GB833523A - Manufacture by extrusion of turbine engine blades - Google Patents

Manufacture by extrusion of turbine engine blades

Info

Publication number
GB833523A
GB833523A GB123157A GB123157A GB833523A GB 833523 A GB833523 A GB 833523A GB 123157 A GB123157 A GB 123157A GB 123157 A GB123157 A GB 123157A GB 833523 A GB833523 A GB 833523A
Authority
GB
United Kingdom
Prior art keywords
billet
holes
extrusion
blade portion
filler
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
GB123157A
Inventor
Nelson Hector Kent
George Oswald Eccles
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB123157A priority Critical patent/GB833523A/en
Publication of GB833523A publication Critical patent/GB833523A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/04Making uncoated products by direct extrusion
    • B21C23/14Making other products
    • B21C23/16Making turbo blades or propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

833,523. Making turbine blades; extruding. ROLLS-ROYCE Ltd. Jan. 10, 1958 [Jan. 11, 1957], No. 1231/57. Classes 83 (2) and 83 (4). A method of making a turbine blade from heat-resistant metal comprises providing a billet 10, Fig. 2, with a plurality of drilled holes 11 and inserting a filler therein, partially extruding the billet through a die 12, 13 to form a blade portion of approximately aerofoil shape and to leave an unextruded shroud portion 15, Fig. 7, the holes being thereby deformed into elongated or lenticular cross-section, Fig. 7A (not shown), machining the blade portion and root portion to final shape, machining a tip shroud 19, Fig. 7, from the unextruded portion 15, and removing the filler at any stage subsequent to the extrusion. The billet of nickelchrome alloy, is of substantially rectangular cross-section, Fig. 2A (not shown), and has axial or inclined blind holes filled with mild steel rods located by welding. The billet is then coated with nickel and after heating is extruded through a split die.12, 13, Fig. 3B, coated with colloidal graphite as described in Specification 828,339. The blade portion may be twisted during or after extrusion. For forming an oblique tip shroud, the base of the billet and the corresponding surface of the extrusion die are inclined. Side pieces 23, Fig. 8, are then welded to the extruded portion to provide material for the platform 22 which is machined together with a root shank 21 and fir-tree fixing 20. Holes 24 are drilled in the root to connect with the holes in the blade portion. The filler rods are removed by nitric acid to which is added a wetting agent as described in Specification 833,522. Specification 826,498 also is referred to.
GB123157A 1957-01-11 1957-01-11 Manufacture by extrusion of turbine engine blades Expired GB833523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB123157A GB833523A (en) 1957-01-11 1957-01-11 Manufacture by extrusion of turbine engine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB123157A GB833523A (en) 1957-01-11 1957-01-11 Manufacture by extrusion of turbine engine blades

Publications (1)

Publication Number Publication Date
GB833523A true GB833523A (en) 1960-04-27

Family

ID=9718398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB123157A Expired GB833523A (en) 1957-01-11 1957-01-11 Manufacture by extrusion of turbine engine blades

Country Status (1)

Country Link
GB (1) GB833523A (en)

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