GB836001A - Improvements relating to hollow turbine and like blades - Google Patents
Improvements relating to hollow turbine and like bladesInfo
- Publication number
- GB836001A GB836001A GB2896355A GB2896355A GB836001A GB 836001 A GB836001 A GB 836001A GB 2896355 A GB2896355 A GB 2896355A GB 2896355 A GB2896355 A GB 2896355A GB 836001 A GB836001 A GB 836001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holes
- billet
- root
- filled
- shape
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/16—Making turbo blades or propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/24—Manufacture essentially without removing material by extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
836,001. Making turbine and like blades; extruding. WIGGIN & CO. Ltd., H. Oct. 5, 1956 [Oct. 11, 1955], No. 28963/55. Classes 83 (2) and 83 (4). A turbine or compressor blade is made by partially extruding through a die a metal billet 1 having one or more transverse holes 2 filled with a material which will flow with the billet metal and may subsequently be removed, whereby during the extrusion the holes are converted into U-shape 6, Fig. 7, with the end of each arm of the U lying in a side face of the root and the arm then curving inwards to run longitudinally of the blade. Four circular holes are first drilled in a rectangular billet, the holes are then filled and the billet is extruded parallel to the holes to elongate it and reduce its thickness; the holes are thus converted into elliptical shape, Fig. 1 (not shown). A billet length 1, Fig. 2, is then cut from the extruded billet and is itself extruded in a direction perpendicular to the filled holes 2 through a die of aerofoil shape. The. extrusion is stopped whilst enough unextruded billet metal remains in the container to form the root. The root may be subsequently converted into fir-tree shape, Fig. 9 (not shown), by forging and machining steps. A shroud 8, Fig. 7, may be formed at the tip end by upsetting. The holes may be exposed at the shroud end by machining, Fig. 8 (not shown). The filler is finally removed by acid leaching. Specification 763,141 is referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2896355A GB836001A (en) | 1955-10-11 | 1955-10-11 | Improvements relating to hollow turbine and like blades |
| FR1162664D FR1162664A (en) | 1955-10-11 | 1956-10-09 | Improvements to hollow turbine blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2896355A GB836001A (en) | 1955-10-11 | 1955-10-11 | Improvements relating to hollow turbine and like blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB836001A true GB836001A (en) | 1960-06-01 |
Family
ID=10284031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2896355A Expired GB836001A (en) | 1955-10-11 | 1955-10-11 | Improvements relating to hollow turbine and like blades |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1162664A (en) |
| GB (1) | GB836001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692976A (en) * | 1985-07-30 | 1987-09-15 | Westinghouse Electric Corp. | Method of making scalable side entry turbine blade roots |
-
1955
- 1955-10-11 GB GB2896355A patent/GB836001A/en not_active Expired
-
1956
- 1956-10-09 FR FR1162664D patent/FR1162664A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692976A (en) * | 1985-07-30 | 1987-09-15 | Westinghouse Electric Corp. | Method of making scalable side entry turbine blade roots |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1162664A (en) | 1958-09-16 |
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