JPS5554139A - Discharge processing system - Google Patents
Discharge processing systemInfo
- Publication number
- JPS5554139A JPS5554139A JP13808479A JP13808479A JPS5554139A JP S5554139 A JPS5554139 A JP S5554139A JP 13808479 A JP13808479 A JP 13808479A JP 13808479 A JP13808479 A JP 13808479A JP S5554139 A JPS5554139 A JP S5554139A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- time
- processing
- processing gap
- transistor groups
- 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
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)
Abstract
PURPOSE:To enable at all times a stable processing, by impressing a pulse voltage to a processing gap, and by regulating a discharge duration according to a time in the case the time until discharge at the processing gap is within a reference value. CONSTITUTION:Transistor groups 3A-3N are closed by means of signals from an amplifier 7, a voltage being impressed to a processing gap provided between a discharge processing electrode 1 and an object 2 to be processed. Discharging then starts in a certain time lag, a discharge-starting being detected by means of a no- load voltage impressing time measuring device 18 via a resistor 17. Thus, a no-load voltage impressing time, which has elapsed before discharge is generated, is measured. A discharge duration is regulated by a discharge duration control device 20 according to said measuring results and the output of a processing gap condition detector 19, said transistor groups being opened after a given time has elapsed. Said circuit-opening time, during which the transistor groups are left opened, is decided by means of a quiescent time measuring device 21.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54138084A JPS6057971B2 (en) | 1979-10-25 | 1979-10-25 | Electric discharge machining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54138084A JPS6057971B2 (en) | 1979-10-25 | 1979-10-25 | Electric discharge machining method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12749872A Division JPS5722688B2 (en) | 1972-12-19 | 1972-12-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5554139A true JPS5554139A (en) | 1980-04-21 |
JPS6057971B2 JPS6057971B2 (en) | 1985-12-18 |
Family
ID=15213573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54138084A Expired JPS6057971B2 (en) | 1979-10-25 | 1979-10-25 | Electric discharge machining method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6057971B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008047451A1 (en) * | 2006-10-20 | 2008-04-24 | Mitsubishi Electric Corporation | Power supply control unit of electric discharge machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4992696A (en) * | 1972-12-19 | 1974-09-04 |
-
1979
- 1979-10-25 JP JP54138084A patent/JPS6057971B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4992696A (en) * | 1972-12-19 | 1974-09-04 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008047451A1 (en) * | 2006-10-20 | 2008-04-24 | Mitsubishi Electric Corporation | Power supply control unit of electric discharge machine |
DE112006004049B4 (en) * | 2006-10-20 | 2010-06-17 | Mitsubishi Electric Corp. | Power supply control unit for an electric discharge machining apparatus |
JP4833197B2 (en) * | 2006-10-20 | 2011-12-07 | 三菱電機株式会社 | Power control device for electrical discharge machine |
US8420973B2 (en) | 2006-10-20 | 2013-04-16 | Mitsubishi Electric Corporation | Power-supply control device for electrical discharge machining apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6057971B2 (en) | 1985-12-18 |
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