｗ合金等のタング
ステン基合金であることを特徴とする特許請求の範囲第
１項に記載の放電加工用電極材料。 ３、複合化合物が複合酸化物であることを特徴とする特
許請求の範囲第１項に記載の放電加工用電極材料。 ４、複合酸化物がＳｒとＣａ、Ｚｒ、Ｌａ、Ｃｅ、Ｗ等
からなる１つ又は２つ以上の酸化物であることを特徴と
する特許請求の範囲第３項に記載の放電加工用電極材料
。 ５、添加物の含有量が０．０５〜１０重量％であること
を特徴とする特許請求の範囲第１項に記載の放電加工用
電極材料。[Claims] 1. An electrode material for electrical discharge machining, characterized in that it contains an additive made of a composite compound in a base metal. 2. The electrode material for electrical discharge machining according to claim 1, wherein the base metal is a tungsten-based alloy such as a Cu-W alloy or an Ag-W alloy. 3. The electrode material for electric discharge machining according to claim 1, wherein the composite compound is a composite oxide. 4. The electrode for electrical discharge machining according to claim 3, wherein the composite oxide is one or more oxides of Sr and Ca, Zr, La, Ce, W, etc. material. 5. The electrode material for electric discharge machining according to claim 1, wherein the content of the additive is 0.05 to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2616087A JPS63195242A (en) | 1987-02-06 | 1987-02-06 | Electrode material for electric discharge machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2616087A JPS63195242A (en) | 1987-02-06 | 1987-02-06 | Electrode material for electric discharge machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195242A true JPS63195242A (en) | 1988-08-12 |
Family
ID=12185800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2616087A Pending JPS63195242A (en) | 1987-02-06 | 1987-02-06 | Electrode material for electric discharge machining |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195242A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004044255A1 (en) * | 2002-11-11 | 2004-05-27 | Sumitomo Electric Industries, Ltd. | Electrode material for electric discharge machining and method for production thereof |
| JP2007126702A (en) * | 2005-11-02 | 2007-05-24 | Silver Roi:Kk | Cu-W-BASED ALLOY, AND ELECTRODE USING THE ALLOY FOR ELECTRIC SPARK MACHINING |
| JP2007223036A (en) * | 2007-03-26 | 2007-09-06 | Allied Material Corp | Cu-w pipe and manufacturing method thereof, and electric discharging pipe electrode using the same and manufacturing method thereof |
| CN109234597A (en) * | 2018-11-22 | 2019-01-18 | 江苏经纬阀业有限公司 | A kind of tungsten-copper alloy and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230954A (en) * | 1984-04-27 | 1985-11-16 | Nok Corp | Material for electrode for electric discharge machining |
| JPS60230955A (en) * | 1984-04-27 | 1985-11-16 | Nok Corp | Material for electrode for electric discharge machining |
-
1987
- 1987-02-06 JP JP2616087A patent/JPS63195242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230954A (en) * | 1984-04-27 | 1985-11-16 | Nok Corp | Material for electrode for electric discharge machining |
| JPS60230955A (en) * | 1984-04-27 | 1985-11-16 | Nok Corp | Material for electrode for electric discharge machining |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004044255A1 (en) * | 2002-11-11 | 2004-05-27 | Sumitomo Electric Industries, Ltd. | Electrode material for electric discharge machining and method for production thereof |
| KR101080528B1 (en) | 2002-11-11 | 2011-11-04 | 스미토모덴키고교가부시키가이샤 | Electrode material for electric discharge machining and method for production thereof |
| JP2007126702A (en) * | 2005-11-02 | 2007-05-24 | Silver Roi:Kk | Cu-W-BASED ALLOY, AND ELECTRODE USING THE ALLOY FOR ELECTRIC SPARK MACHINING |
| JP2007223036A (en) * | 2007-03-26 | 2007-09-06 | Allied Material Corp | Cu-w pipe and manufacturing method thereof, and electric discharging pipe electrode using the same and manufacturing method thereof |
| CN109234597A (en) * | 2018-11-22 | 2019-01-18 | 江苏经纬阀业有限公司 | A kind of tungsten-copper alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5054854B2 (en) | Electrode for electrical discharge machining | |
| JPS5924170B2 (en) | Alloy for wire electrodes for electrical discharge machining | |
| JPS63195242A (en) | Electrode material for electric discharge machining | |
| JP3495770B2 (en) | Brazing filler metal for ceramics | |
| EP0020760A1 (en) | Method of preparing an electrical contact. | |
| CN102699567A (en) | Zirconium-containing copper silver titanium solder alloy | |
| US3272603A (en) | Refractory metal composite | |
| JPS63199842A (en) | Electrode material | |
| JP2620055B2 (en) | Cu-W alloy | |
| US5258052A (en) | Powder metallurgy silver-tin oxide electrical contact material | |
| JP2007126702A (en) | Cu-W-BASED ALLOY, AND ELECTRODE USING THE ALLOY FOR ELECTRIC SPARK MACHINING | |
| JPH07331361A (en) | Copper-tungsten alloy | |
| JP2004315841A (en) | Metallic material | |
| CN1019882C (en) | Copper alloy for compound electric contact | |
| KR20050072138A (en) | Electrode material for electric discharge machining and method for production thereof | |
| JPH0354172B2 (en) | ||
| JP4078938B2 (en) | Electrode material for EDM | |
| WO2001087521A2 (en) | High conductivity copper/refractory metal composites and method for making same | |
| JPS61235524A (en) | Material for electrode for electric spark machining | |
| JP2910415B2 (en) | Heat dissipation structural member made of tungsten-based sintered alloy for semiconductor device | |
| JPS6039738B2 (en) | Electrode materials for electrical discharge machining | |
| JPH0354171B2 (en) | ||
| JPS6056321A (en) | Method of producing contact for vacuum breaker | |
| JPS6058770B2 (en) | electrical contact materials | |
| JPS6317267A (en) | Solder material for joining ceramics each other or ceramic and metal |