GB1400118A - Method for the production of hollow powder metal articles - Google Patents

Method for the production of hollow powder metal articles

Info

Publication number
GB1400118A
GB1400118A GB4555773A GB4555773A GB1400118A GB 1400118 A GB1400118 A GB 1400118A GB 4555773 A GB4555773 A GB 4555773A GB 4555773 A GB4555773 A GB 4555773A GB 1400118 A GB1400118 A GB 1400118A
Authority
GB
United Kingdom
Prior art keywords
mould
assembly
core
powder
alloy
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
GB4555773A
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.)
Crucible Inc
Original Assignee
Crucible Inc
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 Crucible Inc filed Critical Crucible Inc
Publication of GB1400118A publication Critical patent/GB1400118A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
    • B22F3/045—Semi-isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1400118 Forming hollow bodies CRUCIBLE Inc 28 Sept 1973 [13 Nov 1972] 45557/73 Heading C7D A hollow body is formed under isostatic pressure from alloy powder 22 in the assembly shown, which comprises mould 12, having a mould cavity 14, and core 16. The core 16 is hollow, the interior communicating with the exterior of the mould 12, and the powder is placed between the cavity walls and the core. The assembly, held in a cylinder 24, is then heated to an intermediate temperature, e.g. 600‹F, to evaporate water, reduce oxides, and outgas the assembly, whereupon the mould is sealed and the temperature is raised to 1000‹- 2300‹F. The assembly is placed in an autoclave containing Ar, N 2 or He at 500-30,000 p.s.i. and the resulting compact has a density greater than 95% of the theoretical density. The powder is of a super alloy or Ti-based, alloy, several examples of which are given.
GB4555773A 1972-11-13 1973-09-28 Method for the production of hollow powder metal articles Expired GB1400118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30608172A 1972-11-13 1972-11-13

Publications (1)

Publication Number Publication Date
GB1400118A true GB1400118A (en) 1975-07-16

Family

ID=23183707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4555773A Expired GB1400118A (en) 1972-11-13 1973-09-28 Method for the production of hollow powder metal articles

Country Status (4)

Country Link
JP (1) JPS4978607A (en)
FR (1) FR2206147A1 (en)
GB (1) GB1400118A (en)
IT (1) IT996340B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669144A1 (en) * 2004-12-10 2006-06-14 Rolls-Royce Plc A method of manufacturing a metal article by powder metallurgy

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1557744A (en) * 1976-06-01 1979-12-12 Special Metals Corp Process and apparatus for producing aticles of complex shape
FR2553016B1 (en) * 1983-10-11 1989-07-28 Nyby Uddeholm Powder PROCESS AND DEVICE FOR THE MANUFACTURE OF MOLDED PARTS BY HOT PRESSING OF METAL POWDER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669144A1 (en) * 2004-12-10 2006-06-14 Rolls-Royce Plc A method of manufacturing a metal article by powder metallurgy
US7407622B2 (en) 2004-12-10 2008-08-05 Rolls-Royce Plc Method of manufacturing a metal article by powder metallurgy

Also Published As

Publication number Publication date
FR2206147A1 (en) 1974-06-07
JPS4978607A (en) 1974-07-29
DE2349776B2 (en) 1975-07-24
DE2349776A1 (en) 1974-05-22
IT996340B (en) 1975-12-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees