GB836001A - Improvements relating to hollow turbine and like blades - Google Patents

Improvements relating to hollow turbine and like blades

Info

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
Application number
GB2896355A
Inventor
Alexander Barbour Graham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henry Wiggin and Co Ltd
Original Assignee
Henry Wiggin and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henry Wiggin and Co Ltd filed Critical Henry Wiggin and Co Ltd
Priority to GB2896355A priority Critical patent/GB836001A/en
Priority to FR1162664D priority patent/FR1162664A/en
Publication of GB836001A publication Critical patent/GB836001A/en
Expired legal-status Critical Current

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.
GB2896355A 1955-10-11 1955-10-11 Improvements relating to hollow turbine and like blades Expired GB836001A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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