JPS5771725A - Electrical discharge machine - Google Patents
Electrical discharge machineInfo
- Publication number
- JPS5771725A JPS5771725A JP14385780A JP14385780A JPS5771725A JP S5771725 A JPS5771725 A JP S5771725A JP 14385780 A JP14385780 A JP 14385780A JP 14385780 A JP14385780 A JP 14385780A JP S5771725 A JPS5771725 A JP S5771725A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrical discharge
- exceeds
- output
- switching element
- 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
-
- 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
- B23H2300/00—Power source circuits or energization
- B23H2300/20—Relaxation circuit power supplies for supplying the machining current, e.g. capacitor or inductance energy storage circuits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
PURPOSE:To prevent electrical discharge from centalizing, an electrical discharge machined surface from roughening and a wire electrode from breaking by a method wherein when the gap voltage of electrical discharge machining exceeds a desired level a switching element can be placed automatically into an OFF state. CONSTITUTION:When a machining gap voltage VG rises, a voltage VA also given to one input terminal of a voltage comparator COM rises. And when the voltage VA exceeds the standard voltage Vref, the comparator COM takes an output ''1'', the pulse generator PUL also takes an output ''1'' in that time, a gate circuit GAT does not give pulse signals from an oscillator OSC2 to a switching element Q2 to turn the element Q2 OFF automatically.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14385780A JPS603931B2 (en) | 1980-10-15 | 1980-10-15 | Electric discharge machining equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14385780A JPS603931B2 (en) | 1980-10-15 | 1980-10-15 | Electric discharge machining equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5771725A true JPS5771725A (en) | 1982-05-04 |
JPS603931B2 JPS603931B2 (en) | 1985-01-31 |
Family
ID=15348576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14385780A Expired JPS603931B2 (en) | 1980-10-15 | 1980-10-15 | Electric discharge machining equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS603931B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4673789A (en) * | 1982-05-25 | 1987-06-16 | Mitsubishi Denki Kabushiki Kaisha | Power source for wire cut electrical discharge machining |
US4689462A (en) * | 1984-03-05 | 1987-08-25 | Brother Kogyo Kabushiki Kaisha | Wire cutting type electrical discharge machining system |
US4731514A (en) * | 1985-09-27 | 1988-03-15 | Mohri Naotake | Method for predicting breaking of wire electrode in wire electrode type electric discharge machining operation |
-
1980
- 1980-10-15 JP JP14385780A patent/JPS603931B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4673789A (en) * | 1982-05-25 | 1987-06-16 | Mitsubishi Denki Kabushiki Kaisha | Power source for wire cut electrical discharge machining |
US4689462A (en) * | 1984-03-05 | 1987-08-25 | Brother Kogyo Kabushiki Kaisha | Wire cutting type electrical discharge machining system |
US4731514A (en) * | 1985-09-27 | 1988-03-15 | Mohri Naotake | Method for predicting breaking of wire electrode in wire electrode type electric discharge machining operation |
Also Published As
Publication number | Publication date |
---|---|
JPS603931B2 (en) | 1985-01-31 |
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