GB1339431A - Method of producing annular members by hot-working - Google Patents

Method of producing annular members by hot-working

Info

Publication number
GB1339431A
GB1339431A GB5522070A GB1339431DA GB1339431A GB 1339431 A GB1339431 A GB 1339431A GB 5522070 A GB5522070 A GB 5522070A GB 1339431D A GB1339431D A GB 1339431DA GB 1339431 A GB1339431 A GB 1339431A
Authority
GB
United Kingdom
Prior art keywords
deformation
temperature
working
phase
hot
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
GB5522070A
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.)
OTHERS
Original Assignee
OTHERS
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 OTHERS filed Critical OTHERS
Publication of GB1339431A publication Critical patent/GB1339431A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21D53/16—Making other particular articles rings, e.g. barrel hoops
    • 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
    • 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
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

1339431 Making rings; working at specified temperatures N A GREKOV G I ARKOVENKO E P SILINA N P SHIFRINA T N SAZONOVA V Y KLEIMENOV I S KVATER M G ZEATKIN V A MIRMELSHTEIN and A I POTAPOV 20 Nov 1970 55220/70 Headings B3V and B3A [Also in Division C7] An annular member of titanium alloy having a double phase α + # structure with up to 30% # phase is made by hot-working and piercing an ingot which is heated to an initial temperature of 50-80‹ C. above the temperature of phase transformation from α to α + # structure before hot-working, the working operations comprising successive multiple plastic axial, radial and circumferential deformations in any order, the respective sums of the degrees of the deformations each being not less than 57%, the temperature of the blank during each deformation being no greater than the initial temperature and not less than the temperatures during the final deformations, and the temperature of the blank during the final deformation being 20- 30‹ C. below the temperature of phase transformation, annealing of the hot-worked and pierced blank than occurring below the temperature of phase transformation. Retaining rings for turbogenerators may be formed from a Ti-alloy having the following weight percentages: Al 6%, Mo 2À5%, Cr 2%, balance Ti, and a phase-transformation temperature of 980‹ C. The sequence of operations may be an axial deformation at 50-80‹ C. above 980‹ C., an axial deformation at 20-50‹ C. above 980‹ C., a radial deformation of 30-40%, a circumferential deformation of 20-30%, an axial deformation of 10-30% at 20-30‹ C. above 980‹ C., a radial deformation up to 30% and a circumferential deformation of 40-50%. Two examples are given, annealing being carried out at 800-900‹ C. for not less than one hour, followed by air-cooling and by secondary heating to 550-650‹ C. for not less than one hour.
GB5522070A 1970-11-04 1970-11-20 Method of producing annular members by hot-working Expired GB1339431A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1631670A CH538898A (en) 1970-11-04 1970-11-04 Manufacturing process for ring-shaped forgings
GB5522070 1970-11-20

Publications (1)

Publication Number Publication Date
GB1339431A true GB1339431A (en) 1973-12-05

Family

ID=25717716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5522070A Expired GB1339431A (en) 1970-11-04 1970-11-20 Method of producing annular members by hot-working

Country Status (2)

Country Link
CH (1) CH538898A (en)
GB (1) GB1339431A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1634971A2 (en) * 2004-08-17 2006-03-15 General Electric Company Application of high strength titanium alloys in last stage turbine buckets having longer vane lengths
CN109112451A (en) * 2018-09-26 2019-01-01 西部超导材料科技股份有限公司 A method of improving TC25 titanium alloy large size bar structural homogenity
CN112893760A (en) * 2021-01-20 2021-06-04 陕西茂凇新材科技有限公司 Production process of high-strength Ti75 titanium ring
CN112916791A (en) * 2021-01-20 2021-06-08 陕西茂凇新材科技有限公司 Production process of high-strength Ti80 titanium ring
CN113953429A (en) * 2021-10-22 2022-01-21 西部金属材料股份有限公司 Preparation method of oversized titanium alloy ring piece

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614040B1 (en) * 1987-04-16 1989-06-30 Cezus Co Europ Zirconium PROCESS FOR THE MANUFACTURE OF A PART IN A TITANIUM ALLOY AND A PART OBTAINED

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1634971A2 (en) * 2004-08-17 2006-03-15 General Electric Company Application of high strength titanium alloys in last stage turbine buckets having longer vane lengths
JP2006070363A (en) * 2004-08-17 2006-03-16 General Electric Co <Ge> Application of high strength titanium alloy in last stage turbine bucket having longer vane length
EP1634971A3 (en) * 2004-08-17 2006-04-05 General Electric Company Application of high strength titanium alloys in last stage turbine buckets having longer vane lengths
CN109112451A (en) * 2018-09-26 2019-01-01 西部超导材料科技股份有限公司 A method of improving TC25 titanium alloy large size bar structural homogenity
CN109112451B (en) * 2018-09-26 2021-07-06 西部超导材料科技股份有限公司 Method for improving structural uniformity of TC25 titanium alloy large-size bar
CN112893760A (en) * 2021-01-20 2021-06-04 陕西茂凇新材科技有限公司 Production process of high-strength Ti75 titanium ring
CN112916791A (en) * 2021-01-20 2021-06-08 陕西茂凇新材科技有限公司 Production process of high-strength Ti80 titanium ring
CN113953429A (en) * 2021-10-22 2022-01-21 西部金属材料股份有限公司 Preparation method of oversized titanium alloy ring piece

Also Published As

Publication number Publication date
CH538898A (en) 1973-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee