JPS563142A - Power source device for electrospark machining - Google Patents
Power source device for electrospark machiningInfo
- Publication number
- JPS563142A JPS563142A JP7768579A JP7768579A JPS563142A JP S563142 A JPS563142 A JP S563142A JP 7768579 A JP7768579 A JP 7768579A JP 7768579 A JP7768579 A JP 7768579A JP S563142 A JPS563142 A JP S563142A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrodischarge
- interelectrode
- power source
- capacitor
- 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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/04—Apparatus for supplying current to working gap; Electric circuits specially adapted therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
PURPOSE:To raise the machining speed and machining precision by controlling the electrodischarge starting voltage and the electrodischarge energy determining voltage of a capacitor separately. CONSTITUTION:As for the waveform of an interelectrode current between an article 1 to be machined and an electrode wire 2 through the intermediary of the machining liquid, the peak current value thereof is expressed by the formula: IP=E1(C1/L0)<1/2>, while the current pulse width thereof is expressed by the formula: tauP=pi(L0. C1)<1/2>, where E1 is the high-voltage DC power source voltage, C1 is the electrodischarge capacitor thereof, and L0 is the circuit inductance of the main circuit. Accordingly, by changing C1 and E1, the electrodischarge energy can be selected. In addition, by charging the capacitor C0, the electrodischarge starting voltage can be controlled by the low-voltage power source E0 employed for interelectrode servo through a diode D0 when the interelectrode aperture is narrow enough to make discharge. Moreover, a switch SW conducts switching only when the average value Vgo of the voltage Vg impressed on C0 for detecting the interelectrode length is found between VL and VH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7768579A JPS6052889B2 (en) | 1979-06-20 | 1979-06-20 | Power supply device for electrical discharge machining |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7768579A JPS6052889B2 (en) | 1979-06-20 | 1979-06-20 | Power supply device for electrical discharge machining |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS563142A true JPS563142A (en) | 1981-01-13 |
JPS6052889B2 JPS6052889B2 (en) | 1985-11-21 |
Family
ID=13640743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7768579A Expired JPS6052889B2 (en) | 1979-06-20 | 1979-06-20 | Power supply device for electrical discharge machining |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052889B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539264A (en) * | 1982-10-12 | 1985-09-03 | Sony Corporation | Magnetic recording medium |
JPS61209738A (en) * | 1984-11-01 | 1986-09-18 | リチヤ−ド イ− サツクストン | Production unit for coil spring |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62166891U (en) * | 1986-04-11 | 1987-10-23 | ||
JPS6318189U (en) * | 1986-07-21 | 1988-02-06 |
-
1979
- 1979-06-20 JP JP7768579A patent/JPS6052889B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539264A (en) * | 1982-10-12 | 1985-09-03 | Sony Corporation | Magnetic recording medium |
JPS61209738A (en) * | 1984-11-01 | 1986-09-18 | リチヤ−ド イ− サツクストン | Production unit for coil spring |
Also Published As
Publication number | Publication date |
---|---|
JPS6052889B2 (en) | 1985-11-21 |
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