GB975182A - Improvements in or relating to electro-erosion apparatus - Google Patents
Improvements in or relating to electro-erosion apparatusInfo
- Publication number
- GB975182A GB975182A GB42013/60A GB4201360A GB975182A GB 975182 A GB975182 A GB 975182A GB 42013/60 A GB42013/60 A GB 42013/60A GB 4201360 A GB4201360 A GB 4201360A GB 975182 A GB975182 A GB 975182A
- Authority
- GB
- United Kingdom
- Prior art keywords
- negative
- gap
- transistors
- spark
- workpiece
- 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
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
- H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
- H03K3/2823—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
- H03K3/352—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region the devices being thyristors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8159359A CH382323A (de) | 1959-12-08 | 1959-12-08 | Schaltanordnung für Funkenerosion mit unabhängig voneinander einstellbarer Impulsform, -frequenz und -intensität |
Publications (1)
Publication Number | Publication Date |
---|---|
GB975182A true GB975182A (en) | 1964-11-11 |
Family
ID=4538948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB42013/60A Expired GB975182A (en) | 1959-12-08 | 1960-12-06 | Improvements in or relating to electro-erosion apparatus |
Country Status (5)
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL298937A (US07534539-20090519-C00280.png) * | 1962-10-12 | |||
GB1051540A (US07534539-20090519-C00280.png) * | 1963-08-08 | 1900-01-01 | ||
GB1053502A (US07534539-20090519-C00280.png) * | 1964-01-20 | |||
CH407362A (fr) * | 1964-02-25 | 1966-02-15 | Charmilles Sa Ateliers | Procédé d'usinage par décharges électriques intermittentes à impulsions commandées |
CH414034A (fr) * | 1964-03-14 | 1966-05-31 | Charmilles Sa Ateliers | Procédé d'usinage par décharges électriques intermittentes |
DE1292999B (de) * | 1964-09-18 | 1969-04-17 | Aeg Elotherm Gmbh | Schaltungsanordnung zur Erzeugung von Bearbeitungsimpulsen fuer die elektroerosive Metallbearbeitung und Verfahren zu ihrem Betrieb |
DE1293530B (de) * | 1965-03-08 | 1969-04-24 | Krupp Gmbh | Schaltanordnung zur Funkenerosion |
US3439145A (en) * | 1966-03-04 | 1969-04-15 | Elox Inc | Electrical discharge machining power supply circuit |
US3532850A (en) * | 1966-07-27 | 1970-10-06 | Amsted Ind Inc | Power supply for electrical discharge machining |
US3581044A (en) * | 1967-11-02 | 1971-05-25 | Seibu Denki Kogyo Kk | Continuously variable power supply for electric discharge machines capable of maintaining a constant ratio between amplitude and duration of discharge current |
US3531616A (en) * | 1968-01-22 | 1970-09-29 | Elox Inc | Servocontrol circuit for electrical discharge machining apparatus |
US3604885A (en) * | 1968-07-05 | 1971-09-14 | Inoue K | Edm power supply for generating self-adaptive discharge pulses |
USRE28734E (en) * | 1968-07-05 | 1976-03-09 | EDM power supply for generating self-adaptive discharge pulses | |
US3808392A (en) * | 1972-01-11 | 1974-04-30 | Electronic Removal Of Metals I | Astable free-running multivibrator |
CH563835A5 (US07534539-20090519-C00280.png) * | 1972-06-16 | 1975-07-15 | Charmilles Sa Ateliers | |
US3896336A (en) * | 1973-12-20 | 1975-07-22 | Texas Instruments Inc | Solid state fluorescent lamp ballast system |
CH625446A5 (US07534539-20090519-C00280.png) * | 1977-03-18 | 1981-09-30 | Agie Ag Ind Elektronik | |
GB2054436B (en) * | 1979-07-25 | 1984-05-16 | Inoue Japax Res | Electrical discharge machining using controlled low stray capacitances |
JPS6014653B2 (ja) * | 1980-02-26 | 1985-04-15 | 株式会社井上ジャパックス研究所 | 放電加工装置 |
JPS6029246A (ja) * | 1983-07-13 | 1985-02-14 | Fanuc Ltd | 放電加工機における接触感知装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE967197C (de) * | 1952-07-01 | 1957-10-24 | Licentia Gmbh | Distanzscheibe zum Aufbau von Trockengleichrichtern |
US2769078A (en) * | 1953-02-25 | 1956-10-30 | Elox Corp Michigan | Arc machining |
LU32943A1 (US07534539-20090519-C00280.png) * | 1953-12-21 | |||
BE538732A (US07534539-20090519-C00280.png) * | 1954-06-05 | |||
CH337282A (de) * | 1956-03-19 | 1959-03-31 | Agie Ag Ind Elektronik | Verfahren und Einrichtung zur Materialentfernung mittels Funkenerosion |
GB812012A (en) * | 1956-04-12 | 1959-04-15 | Sparcatron Ltd | Improvements in the electric disintegration of conductive materials |
DE1032447B (de) * | 1956-10-11 | 1958-06-19 | Otnima Werk Guthschlag & Co G | Verfahren zur elektroerosiven Metallbearbeitung |
NL226715A (US07534539-20090519-C00280.png) * | 1957-04-10 | |||
US2871410A (en) * | 1957-06-24 | 1959-01-27 | Elox Corp Michigan | Electrical discharge machining watchdog circuit |
DE1052599B (de) * | 1957-08-17 | 1959-03-12 | Klingelnberg Soehne Ferd | Schaltanordnung zur Elektroerosion mit mehrfach unterteilten Elektroden |
US2891195A (en) * | 1957-12-03 | 1959-06-16 | Ca Nat Research Council | Lamp flasher with daylight-responsive inhibiting means |
US2951969A (en) * | 1957-12-12 | 1960-09-06 | Elox Corp Michigan | Edm pulsing circuit |
US2951930A (en) * | 1958-02-26 | 1960-09-06 | Elox Corp Michigan | Pulsed arc machining |
DE1058653B (de) * | 1958-03-03 | 1959-06-04 | Deutsche Edelstahlwerke Ag | Verfahren und Einrichtung zur Erzeugung oszillierender elektrischer Entladungen in Funkenerosionsmaschinen |
US2939065A (en) * | 1958-12-03 | 1960-05-31 | Elox Corp Michigan | Transistorized power feed |
US3018411A (en) * | 1960-05-03 | 1962-01-23 | Robert S Webb | Per pulse cut-off circuit |
-
0
- NL NL258818D patent/NL258818A/xx unknown
-
1959
- 1959-12-08 CH CH8159359A patent/CH382323A/de unknown
-
1960
- 1960-12-02 DE DEA36196A patent/DE1126047B/de active Pending
- 1960-12-05 US US73894A patent/US3292040A/en not_active Expired - Lifetime
- 1960-12-06 GB GB42013/60A patent/GB975182A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL258818A (US07534539-20090519-C00280.png) | |
US3292040A (en) | 1966-12-13 |
CH382323A (de) | 1964-09-30 |
DE1126047B (de) | 1962-03-22 |
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