GB584623A - Improvements in or relating to the forging of turbine blades - Google Patents

Improvements in or relating to the forging of turbine blades

Info

Publication number
GB584623A
GB584623A GB94345A GB94345A GB584623A GB 584623 A GB584623 A GB 584623A GB 94345 A GB94345 A GB 94345A GB 94345 A GB94345 A GB 94345A GB 584623 A GB584623 A GB 584623A
Authority
GB
United Kingdom
Prior art keywords
blank
forging
stretched
turbine blades
dies
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
GB94345A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB94345A priority Critical patent/GB584623A/en
Publication of GB584623A publication Critical patent/GB584623A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K3/00—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like
    • B21K3/04—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like blades, e.g. for turbines; Upsetting of blade roots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • B21J9/08—Swaging presses; Upsetting presses equipped with devices for heating the work-piece

Landscapes

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

Abstract

584,623. Making turbine blades. ARON, H. Jan. 11, 1945, No. 943. [Classes 83 (ii) and 83 (iv)] Streching ; forging ; dies.-A method of forging turbine blades having enlargements at one or both ends from a blank having a cross-section substantially equal to that of the enlargements comprises heating the central portion of the blank by clamping its ends between electrodes and passing a current therethrough and subjecting the intermediate portion to a limited stretching operation so as to reduce its cross-section and then reheating the blank and bringing it to final shape between dropforging dies. The blank 23 is clamped at its ends between electrodes 24, 25 and 26, 27 and stretched to form a central reduced portion 28 as shown in Fig. 3. In a modification, Fig. 4, a double length blank is clamped at the centre also in electrodes 34, 35 and stretched to form two reduced portions 40, 41. The blank is then cut in half to form two blanks for the final drop-forging operation between dies 29, 30 shown in Fig. 5. If a blade having an enlargement at one end only is required, the stretched blank would be cut in the centre of the stretched portion to form two blade blanks. Specifications 514,728 and 569,514 are referred to.
GB94345A 1945-01-11 1945-01-11 Improvements in or relating to the forging of turbine blades Expired GB584623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB94345A GB584623A (en) 1945-01-11 1945-01-11 Improvements in or relating to the forging of turbine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB94345A GB584623A (en) 1945-01-11 1945-01-11 Improvements in or relating to the forging of turbine blades

Publications (1)

Publication Number Publication Date
GB584623A true GB584623A (en) 1947-01-20

Family

ID=9713237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB94345A Expired GB584623A (en) 1945-01-11 1945-01-11 Improvements in or relating to the forging of turbine blades

Country Status (1)

Country Link
GB (1) GB584623A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614487A1 (en) * 2004-07-09 2006-01-11 Snecma Process of geometric construction of a flash for forging a workpiece of complex shape

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614487A1 (en) * 2004-07-09 2006-01-11 Snecma Process of geometric construction of a flash for forging a workpiece of complex shape
FR2872721A1 (en) * 2004-07-09 2006-01-13 Snecma Moteurs Sa METHOD FOR THE GEOMETRIC CONSTRUCTION OF A CORRELATION CORD OF FORGING A COMPLEX PIECE
CN100462160C (en) * 2004-07-09 2009-02-18 斯内克马公司 Method for forming geometrical profile of flash land in forging of complicated parts
US7565851B2 (en) 2004-07-09 2009-07-28 Snecma Geometrical construction process for a flash land for the forging of a complex part

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