JP2000326142A - Electric discharge machining method - Google Patents
Electric discharge machining methodInfo
- Publication number
- JP2000326142A JP2000326142A JP11143151A JP14315199A JP2000326142A JP 2000326142 A JP2000326142 A JP 2000326142A JP 11143151 A JP11143151 A JP 11143151A JP 14315199 A JP14315199 A JP 14315199A JP 2000326142 A JP2000326142 A JP 2000326142A
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- Prior art keywords
- workpiece
- electric discharge
- discharge machining
- electrodes
- 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)
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、マルチアークと呼
ばれる多相アーク放電を用いた放電加工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric discharge machining method using a multi-phase arc discharge called a multi-arc.
【０００２】[0002]
【従来の技術】従来より、焼入鋼や超硬合金などの切削
加工が容易でない金属材料の加工に放電加工が使用され
ている。従来の放電加工は、絶縁性の加工液中で被加工
物に加工電極を対向させ、被加工物と加工電極との間に
短時間のパルス状アーク放電を繰り返し発生させること
により、被加工物の表面を除去加工する。2. Description of the Related Art Conventionally, electric discharge machining has been used for machining of hard-to-cut metal materials such as hardened steel and cemented carbide. In conventional electric discharge machining, a machining electrode is opposed to a workpiece in an insulating machining fluid, and a short-time pulse-like arc discharge is repeatedly generated between the workpiece and the machining electrode, so that the workpiece is processed. The surface of the is removed.
【０００３】この放電加工によると、焼入鋼や超硬合金
などの切削加工が容易でない金属材料に対しても、複雑
な形状の加工が比較的容易に行われることから、精密金
型の多くはこの放電加工を用いて製造されている。According to this electric discharge machining, machining of complicated shapes is relatively easily performed even on metal materials such as hardened steel and cemented carbide which are not easily cut. Are manufactured using this electric discharge machining.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
放電加工では、加工に時間がかかり、コストも高くなる
という本質的な問題がある。また、放電加工では被加工
物の表面が除去されることに伴い多量の金属粒子が発生
するが、その金属粒子は利用価値がないため、屑材とし
て処理されている。加工の種類としては、除去加工に限
定されており、肉盛や溶射、蒸着のような、材料を付加
する加工への適用は考えられていない。However, in the conventional electric discharge machining, there is an essential problem that machining takes time and the cost is high. In addition, in electric discharge machining, a large amount of metal particles are generated as the surface of the workpiece is removed, but the metal particles have no utility value and are treated as scrap materials. The type of processing is limited to removal processing, and application to processing for adding a material, such as cladding, thermal spraying, or vapor deposition, is not considered.
【０００５】本発明はかかる事情に鑑みて創案されたも
のであり、除去加工だけでなく、肉盛や溶射、蒸着のよ
うな、材料を付加する加工についても、これを短時間で
能率的に行うことができ、しかも、除去加工に伴って発
生する粒子を利用価値の高い新素材として再利用するこ
とができる、経済性に極めて優れた放電加工方法を提供
することを目的とする。The present invention has been made in view of such circumstances, and not only removal processing but also processing for adding a material such as overlaying, thermal spraying, and vapor deposition can be efficiently performed in a short time. It is an object of the present invention to provide an extremely economical electric discharge machining method which can be performed and can reuse particles generated by the removal processing as a new material having a high utility value.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る放電加工方法は、所定の間隔で先端を
突き合わせて中心線の周囲に配置された複数の電極棒を
被加工物に対向させ、その複数の電極棒に位相が異なる
電圧を印加して被加工物との間にマルチアーク放電を発
生させることにより、被加工物の表面を放電加工するも
のである。In order to achieve the above object, an electric discharge machining method according to the present invention comprises a plurality of electrode rods which are arranged around a center line with their tips abutting at predetermined intervals. The electric discharge machining is performed on the surface of the workpiece by applying voltages having different phases to the plurality of electrode rods to generate a multi-arc discharge with the workpiece.
【０００７】本出願人はマルチアークについての研究を
長年続けている。マルチアークは、所定の間隔で先端を
突き合わせて中心線の周囲に配置された複数の電極棒に
位相が異なる電圧を印加したときに発生する極めて強烈
なアークプラズマである。このマルチアークは、１万度
近くの超高温のアーク炎を伴い、衝撃波を発生する。更
に強烈な電磁振動や回転磁界、その他、紫外線、遠赤外
線等の多様な波動パワーを伴う。そして、このマルチア
ークは、水中や油中等の液中でも安定に発生する。Applicants have been studying multi-arc for many years. The multi-arc is an extremely intense arc plasma generated when voltages having different phases are applied to a plurality of electrode rods arranged around a center line with their tips abutted at predetermined intervals. This multi-arc is accompanied by an ultra-high-temperature arc flame near 10,000 degrees and generates a shock wave. Further, it involves intense electromagnetic vibrations, rotating magnetic fields, and various other wave powers such as ultraviolet rays and far infrared rays. The multi-arc is stably generated even in a liquid such as water or oil.
【０００８】本発明に係る放電加工方法では、このマル
チアークを加工用放電として被加工物との間に発生させ
ることにより、切削加工が困難な金属材料やセラミック
等の非金属材料についても、これを短時間で溶融し加工
する。In the electric discharge machining method according to the present invention, the multi-arc is generated as a machining electric discharge between the workpiece and a workpiece, so that even a non-metallic material such as a metal material or a ceramic material which is difficult to machine. Is melted and processed in a short time.
【０００９】放電加工としては、除去加工の他に、肉盛
や溶射、蒸着のような、材料を付加する加工（材料供給
を必要とする加工）が可能である。即ち、複数の電極棒
として、炭素電極のような非消耗電極を使用すれば、被
加工物表面の除去加工が可能である。一方、複数の電極
棒として消耗式電極を使用すれば、各電極棒から被加工
物の表面上へ材料が移行し供給されることにより、肉盛
や溶射、蒸着が可能である。肉盛や溶射、蒸着の場合、
複数の電極棒に囲まれた位置に配置されたニュートラル
電極を消耗電極として、材料供給を行うこともできる。[0009] As the electric discharge machining, in addition to the removal machining, a process for adding a material (a process requiring a material supply) such as overlaying, thermal spraying, and vapor deposition is possible. That is, if a non-consumable electrode such as a carbon electrode is used as the plurality of electrode rods, the surface of the workpiece can be removed. On the other hand, if consumable electrodes are used as the plurality of electrode rods, the material is transferred and supplied from each electrode rod onto the surface of the workpiece, so that overlaying, thermal spraying, and vapor deposition can be performed. In the case of overlay, thermal spraying, and vapor deposition,
Material supply can also be performed by using a neutral electrode disposed at a position surrounded by a plurality of electrode rods as a consumable electrode.
【００１０】放電加工が除去加工の場合、除去加工に伴
って被加工物から発生する粒子は、液中で急冷されて良
質の微粒子状の新素材となる。[0010] When the electric discharge machining is the removal machining, particles generated from the workpiece due to the removal machining are rapidly cooled in a liquid to become a new high-quality fine material.
【００１１】即ち、従来の放電加工では、除去加工に伴
って被加工物から発生する粒子は屑材となるが、本発明
に係る放電加工方法では、マルチアーク放電の多大なエ
ネルギーを受けて、被加工物の加工部分が瞬時に溶融し
自ら微粒子となって液中に高速で飛び出すので、被加工
物が金属の場合は、今まで得られなかった良質のアモル
ファス微粒子となり、セラミック等の非金属の場合も特
殊性能をもった貴重な微粒子となる。しかも、この微粒
子は概ね真円の球体であるため、この点からも利用価値
が高い。更に、少し大きな球体となると、内部が中空と
なる。このため、非常に高硬度で割れにくく、しかも軽
いという貴重な新素材が得られる。被加工物がセラミッ
ク等の非金属の場合も、急冷型の微粒子状新素材が副産
物として得られる。That is, in the conventional electric discharge machining, particles generated from the workpiece along with the removal machining become scrap materials, but in the electric discharge machining method according to the present invention, a large amount of energy of the multi-arc discharge is received, Since the processed part of the workpiece is instantaneously melted and becomes fine particles and jumps out of the liquid at high speed, when the workpiece is metal, it becomes high-quality amorphous fine particles that could not be obtained until now, and nonmetals such as ceramics In this case, it becomes valuable particles with special performance. In addition, since these fine particles are generally spherical, they are highly useful. Further, when a slightly larger sphere is formed, the inside becomes hollow. For this reason, a valuable new material that is very hard, hard to crack, and light is obtained. Even when the workpiece is a non-metal such as ceramic, a quenched new particulate fine material is obtained as a by-product.
【００１２】マルチアーク放電は、水中等の液中で超高
温と電磁振動等の激しい波動エネルギーを生じるので、
タングステンや純炭素等の超耐熱物質でも速やかに溶融
させる。被加工物と電極を異種の組み合わせとすること
により、例えば耐火煉瓦の上に金属の肉盛を行ったり、
銅板の上に鉄の肉盛を行ったりすることが可能であり、
様々な機能をもつ複合新素材の製造が可能となる。The multi-arc discharge generates intense wave energy such as electromagnetic vibration in a liquid such as water.
Even super heat-resistant substances such as tungsten and pure carbon are quickly melted. By using different combinations of workpieces and electrodes, for example, metal cladding on refractory bricks,
It is possible to build up iron on a copper plate,
New composite materials with various functions can be manufactured.
【００１３】肉盛や溶射、蒸着等の材料供給を必要とす
る放電加工、特に溶射及び蒸着では、複数の電極棒と被
加工物の間に電位差を付与するのが良い。即ち、マルチ
アーク放電で発生する微粒子は電子性、イオン性により
−極に帯電している。このため、電極側を−極、被加工
物の側を＋極とすることにより、微粒子が被加工物の側
に引かれ、被加工物への材料供給が促進され、大型又は
異質の肉盛等も可能になる。In electric discharge machining that requires material supply such as overlaying, thermal spraying, and vapor deposition, particularly in thermal spraying and vapor deposition, it is preferable to apply a potential difference between a plurality of electrode rods and a workpiece. That is, the fine particles generated by the multi-arc discharge are negatively charged due to electronic and ionic properties. Therefore, by setting the electrode side to the negative pole and the workpiece side to the positive pole, the fine particles are attracted to the workpiece side, the material supply to the workpiece is promoted, and a large or heterogeneous overlay is formed. Etc. are also possible.
【００１４】マルチアーク放電では、複数の電極棒の他
に、複数の電極棒に囲まれた位置に配置されたニュート
ラル電極を併用する場合がある。肉盛や溶射、蒸着等の
材料供給を必要とする放電加工では、このニュートラル
電極を消耗電極とすることでも、被加工物への材料供給
が可能である。また、ニュートラル電極に−の極性、被
加工物に＋の極性をそれぞれ付与することにより、被加
工物への材料供給が促進される。In the multi-arc discharge, a neutral electrode disposed at a position surrounded by a plurality of electrode rods may be used in addition to the plurality of electrode rods. In electric discharge machining that requires material supply such as overlaying, thermal spraying, and vapor deposition, material supply to a workpiece can be performed by using the neutral electrode as a consumable electrode. In addition, by supplying a negative polarity to the neutral electrode and a positive polarity to the workpiece, respectively, the material supply to the workpiece is promoted.
【００１５】放電加工が除去加工の場合は、被加工物を
接地するか、電極側を＋、被加工物の側を−とすること
により、被加工物への材料供給が回避される。When the electric discharge machining is the removal machining, the material supply to the workpiece is avoided by grounding the workpiece or setting the electrode side to + and the workpiece side to-.
【００１６】放電加工雰囲気としては、水中等の液中に
限らず、気体中も可能である。その気体としては例えば
種々の不活性ガスを挙げることができる。The electric discharge machining atmosphere is not limited to a liquid such as water, but may be a gas. Examples of the gas include various inert gases.
【００１７】[0017]
【発明の実施の形態】以下に本発明の実施形態を図面に
基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１８】図１及び図２は本発明の第１実施形態を示
す。本実施形態に係る放電加工方法は、図１に示すよう
に、被加工物１０の除去加工に使用される。被加工物１
０は金属又は非金属であり、いずれの場合も水２０の中
で接地される。液体が油のときも底に水を入れることが
できる。FIGS. 1 and 2 show a first embodiment of the present invention. The electric discharge machining method according to the present embodiment is used for removing a workpiece 10 as shown in FIG. Workpiece 1
0 is a metal or non-metal and is in each case grounded in the water 20. Even when the liquid is oil, water can be added to the bottom.
【００１９】この放電加工は、中心線の周囲に対称的に
配置された３本乃至１２本の電極棒３０，３０・・を使
用する。電極棒３０，３０・・は、炭素電極等の非消耗
電極であり、先端を所定の間隔で突き合わせて傾斜配置
され、水２０の中で被加工物１０の表面に所定の間隔で
対向している。This electric discharge machining uses three to twelve electrode rods 30, 30,... Arranged symmetrically around the center line. The electrode rods 30, 30,... Are non-consumable electrodes, such as carbon electrodes, and are arranged obliquely with their tips abutting at predetermined intervals, facing the surface of the workpiece 10 in the water 20 at predetermined intervals. I have.
【００２０】本実施形態に係る放電加工方法では、電極
棒３０，３０・・に位相が異なる多相電圧又は特殊波形
のパルス電圧を印加することにより、水中その他いかな
る雰囲気中でも電極棒３０，３０・・と被加工物１０の
間にマルチアーク放電４０を発生させる。マルチアーク
放電４０は、１万度近くの超高温のアーク炎を伴い、更
に強烈な電磁振動や回転磁界、その他、紫外線、遠赤外
線等の多様な波動パワーを伴う。このため、被加工物１
０が難加工金属材の場合もセラミックのような非金属の
場合も、その表面が瞬時に溶融し、その結果、図２
（ａ）に示すように、被加工物１０の表面が短時間で椀
型の凹部１１に除去加工される。In the electric discharge machining method according to this embodiment, a multi-phase voltage having a different phase or a pulse voltage having a special waveform is applied to the electrode rods 30, 30,. A multi-arc discharge 40 is generated between the workpiece and the workpiece 10. The multi-arc discharge 40 is accompanied by an arc flame at an extremely high temperature of about 10,000 degrees, accompanied by intense electromagnetic vibrations, a rotating magnetic field, and various wave powers such as ultraviolet rays and far infrared rays. Therefore, the workpiece 1
In the case where 0 is a difficult-to-work metal material or a non-metal such as ceramic, its surface is instantaneously melted.
As shown in FIG. 1A, the surface of the workpiece 10 is removed into the bowl-shaped recess 11 in a short time.
【００２１】また、この除去加工に伴って、被加工物１
０の表面から溶融状態の微粒子が水中に飛散し、水中で
急冷されることにより、微粒子が製造され、被加工物１
０が金属の場合はアモルファス微粒子となり、セラミッ
クの場合は特殊性能をもった微粒子が製造される。製造
された微粒子は製品として回収される。In addition, the workpiece 1
The fine particles in a molten state are scattered into water from the surface of No. 0 and quenched in water to produce fine particles.
When 0 is a metal, it becomes amorphous fine particles, and when it is a ceramic, fine particles having special performance are produced. The produced fine particles are collected as a product.
【００２２】電極棒３０，３０・・は、必要に応じて被
加工物１０に接近する方向に駆動される。The electrode rods 30, 30,... Are driven in a direction approaching the workpiece 10 as necessary.
【００２３】加工形状としては、図２（ａ）に示す椀型
の凹部１１だけでなく、図２（ｂ）（ｃ）に示すような
貫通孔１２も可能であり、様々な除去加工が短時間で行
われる。例えば厚さ２００ｍｍの鋼板に貫通孔をあける
場合、所要時間はパワーを上げて集中すれば１０分以内
も可能である。精密仕上げは、小径の電極棒を用いたマ
ルチアーク放電により可能である。As the processing shape, not only the bowl-shaped recess 11 shown in FIG. 2A but also a through hole 12 as shown in FIGS. 2B and 2C is possible. Done in time. For example, when a through hole is formed in a steel plate having a thickness of 200 mm, the required time can be within 10 minutes if the power is increased and the concentration is performed. Precision finishing is possible by multi-arc discharge using a small-diameter electrode rod.
【００２４】図３は本発明の第２実施形態を示す。本実
施形態に係る放電加工方法では、上述した電極棒３０，
３０・・として消耗電極を使用することにより、被加工
物１０の表面に肉盛部１３を形成する。電極棒３０，３
０・・が被加工物１０と同種材の場合は、肉盛部１３は
被加工物１０と同種材となり、異種材の場合は、異種材
の肉盛部１３が形成される。FIG. 3 shows a second embodiment of the present invention. In the electric discharge machining method according to the present embodiment, the above-described electrode rod 30,
By using a consumable electrode as 30..., The overlay 13 is formed on the surface of the workpiece 10. Electrode rod 30,3
When 0... Is the same kind of material as the workpiece 10, the overlay 13 is the same kind of material as the workpiece 10, and when 0... Is a different kind of material, the overlay 13 of the different kind of material is formed.
【００２５】図３（ａ）では、被加工物１０の平坦な表
面に２段に肉盛部１３ａ，１３ｂが形成されている。肉
盛部１３ａ，１３ｂは同種でも異種でもよい。図３
（ｂ）では被加工物１０の平坦な表面にリング状の肉盛
部１３が形成されている。図３（ｃ）では、被加工物１
０に形成されたテーパ状の貫通孔１２の内面に２層の肉
盛部１３ａ，１３ｂが被覆形成されている。ここにおけ
る肉盛部１３ａ，１３ｂも同種でも異種でもよい。In FIG. 3A, overlaid portions 13a and 13b are formed on the flat surface of the workpiece 10 in two steps. The cladding portions 13a and 13b may be of the same type or different types. FIG.
In (b), a ring-shaped overlay 13 is formed on the flat surface of the workpiece 10. In FIG. 3C, the workpiece 1
On the inner surface of the tapered through-hole 12 formed at 0, two layers of overlay portions 13a and 13b are formed by coating. The overlay portions 13a, 13b here may be of the same type or different types.
【００２６】図４は本発明の第３実施形態を示す。本実
施形態に係る放電加工方法は、溶射や蒸着といった皮膜
形成加工である。この放電加工方法は、中心線の周囲に
対称的に傾斜配置された３本乃至１２本の電極棒３０，
３０・・と、その中心線位置に配置されたニユートラル
電極５０とを使用する。電極棒３０，３０・・は炭素電
極等の非消耗電極である。ニユートラル電極５０は皮膜
を形成するための材料からなる消耗電極であり、中実材
でも中空材の中に皮膜形成材を充填したものでもよい。
被加工物１０は金属でも非金属でもよい。FIG. 4 shows a third embodiment of the present invention. The electric discharge machining method according to the present embodiment is a film forming process such as thermal spraying or vapor deposition. This electric discharge machining method includes three to twelve electrode rods 30, which are symmetrically arranged around the center line.
30.. And the neutral electrode 50 arranged at the center line position. The electrode rods 30, 30,... Are non-consumable electrodes such as carbon electrodes. The neutral electrode 50 is a consumable electrode made of a material for forming a film, and may be a solid material or a hollow material filled with a film forming material.
Workpiece 10 may be metallic or non-metallic.
【００２７】本実施形態に係る放電加工方法では、電極
棒３０，３０・・に位相が異なる電圧を印加することに
より、電極棒３０，３０・・と被加工物１０の間にマル
チアーク放電４０を発生させる。また、ニユートラル電
極５０が−極、被加工物１０が＋極となるように、両者
間に電圧を印加する。In the electric discharge machining method according to the present embodiment, a multi-arc discharge 40 is applied between the electrode rods 30, 30,. Generate. In addition, a voltage is applied between the neutral electrode 50 and the workpiece 10 so that the neutral electrode 50 has a negative pole and the workpiece 10 has a positive pole.
【００２８】マルチアーク放電４０は、１万度近くの超
高温のアーク炎を伴い、更に強烈な電磁振動や回転磁
界、その他、紫外線、遠赤外線等の多様な波動パワーを
伴う。このため、ニユートラル電極５０が溶融し、微細
な溶滴となる。この溶滴は電子性、イオン性により−に
帯電している。このため、溶滴がニユートラル電極５０
から被加工物１０の表面に速やかに移行し、これによ
り、被加工物１０の表面に溶射や蒸着による皮膜１４が
形成される。The multi-arc discharge 40 is accompanied by an arc flame at an extremely high temperature of about 10,000 degrees, accompanied by intense electromagnetic vibration, a rotating magnetic field, and various other wave powers such as ultraviolet rays and far infrared rays. For this reason, the neutral electrode 50 melts and becomes a fine droplet. These droplets are negatively charged by electronic and ionic properties. For this reason, the droplet is deposited on the neutral electrode 50.
From the surface of the workpiece 10, whereby a coating 14 is formed on the surface of the workpiece 10 by thermal spraying or vapor deposition.
【００２９】[0029]
【発明の効果】以上に説明した通り、本発明に係る放電
加工方法は、超高温や各種波動エネルギーを保有するマ
ルチアーク放電を用いることにより、除去加工だけでな
く、肉盛や溶射、蒸着のような、材料を付加する加工に
ついても、同種、異種を問わず短時間で能率的に行うこ
とができ、超大型材についても経済的な加工を可能にす
る。また、新しい複合材料の製造も可能にする。更に、
除去加工に伴って発生する粒子の新素材として再利用を
可能にする。これらにより、将来の宇宙産業や海洋産業
等に大きな飛躍をもたらすことが期待できる。As described above, the electric discharge machining method according to the present invention uses not only removal processing but also overlaying, thermal spraying, and vapor deposition by using a multi-arc discharge having an ultra-high temperature and various wave energies. Such a process of adding a material can be efficiently performed in a short time regardless of the same type or different types, thereby enabling economical processing of an ultra-large material. It also enables the production of new composite materials. Furthermore,
Enables the reuse of particles generated during the removal process as new materials. These can be expected to make a great leap forward in the space industry and marine industry in the future.
【図１】本発明の第１実施形態に係る放電加工方法の装
置構成図である。FIG. 1 is an apparatus configuration diagram of an electric discharge machining method according to a first embodiment of the present invention.
【図２】同放電加工方法で得られる加工品の形状説明図
である。FIG. 2 is an explanatory diagram of a shape of a machined product obtained by the electric discharge machining method.
【図３】本発明の第２実施形態に係る放電加工方法で得
られる加工品の形状説明図である。FIG. 3 is an explanatory view of a shape of a machined product obtained by an electric discharge machining method according to a second embodiment of the present invention.
【図４】本発明の第３実施形態に係る放電加工方法の装
置構成図である。FIG. 4 is an apparatus configuration diagram of an electric discharge machining method according to a third embodiment of the present invention.
１０ 被加工物 １１ 凹部 １２ 貫通孔 １３ 肉盛部 １４ 皮膜 ２０ 水 ３０ 電極棒 ４０ マルチアーク放電 ５０ ニュートラル電極 DESCRIPTION OF SYMBOLS 10 Workpiece 11 Concavity 12 Through-hole 13 Overlay part 14 Coating 20 Water 30 Electrode rod 40 Multi-arc discharge 50 Neutral electrode
Claims (7)
の周囲に配置された複数の電極棒を被加工物に対向さ
せ、その複数の電極棒に位相が異なる電圧を印加して被
加工物との間にマルチアーク放電を発生させることによ
り、被加工物の表面を放電加工することを特徴とする放
電加工方法。1. A plurality of electrode rods arranged around a center line with their tips abutting at predetermined intervals to face a workpiece, and applying voltages having different phases to the plurality of electrode rods to apply a voltage to the workpiece. An electric discharge machining method for generating a multi-arc electric discharge between the electric discharge machining and the electric discharge machining of the surface of the workpiece.
請求項１に記載の放電加工方法。2. The electric discharge machining method according to claim 1, wherein the electric discharge machining is performed in a liquid.
徴とする請求項１又は２に記載の放電加工方法。3. The electric discharge machining method according to claim 1, wherein the surface of the workpiece is removed.
って発生する被加工物の微粒子を回収することを特徴と
する請求項３に記載の放電加工方法。4. The electric discharge machining method according to claim 3, wherein fine particles of the workpiece generated by removing the surface of the workpiece are collected.
行うことを特徴とする請求項１又は２に記載の放電加工
方法。5. The electric discharge machining method according to claim 1, wherein the surface of the workpiece is clad, sprayed or vapor-deposited.
囲まれた位置に配置されたニュートラル電極を消耗電極
とすることを特徴とする請求項５に記載の放電加工方
法。6. The electric discharge machining method according to claim 5, wherein a plurality of electrode rods and / or a neutral electrode disposed at a position surrounded by the plurality of electrode rods is used as a consumable electrode.
たニュートラル電極に−の極性、被加工物に＋の極性を
それぞれ付与することを特徴とする請求項５又は６に記
載の放電加工方法。7. The discharge according to claim 5, wherein the neutral electrode disposed at a position surrounded by the plurality of electrode rods is given a negative polarity, and the workpiece is given a positive polarity. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143151A JP2000326142A (en) | 1999-05-24 | 1999-05-24 | Electric discharge machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143151A JP2000326142A (en) | 1999-05-24 | 1999-05-24 | Electric discharge machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000326142A true JP2000326142A (en) | 2000-11-28 |
Family
ID=15332123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11143151A Pending JP2000326142A (en) | 1999-05-24 | 1999-05-24 | Electric discharge machining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000326142A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009117331A (en) * | 2007-07-09 | 2009-05-28 | Ngk Insulators Ltd | Plasma processing device |
| CN103920945A (en) * | 2014-04-01 | 2014-07-16 | 北京冶科纳米科技有限公司 | Electric discharge wire cutting method for niobium pentoxide target material blank |
| RU2765157C1 (en) * | 2021-02-07 | 2022-01-26 | Харбин Велдинг Инститьют Лимитед Компани | Method for stabilizing an electric arc for welding thick plates using several arcs and a common welding bath |
-
1999
- 1999-05-24 JP JP11143151A patent/JP2000326142A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009117331A (en) * | 2007-07-09 | 2009-05-28 | Ngk Insulators Ltd | Plasma processing device |
| CN103920945A (en) * | 2014-04-01 | 2014-07-16 | 北京冶科纳米科技有限公司 | Electric discharge wire cutting method for niobium pentoxide target material blank |
| RU2765157C1 (en) * | 2021-02-07 | 2022-01-26 | Харбин Велдинг Инститьют Лимитед Компани | Method for stabilizing an electric arc for welding thick plates using several arcs and a common welding bath |
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