GB853188A - Improvements in or relating to the extrusion of metals - Google Patents

Improvements in or relating to the extrusion of metals

Info

Publication number
GB853188A
GB853188A GB3705056A GB3705056A GB853188A GB 853188 A GB853188 A GB 853188A GB 3705056 A GB3705056 A GB 3705056A GB 3705056 A GB3705056 A GB 3705056A GB 853188 A GB853188 A GB 853188A
Authority
GB
United Kingdom
Prior art keywords
billet
extrusion
holes
root
molybdenum
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
GB3705056A
Inventor
Campbell Clouston Horne
Harold William George Hignett
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 GB3705056A priority Critical patent/GB853188A/en
Publication of GB853188A publication Critical patent/GB853188A/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
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated

Landscapes

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

Abstract

853,188. Making turbine blades; extruding; destructible cores. WIGGIN & CO. Ltd., H. Nov. 27, 1957 [Dec. 4, 1956], No. 37050/56. Classes 83 (2) and 83 (4). An extrusion billet has one or more blind holes filled with a removable material which flows during extrusion and at the inner end of each hole there is provided a small plug of a material of different density to the billet metal. In the extrusion of turbine blades the billet is of a creep-resisting nickel-chromium or nickel-chromium-cobalt base alloy, the filler is of an ironmanganese-titanium alloy and the plug is of molybdenum or a molybdenum-titanium alloy. The billet is first extruded through a die of aerofoil profile and the solid end is then upset to form the root; alternatively the root may comprise a non-extruded part of the billet. After extrusion, and before or after upsetting, the workpiece is examined radiographically whereby the denser material of the plugs shows the inner ends of the holes and enables further holes to be drilled through the root to intersect the filled holes. The leading end of the aerofoil part may be subsequently upset to form a shroud.
GB3705056A 1956-12-04 1956-12-04 Improvements in or relating to the extrusion of metals Expired GB853188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3705056A GB853188A (en) 1956-12-04 1956-12-04 Improvements in or relating to the extrusion of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3705056A GB853188A (en) 1956-12-04 1956-12-04 Improvements in or relating to the extrusion of metals

Publications (1)

Publication Number Publication Date
GB853188A true GB853188A (en) 1960-11-02

Family

ID=10393336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3705056A Expired GB853188A (en) 1956-12-04 1956-12-04 Improvements in or relating to the extrusion of metals

Country Status (1)

Country Link
GB (1) GB853188A (en)

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