GB1024699A - Formation of cavities in metals - Google Patents
Formation of cavities in metalsInfo
- Publication number
- GB1024699A GB1024699A GB943264A GB943264A GB1024699A GB 1024699 A GB1024699 A GB 1024699A GB 943264 A GB943264 A GB 943264A GB 943264 A GB943264 A GB 943264A GB 1024699 A GB1024699 A GB 1024699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- cavity
- metal article
- work piece
- electrolyte
- 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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/30—Application in turbines
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
A method of forming a cavity in a metal article comprises causing a relative rotational movement to occur between an electrode 10 having substantially the same shape as the cavity to be formed and the metal article whereby the electrode is caused to approach and engage the metal article, an electric potential <PICT:1024699/C6-C7/1> being applied between the electrode and work piece, which are separated by an electrolyte so that metal is electrolytically removed from the work piece as the electrode moves progressively into said work piece to form a cavity. After producing the cavity the electrode is preferably partly withdrawn from the metal article and the current density reduced for a predetermined time prior to complete removal of the electrode from the article. In the embodiment shown the electrode 10 is mounted on a bar 16 which is pivoted about, but off-set from a driving shaft 13 which is connected to an electric motor 12 via a reduction gear box 14 (Fig. 1, not shown). The electrode, which with the workpiece is mounted within a gas tight cell 15, is formed with a plurality of internal passages 20, 25 and 26 through which electrolyte is supplied from a tank 21 via a filter 22, pump 23 (Fig. 1, not shown) and hose 24. Spent electrolyte is returned to the tank 21. A current of air is passed through the cell 15 to remove hydrogen formed therein. After withdrawing the electrode from one cavity 30 it is re-positioned ready to start forming the next nozzle.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB943264A GB1024699A (en) | 1964-03-05 | 1964-03-05 | Formation of cavities in metals |
| FR7596A FR1425873A (en) | 1964-03-05 | 1965-03-02 | Method and apparatus for forming cavities in metals |
| CH305165A CH422190A (en) | 1964-03-05 | 1965-03-04 | Method and apparatus for electro-erosion forming a cavity in a metallic article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB943264A GB1024699A (en) | 1964-03-05 | 1964-03-05 | Formation of cavities in metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1024699A true GB1024699A (en) | 1966-03-30 |
Family
ID=9871865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB943264A Expired GB1024699A (en) | 1964-03-05 | 1964-03-05 | Formation of cavities in metals |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH422190A (en) |
| FR (1) | FR1425873A (en) |
| GB (1) | GB1024699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115398A (en) * | 1975-04-02 | 1976-10-09 | Mitsubishi Heavy Ind Ltd | Method and apparatus for moving electric discharge machining electrode for cutting impeller |
-
1964
- 1964-03-05 GB GB943264A patent/GB1024699A/en not_active Expired
-
1965
- 1965-03-02 FR FR7596A patent/FR1425873A/en not_active Expired
- 1965-03-04 CH CH305165A patent/CH422190A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115398A (en) * | 1975-04-02 | 1976-10-09 | Mitsubishi Heavy Ind Ltd | Method and apparatus for moving electric discharge machining electrode for cutting impeller |
| JPS5841979B2 (en) * | 1975-04-02 | 1983-09-16 | 三菱重工業株式会社 | Discharge electrode moving device for impeller processing |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1425873A (en) | 1966-01-24 |
| CH422190A (en) | 1966-10-15 |
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