GB908195A - Improvements in and relating to methods and apparatus for machining metal by spark erosion - Google Patents
Improvements in and relating to methods and apparatus for machining metal by spark erosionInfo
- Publication number
- GB908195A GB908195A GB27972/60A GB2797260A GB908195A GB 908195 A GB908195 A GB 908195A GB 27972/60 A GB27972/60 A GB 27972/60A GB 2797260 A GB2797260 A GB 2797260A GB 908195 A GB908195 A GB 908195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- gap
- dielectric
- workpiece
- progressively
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
908,195. Electro.erosion. COLE, M. July 18, 1961 [Aug. 12, 1960], No. 27972/60. Class 83 (4). In the machining of a metal workpiece 13 by spark erosion within a dielectric fluid 11, a rotary electrode 14 is used to assist flow of dielectric through the gap, and the energy of the discharges is progressively reduced whereby the machined surface is made progressively flatter and smoother. A brass or tungsten electrode 14 has on its lower surface a plurality of radial grooves 25, Fig. 2 (not shown), and is rotated through a belt drive 19 by an A.C. motor 20. For some purposes when contamination is to be avoided the electrode may be of the same metal as the workpiece. A servomotor 30 responsive to the average voltage in the gap, adjusts the electrode spacing through gearing 17. Direct current is supplied through resistor 23 to charge a capacitor 22. Both the resistance and capacitor may be variable for progressively reducing the spark energy, or they may comprise a plurality of components with selective switching. The potential of the D.C. source may also be variable. Kerosene, light transformer oil or distilled water is used for the dielectric and due to the rotation of the electrode, debris is continuously removed from the gap. The surface of the machined workpiece may be given a light mechanical or electrolytic polishing when metallographic examination is necessary. A specific example is given.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27972/60A GB908195A (en) | 1960-08-12 | 1960-08-12 | Improvements in and relating to methods and apparatus for machining metal by spark erosion |
| US124953A US3109086A (en) | 1960-08-12 | 1961-07-18 | Methods and apparatus for machining metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27972/60A GB908195A (en) | 1960-08-12 | 1960-08-12 | Improvements in and relating to methods and apparatus for machining metal by spark erosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB908195A true GB908195A (en) | 1962-10-17 |
Family
ID=10268223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27972/60A Expired GB908195A (en) | 1960-08-12 | 1960-08-12 | Improvements in and relating to methods and apparatus for machining metal by spark erosion |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3109086A (en) |
| GB (1) | GB908195A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088032A (en) * | 1975-02-24 | 1978-05-09 | Easco-Sparcatron, Inc. | Servo head structure |
| US5041709A (en) * | 1988-05-03 | 1991-08-20 | Schneider James R | Attachment device for electrical discharge machine |
| CN110293272A (en) * | 2019-08-08 | 2019-10-01 | 安徽理工大学 | A kind of electric spark and electrolysis electric discharge Compound Machining experimental rig for semicircle orifice |
| CN112846427A (en) * | 2021-01-04 | 2021-05-28 | 张晓民 | Operation method of electric spark machining guide device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1138875B (en) * | 1960-09-07 | 1962-10-31 | Aeg | Circuit arrangement for a generator for the electrolytic processing of metallically conductive materials |
| US3396259A (en) * | 1965-08-30 | 1968-08-06 | Atomic Energy Commission Usa | Method for electro-discharge machining |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH349717A (en) * | 1957-03-18 | 1960-10-31 | Agie Ag Ind Elektronik | Electro-discharge grinding process and equipment for its implementation |
-
1960
- 1960-08-12 GB GB27972/60A patent/GB908195A/en not_active Expired
-
1961
- 1961-07-18 US US124953A patent/US3109086A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088032A (en) * | 1975-02-24 | 1978-05-09 | Easco-Sparcatron, Inc. | Servo head structure |
| US5041709A (en) * | 1988-05-03 | 1991-08-20 | Schneider James R | Attachment device for electrical discharge machine |
| CN110293272A (en) * | 2019-08-08 | 2019-10-01 | 安徽理工大学 | A kind of electric spark and electrolysis electric discharge Compound Machining experimental rig for semicircle orifice |
| CN110293272B (en) * | 2019-08-08 | 2024-04-26 | 安徽理工大学 | Electric spark electrolytic discharge composite machining test device for semicircular hole |
| CN112846427A (en) * | 2021-01-04 | 2021-05-28 | 张晓民 | Operation method of electric spark machining guide device |
Also Published As
| Publication number | Publication date |
|---|---|
| US3109086A (en) | 1963-10-29 |
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