FR2399302A1 - Procede d'usinage par decharge electrique - Google Patents

Procede d'usinage par decharge electrique

Info

Publication number
FR2399302A1
FR2399302A1 FR7822450A FR7822450A FR2399302A1 FR 2399302 A1 FR2399302 A1 FR 2399302A1 FR 7822450 A FR7822450 A FR 7822450A FR 7822450 A FR7822450 A FR 7822450A FR 2399302 A1 FR2399302 A1 FR 2399302A1
Authority
FR
France
Prior art keywords
discharge machining
machining
electric discharge
interval
machining process
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.)
Granted
Application number
FR7822450A
Other languages
English (en)
Other versions
FR2399302B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of FR2399302A1 publication Critical patent/FR2399302A1/fr
Application granted granted Critical
Publication of FR2399302B1 publication Critical patent/FR2399302B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

L'invention a trait à un procédé d'usinage par décharge électrique. Elle a pour objet un procédé d'usinage par décharge électrique selon lequel l'intervalle d'usinage par décharge électrique entre une électrode et une pièce d'ouvrage à usiner est ajusté automatiquement. Pour détecter la condition de l'intervalle d'usinage par décharge, une impulsion à basse tension est appliquée chaque fois qu'un ensemble d'impulsions à tension élevée pour un usinage par décharge électrique est appliqué pendant un temps prédéterminé. Le courant d'usinage résultant de l'application de chaque impulsion à basse tension est détecté pour commander l'avancement de l'électrode et ainsi ajuster automatiquement l'intervalle d'usinage par décharge à une valeur prédéterminée. Application : notamment à l'usinage par électro-érosion.
FR7822450A 1977-08-01 1978-07-28 Procede d'usinage par decharge electrique Granted FR2399302A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52092378A JPS5940578B2 (ja) 1977-08-01 1977-08-01 放電加工方法

Publications (2)

Publication Number Publication Date
FR2399302A1 true FR2399302A1 (fr) 1979-03-02
FR2399302B1 FR2399302B1 (fr) 1982-12-17

Family

ID=14052753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822450A Granted FR2399302A1 (fr) 1977-08-01 1978-07-28 Procede d'usinage par decharge electrique

Country Status (5)

Country Link
US (1) US4287403A (fr)
JP (1) JPS5940578B2 (fr)
DE (1) DE2833662A1 (fr)
FR (1) FR2399302A1 (fr)
GB (1) GB2001892B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261153B1 (en) 1960-12-15 2001-07-17 Hayes Lemmerz International, Inc. Apparatus and method of machining brake components
US4221952A (en) * 1977-08-11 1980-09-09 Mitsubishi Denki Kabushiki Kaisha Electric discharge machining method
JPS54127096A (en) * 1978-03-24 1979-10-02 Mitsubishi Electric Corp Electric spark machining
JPS57138530A (en) * 1981-02-13 1982-08-26 Mitsubishi Electric Corp Electric power source apparatus for machining with electrical discharge
DE3117814A1 (de) * 1981-05-06 1982-12-02 Eksperimental'nyj naučno-issledovatel'skij institut metallorežuščich stankov, Moskva Verfahren und einrichtung zur automatischen steuerung eines elektroerosiven bearbeitungsvorganges
JPS5856738A (ja) * 1981-09-30 1983-04-04 Nippon Kokan Kk <Nkk> ロ−ル状被加工物の放電加工方法
JPS5856737A (ja) * 1981-09-30 1983-04-04 Nippon Kokan Kk <Nkk> ロ−ル状被加工物の放電加工装置
JPS5877414A (ja) * 1981-11-02 1983-05-10 Inoue Japax Res Inc 電気加工用加工液及びこの加工液を使用する電気加工方法
DE3208389A1 (de) * 1982-03-09 1983-11-03 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Numerische steuerung fuer bearbeitungsmaschinen
US4553012A (en) * 1984-04-18 1985-11-12 Anderson Alex L Electrical discharge surface conditioning device
GB8524600D0 (en) * 1985-10-04 1985-11-06 Transfer Technology Ltd Working electrically conductive materials
GB8706091D0 (en) * 1987-03-14 1987-04-15 Spark Tec Ltd Electro-discharge machining apparatus
GB8712753D0 (en) * 1987-05-30 1987-07-01 Sarclad Int Ltd Electrical discharge method
US6505716B1 (en) 1999-11-05 2003-01-14 Hayes Lemmerz International, Inc. Damped disc brake rotor
JP6311725B2 (ja) * 2013-02-04 2018-04-18 アンカ・ピーティーワイ・リミテッド 放電加工機器用のパルス及びギャップ制御
CN111042784A (zh) * 2019-12-12 2020-04-21 龚大建 一种具有自校功能的高压放电电极
CN115508184B (zh) * 2022-10-26 2025-03-25 山东大学 基于水下脉冲放电冲击波的岩石粉碎实验装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1230717A (fr) * 1958-06-09 1960-09-19 Firth Sterling Inc Procédé et dispositif d'usinage par étincelage électrique
US3988560A (en) * 1975-12-29 1976-10-26 Cincinnati Milacron, Inc. Method and apparatus for controlling generation of machining pulses in EDM power supply
US4021635A (en) * 1975-12-29 1977-05-03 Cincinnati Milacron, Inc. Apparatus for controlling tool feed mechanism on an EDM machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH414034A (fr) * 1964-03-14 1966-05-31 Charmilles Sa Ateliers Procédé d'usinage par décharges électriques intermittentes
DE1267767B (de) * 1964-08-14 1968-05-09 Aeg Elotherm Gmbh Verfahren zur Vorschubregelung der Werkzeugelektrode von Funkenerosionsmaschinen undSchaltungsanordnung zur Ausuebung des Verfahrens
US3878353A (en) * 1968-12-05 1975-04-15 Ingersoll Milling Machine Co Method for finishing rolls
US3609281A (en) * 1969-12-15 1971-09-28 Cincinnati Milacron Inc Method and apparatus for detecting short circuits in the machining gap in an edm process
US3789182A (en) * 1972-02-23 1974-01-29 Colt Ind Operating Corp Apparatus for electrical discharge machining employing periodic extended pulse off time
US4236057A (en) * 1976-12-14 1980-11-25 Inoue-Japax Research Incorporated Apparatus for detecting gap conditions in EDM processes with monitoring pulses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1230717A (fr) * 1958-06-09 1960-09-19 Firth Sterling Inc Procédé et dispositif d'usinage par étincelage électrique
US3988560A (en) * 1975-12-29 1976-10-26 Cincinnati Milacron, Inc. Method and apparatus for controlling generation of machining pulses in EDM power supply
US4021635A (en) * 1975-12-29 1977-05-03 Cincinnati Milacron, Inc. Apparatus for controlling tool feed mechanism on an EDM machine

Also Published As

Publication number Publication date
JPS5940578B2 (ja) 1984-10-01
JPS5426598A (en) 1979-02-28
GB2001892B (en) 1982-11-10
US4287403A (en) 1981-09-01
FR2399302B1 (fr) 1982-12-17
GB2001892A (en) 1979-02-14
DE2833662A1 (de) 1979-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse