CA921566A - Power switch short circuit detector for edm - Google Patents

Power switch short circuit detector for edm

Info

Publication number
CA921566A
CA921566A CA111752A CA111752A CA921566A CA 921566 A CA921566 A CA 921566A CA 111752 A CA111752 A CA 111752A CA 111752 A CA111752 A CA 111752A CA 921566 A CA921566 A CA 921566A
Authority
CA
Canada
Prior art keywords
edm
short circuit
power switch
circuit detector
switch short
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
CA111752A
Other languages
English (en)
Other versions
CA111752S (en
Inventor
Takarada Eiichi
B. Bertolasi Robert
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.)
Amsted Industries Inc
Original Assignee
Amsted Industries Inc
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 Amsted Industries Inc filed Critical Amsted Industries Inc
Application granted granted Critical
Publication of CA921566A publication Critical patent/CA921566A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • 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
    • B23H1/026—Power supply protection, e.g. detection of power switch breakdown

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
CA111752A 1970-06-15 1971-04-29 Power switch short circuit detector for edm Expired CA921566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4595670A 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
CA921566A true CA921566A (en) 1973-02-20

Family

ID=21940744

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111752A Expired CA921566A (en) 1970-06-15 1971-04-29 Power switch short circuit detector for edm

Country Status (5)

Country Link
US (1) US3627967A (de)
CA (1) CA921566A (de)
DE (1) DE2124208A1 (de)
GB (1) GB1343955A (de)
NL (1) NL7108227A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775578A (en) * 1971-03-10 1973-11-27 Colt Ind Operating Corp Polarity reversal system for electrical discharge machining apparatus
US3778579A (en) * 1972-04-27 1973-12-11 Amsted Ind Inc Arc control
US3777102A (en) * 1972-07-19 1973-12-04 Colt Ind Operating Corp Electrical discharge machining power supply circuit
US3855443A (en) * 1973-06-25 1974-12-17 Colt Ind Operating Gap sensing circuit for electrical discharge machining apparatus
JPS60153525A (ja) * 1984-01-23 1985-08-13 Canon Inc 交流制御回路用安全回路
US4777339A (en) * 1986-08-29 1988-10-11 Ho Kuang Ta Gap voltage sensing network for electrical discharge machining power supply
JP2660529B2 (ja) * 1988-02-04 1997-10-08 ファナック株式会社 ワイヤ放電加工装置
GB9626324D0 (en) * 1996-12-19 1997-02-05 Bp Chem Int Ltd Process
US6469283B1 (en) * 1999-03-04 2002-10-22 Applied Materials, Inc. Method and apparatus for reducing thermal gradients within a substrate support
US8125572B2 (en) * 2005-03-15 2012-02-28 Maxim Integrated Products, Inc. System and method for automatic power-up and power-down of an output video circuit
US7675544B2 (en) * 2005-06-10 2010-03-09 Maxim Integrated Products, Inc. System and method for video transmission line fault detection
WO2010010927A1 (ja) * 2008-07-24 2010-01-28 三菱電機株式会社 放電加工装置、放電加工方法および半導体基板の製造方法

Family Cites Families (6)

* 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
US3138690A (en) * 1961-04-13 1964-06-23 Elox Corp Michigan Fail safe power feed system
US3257580A (en) * 1961-05-26 1966-06-21 Elox Corp Michigan Fault detection and cut-off circuit for electrical discharge machining apparatus
GB1046471A (en) * 1963-04-08 1966-10-26 B S A Electrochemical Machines Methods and apparatus for electrochemical machining of metals
US3532850A (en) * 1966-07-27 1970-10-06 Amsted Ind Inc Power supply for electrical discharge machining
US3524037A (en) * 1968-01-22 1970-08-11 Elox Inc Fail transistor protective circuit for electrical discharge machining apparatus

Also Published As

Publication number Publication date
US3627967A (en) 1971-12-14
NL7108227A (de) 1971-12-17
GB1343955A (en) 1974-01-16
DE2124208A1 (de) 1972-01-27

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