GB699687A - Improvements in the manufacture of turbine or compressor blades and the like - Google Patents

Improvements in the manufacture of turbine or compressor blades and the like

Info

Publication number
GB699687A
GB699687A GB1260050A GB1260050A GB699687A GB 699687 A GB699687 A GB 699687A GB 1260050 A GB1260050 A GB 1260050A GB 1260050 A GB1260050 A GB 1260050A GB 699687 A GB699687 A GB 699687A
Authority
GB
United Kingdom
Prior art keywords
dies
bolster
blades
temperature
turbine
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
GB1260050A
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 GB1260050A priority Critical patent/GB699687A/en
Publication of GB699687A publication Critical patent/GB699687A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J17/00—Forge furnaces
    • B21J17/02—Forge furnaces electrically heated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Forging (AREA)

Abstract

699,687. Making turbine blades. HERON, J. A. Aug. 13, 1951 [May 19, 1950], No. 12600/50. Classes 83 (ii) and 83 (iv). Forging.-A method of hot-pressing articles such as turbine or compressor blades to shape between dies is characterized in that the article is maintained at the forging temperature range by electrical-induction-heated dies, the electrical input being regulated by thermo-sensitive heads in the vicinity of the die surfaces to maintain the temperature substantially constant within said range during the operation. Apparatus for carrying out the invention comprises a vertical hydraulic press having upper and lower platens 1, 2 respectively on which are mounted upper and lower bolsters 3, 4 carrying dies 5, 6 of frusto-pyramidal form secured to the bolsters by wedges 10. A pipe 7 supplies liquid coolant to conduits 8 in the bolster 3 and a pipe 9 similarly supplies coolant to the bolster 4. Each die is surrounded by a high-frequency induction coil unit 13, 14 carried on the respective bolster by an insulating block 15, 16 and each unit comprises coils of copper tubing 17 bound with glass tape 18, liquid coolant being passed through the tubing. The two units are connected by a flexible hose 19 and a flexible electrical connection 20. The blades are forged from aluminium-bronze bar stock 21, containing up to 12 per cent aluminium, in one operation of the press. The temperature of the forming surfaces 11, 12 of the dies is held at the forging temperature by inset thermo-couples connected to regulators controlling the high-frequency input to the coil units. The dies may be of high chromium, high nickel austenitic steel, cobalt base alloys containing tungsten, or nickel chromium alloys having a creep strength in the temperature range 750-850‹ C. of about 8-15 tons per square inch.
GB1260050A 1950-05-19 1950-05-19 Improvements in the manufacture of turbine or compressor blades and the like Expired GB699687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1260050A GB699687A (en) 1950-05-19 1950-05-19 Improvements in the manufacture of turbine or compressor blades and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1260050A GB699687A (en) 1950-05-19 1950-05-19 Improvements in the manufacture of turbine or compressor blades and the like

Publications (1)

Publication Number Publication Date
GB699687A true GB699687A (en) 1953-11-11

Family

ID=10007629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1260050A Expired GB699687A (en) 1950-05-19 1950-05-19 Improvements in the manufacture of turbine or compressor blades and the like

Country Status (1)

Country Link
GB (1) GB699687A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210582A1 (en) * 1971-05-10 1972-11-16 United Aircraft Corp., East Hartford, Conn. (V.St.A.) Forging device
DE2744033A1 (en) * 1977-09-01 1979-03-08 Bbc Brown Boveri & Cie TOOL FOR ISOTHERMAL FORGING
US4291566A (en) * 1978-09-16 1981-09-29 Rolls-Royce Limited Method of and apparatus for forging metal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210582A1 (en) * 1971-05-10 1972-11-16 United Aircraft Corp., East Hartford, Conn. (V.St.A.) Forging device
DE2744033A1 (en) * 1977-09-01 1979-03-08 Bbc Brown Boveri & Cie TOOL FOR ISOTHERMAL FORGING
US4291566A (en) * 1978-09-16 1981-09-29 Rolls-Royce Limited Method of and apparatus for forging metal

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