GB898140A - Improvements in or relating to the manufacture of sintered metal articles - Google Patents
Improvements in or relating to the manufacture of sintered metal articlesInfo
- Publication number
- GB898140A GB898140A GB2763559A GB2763559A GB898140A GB 898140 A GB898140 A GB 898140A GB 2763559 A GB2763559 A GB 2763559A GB 2763559 A GB2763559 A GB 2763559A GB 898140 A GB898140 A GB 898140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- compact
- formers
- core
- heating
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Abstract
Sintered metal articles containing voids, ducts or holes are produced by compacting metal powder about formers composed of a core of a metal e.g. Cd volatilisable at a temperature lower than the sintering temperature, coated with at least one metal which is a constituent of the metal powder and which dissolves in or combines with the core metal, heating the compact to volatilise the core metal and finally sintering the compact. In an example powders to form a nickel based alloy containing 20% Cr, 16% Co, 2,35% Ti, 1,35% Al, 0,07%-0,1%C. and 0,05%B are packed in layers in a floating die with formers consisting of cadmium wire 0,05 inches diameter coated with a layer of nickel 0,004 inches thick. Each powder layer is prepressed at 1 1/2 tons per square inch and the whole assembly is compacted at 35 tons per square inch. The ends of the compact are machined to expose the ends of the formers and the cadmium is then volatilised by heating the compact at 650 DEG C. in vacuum. Final sintering is carried out at 1300 DEG C. to 1325 DEG C. in vacuum or in a hydrogen atmosphere. Specification 611,466 is referred to.ALSO:Sintered metal articles containing voids, ducts or holes are produced by compacting metal powder about formers composed of a core of a metal e.g. Cd volatilisable at a temperature lower than the sintering temperature coated with at least one metal which is a constituent of the metal powder and which dissolves in or combines with the core metal, heating the compact to volatilise the core metal and finally sintering the compact. In an example powders to form a nickel based alloy are packed in layers in a floating die with formers consisting of cadium wire 0,05 inches diameter coated with a layer of nickel 0,004 inches thick. Each powder layer is prepressed at 1 1/2 tons per square inch and the whole assembly is compacted at 35 tons per square inch. The ends of the compact are machined to expose the ends of the formers and the cadmium is then volatilised by heating the compact at 650 DEG C. in vacuum. Specification 611,466 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2763559A GB898140A (en) | 1959-08-12 | 1959-08-12 | Improvements in or relating to the manufacture of sintered metal articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2763559A GB898140A (en) | 1959-08-12 | 1959-08-12 | Improvements in or relating to the manufacture of sintered metal articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB898140A true GB898140A (en) | 1962-06-06 |
Family
ID=10262813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2763559A Expired GB898140A (en) | 1959-08-12 | 1959-08-12 | Improvements in or relating to the manufacture of sintered metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB898140A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3852045A (en) * | 1972-08-14 | 1974-12-03 | Battelle Memorial Institute | Void metal composite material and method |
| GB2271526A (en) * | 1992-10-16 | 1994-04-20 | Gt B Components Ltd | Manufacture of apertured articles by compression moulding |
| DE10335267B3 (en) * | 2003-08-01 | 2005-03-10 | Karlsruhe Forschzent | Process to make a tube from nano-crystalline material packed in a cartridge case surrounded by explosive |
| EP3210693A1 (en) * | 2016-02-29 | 2017-08-30 | General Electric Company | Casting with a second metal component formed around a first metal component using hot isostatic pressing |
-
1959
- 1959-08-12 GB GB2763559A patent/GB898140A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3852045A (en) * | 1972-08-14 | 1974-12-03 | Battelle Memorial Institute | Void metal composite material and method |
| GB2271526A (en) * | 1992-10-16 | 1994-04-20 | Gt B Components Ltd | Manufacture of apertured articles by compression moulding |
| GB2271526B (en) * | 1992-10-16 | 1995-06-21 | Gt B Components Ltd | Moulding of apertured articles |
| DE10335267B3 (en) * | 2003-08-01 | 2005-03-10 | Karlsruhe Forschzent | Process to make a tube from nano-crystalline material packed in a cartridge case surrounded by explosive |
| EP3210693A1 (en) * | 2016-02-29 | 2017-08-30 | General Electric Company | Casting with a second metal component formed around a first metal component using hot isostatic pressing |
| CN107127346A (en) * | 2016-02-29 | 2017-09-05 | 通用电气公司 | The casting of the second hardware is formed around the first hardware using high temperature insostatic pressing (HIP) |
| US10343218B2 (en) | 2016-02-29 | 2019-07-09 | General Electric Company | Casting with a second metal component formed around a first metal component using hot isostactic pressing |
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