GB1400118A - Method for the production of hollow powder metal articles - Google Patents
Method for the production of hollow powder metal articlesInfo
- 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
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.
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)
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)
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 |
-
1973
- 1973-09-28 GB GB4555773A patent/GB1400118A/en not_active Expired
- 1973-10-22 JP JP11802773A patent/JPS4978607A/ja active Pending
- 1973-10-26 IT IT5337673A patent/IT996340B/en active
- 1973-11-05 FR FR7339205A patent/FR2206147A1/fr not_active Withdrawn
Cited By (2)
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 |