FR2288584A1 - Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades - Google Patents
Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine bladesInfo
- Publication number
- FR2288584A1 FR2288584A1 FR7435639A FR7435639A FR2288584A1 FR 2288584 A1 FR2288584 A1 FR 2288584A1 FR 7435639 A FR7435639 A FR 7435639A FR 7435639 A FR7435639 A FR 7435639A FR 2288584 A1 FR2288584 A1 FR 2288584A1
- Authority
- FR
- France
- Prior art keywords
- block
- mould
- plastic
- guide block
- turbine blades
- 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.)
- Withdrawn
Links
- 239000002826 coolant Substances 0.000 title abstract 2
- 238000011515 electrochemical drilling Methods 0.000 title abstract 2
- 238000005553 drilling Methods 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/16—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass plates with holes of very small diameter, e.g. for spinning or burner nozzles
-
- 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
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
- B23H7/265—Mounting of one or more thin electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
A guide block for electrodes employed in electrochemical drilling, is mfd. by (a) inserting several rod cores in specific positions in the walls of a mould; (b) casting a plastic in the mould to form the block; (c) removing the cores from the block and the mould-walls; (d) extracting the block from the mould; (e) inserting dielectric tubes in the holes made by the cores, the tubes being used to guide the electrodes. The mould walls are pref. fixed to a base plate carrying a threaded insert which forms part of the cast block, the insert then being used to mount the guide block in the drilling machine. The block is used in e.g. drilling coolant holes in turbine blades. A row of non-parallel holes can be simultaneously drilled in the blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7435639A FR2288584A1 (en) | 1974-10-24 | 1974-10-24 | Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7435639A FR2288584A1 (en) | 1974-10-24 | 1974-10-24 | Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2288584A1 true FR2288584A1 (en) | 1976-05-21 |
Family
ID=9144401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7435639A Withdrawn FR2288584A1 (en) | 1974-10-24 | 1974-10-24 | Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2288584A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2375948A1 (en) * | 1976-12-29 | 1978-07-28 | Gen Electric | METHOD FOR MANUFACTURING A COOLING SLOT OF THE LEAKING EDGE OF A TURBINE VANE |
| EP1524059A3 (en) * | 2003-10-15 | 2006-05-24 | General Electric Company | An apparatus and method for machining in confined spaces |
-
1974
- 1974-10-24 FR FR7435639A patent/FR2288584A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2375948A1 (en) * | 1976-12-29 | 1978-07-28 | Gen Electric | METHOD FOR MANUFACTURING A COOLING SLOT OF THE LEAKING EDGE OF A TURBINE VANE |
| EP1524059A3 (en) * | 2003-10-15 | 2006-05-24 | General Electric Company | An apparatus and method for machining in confined spaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |