GB1324285A - Apparatus for use in electric discharge machining a workpiece - Google Patents

Apparatus for use in electric discharge machining a workpiece

Info

Publication number
GB1324285A
GB1324285A GB2209871A GB2209871A GB1324285A GB 1324285 A GB1324285 A GB 1324285A GB 2209871 A GB2209871 A GB 2209871A GB 2209871 A GB2209871 A GB 2209871A GB 1324285 A GB1324285 A GB 1324285A
Authority
GB
United Kingdom
Prior art keywords
gap
voltage
transistor
source
diode
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.)
Expired
Application number
GB2209871A
Other languages
English (en)
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 GB1324285A publication Critical patent/GB1324285A/en
Expired 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
    • 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
    • B23H1/022—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges for shaping the discharge pulse train

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
GB2209871A 1970-02-06 1971-04-19 Apparatus for use in electric discharge machining a workpiece Expired GB1324285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1053670 1970-02-06

Publications (1)

Publication Number Publication Date
GB1324285A true GB1324285A (en) 1973-07-25

Family

ID=11752970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2209871A Expired GB1324285A (en) 1970-02-06 1971-04-19 Apparatus for use in electric discharge machining a workpiece

Country Status (5)

Country Link
US (1) US3655936A (https=)
BE (1) BE762390A (https=)
CH (1) CH525740A (https=)
FR (1) FR2080481A5 (https=)
GB (1) GB1324285A (https=)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151388A (en) * 1977-05-16 1979-04-24 Colt Industries Operating Corp. Current control system for electrical discharge machining apparatus
JPS56163830A (en) * 1980-05-13 1981-12-16 Inoue Japax Res Inc Pulse power source
JPS57138530A (en) * 1981-02-13 1982-08-26 Mitsubishi Electric Corp Electric power source apparatus for machining with electrical discharge
JPS58211826A (ja) * 1982-05-28 1983-12-09 Mitsubishi Electric Corp 放電加工装置
JPS60135127A (ja) * 1983-12-23 1985-07-18 Fanuc Ltd 放電加工機の位置出し用電源装置
EP0187738A1 (fr) * 1984-06-29 1986-07-23 MIRONOFF, Nicolas Circuit electrique pour machine d'usinage par electro-erosion
GB8706091D0 (en) * 1987-03-14 1987-04-15 Spark Tec Ltd Electro-discharge machining apparatus
US4931613A (en) * 1987-05-08 1990-06-05 Allegheny Ludlum Corporation Electrical discharge scribing for improving core loss of grain-oriented silicon steel
GB8712753D0 (en) * 1987-05-30 1987-07-01 Sarclad Int Ltd Electrical discharge method
US5126525A (en) * 1988-11-01 1992-06-30 Sodick Co., Ltd. Power supply system for electric discharge machines
US5434380A (en) * 1990-07-16 1995-07-18 Mitsubishi Denki Kabushiki Kaisha Surface layer forming apparatus using electric discharge machining
JP2817396B2 (ja) * 1990-11-29 1998-10-30 三菱電機株式会社 放電加工装置
JP2682276B2 (ja) * 1991-07-26 1997-11-26 三菱電機株式会社 放電加工装置の電源
WO1999058743A1 (en) * 1998-05-08 1999-11-18 Mitsubishi Denki Kabushiki Kaisha Power source unit for discharge surface treatment
US8030591B2 (en) * 2006-07-31 2011-10-04 3M Innovative Properties Company Microreplication on a complex surface
JP6017096B1 (ja) * 2015-10-30 2016-10-26 三菱電機株式会社 ワイヤ放電加工機、ワイヤ放電加工機の制御装置の制御方法及び位置決め方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871410A (en) * 1957-06-24 1959-01-27 Elox Corp Michigan Electrical discharge machining watchdog circuit
US3052817A (en) * 1958-03-19 1962-09-04 Republic Aviat Corp Method of and means for energizing spark-machining apparatus
US3158728A (en) * 1960-07-26 1964-11-24 Elox Corp Michigan High voltage-reverse polarity edm
US3154719A (en) * 1961-09-11 1964-10-27 Welding Research Inc Arc starting system
BE637717A (https=) * 1962-10-01
US3485987A (en) * 1962-11-01 1969-12-23 Elox Inc Machining power supply for electrical discharge machining
US3578937A (en) * 1969-08-21 1971-05-18 Elox Inc Electrical discharge machining power supply circuit of the superimposed voltage type

Also Published As

Publication number Publication date
BE762390A (fr) 1971-08-02
FR2080481A5 (https=) 1971-11-12
US3655936A (en) 1972-04-11
DE2104627B2 (de) 1976-12-09
DE2104627A1 (de) 1971-08-19
CH525740A (de) 1972-07-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years