GB610011A - Method and press for compacting metallic powder - Google Patents
Method and press for compacting metallic powderInfo
- Publication number
- GB610011A GB610011A GB15391/44A GB1539144A GB610011A GB 610011 A GB610011 A GB 610011A GB 15391/44 A GB15391/44 A GB 15391/44A GB 1539144 A GB1539144 A GB 1539144A GB 610011 A GB610011 A GB 610011A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plungers
- compact
- punch
- cams
- fill
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/261—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks by cams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
610,011. Moulding metal compacts. AMERICAN ELECTRO METAL CORPORATION. Aug. 11, 1944, No. 15391. Convention date, Sept. 1, 1943. [Class 87(ii)] A method of pressing a loose fill of metallic powder into a compact having a shape including portions (e.g., A and B, Fig. 6) whose thicknessses, measured in the direction of pressing, differ considerably, the ratio of the thicknesses of uncompressed fill to the thicknesses of compact equalling the ratio of the density of the compact to the density of the fill, is characterized by the steps, carried out simultaneously, of compressing the fill portions individually, unyieldingly and in the same compression ratio. A telescopic punch may be used. From the dimensions of the finished compact 51 and a known compression ratio, the dimensions of the mould cavity 60 to be filled with metal powder are calculated. In Fig. 5 the powder is shown in the process of compression. The lower telescopic punch comprises the independent plungers 66, 67 which are actuated by the cams 70, 71 by means of pins 76, 77 and 80, 81 engaging in opposite grooves 78, 79 and 82, 83. The upper plungers 68, 69 are actuated in the same manner by the cams 73, 74, the two cam shafts 72, 75 being driven in synchronism. The grooves in the cams are so designed that the punches start from their original positions, Fig. 4, and reach their final positions, Fig. 6, simultaneously. After this final position has been reached the upper punch is withdrawn completely from the mould and the plungers 68. 69 returned to their original positions, Fig. 4. Meanwhile, plunger 67 is driven further upwardly to eject the compact, the plunger 66 remaining in its final position during this operation. The lower plungers are then returned to their starting positions. Instead of cams or eccentrics, individual hydraulic, geared electric motor &c. drives may be used to operate the plungers through levers. A single compression method may be used with a stationary bottom to the mould and a single telescopic punch such as 68, 69. Alternatively the bottom punch may be telescopic and the upper punch formed from a single plunger in the usual manner. Compacts suitable for use (after sintering) as rotors in electric (impulse) generators may be made.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US610011XA | 1943-09-01 | 1943-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB610011A true GB610011A (en) | 1948-10-11 |
Family
ID=22033026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15391/44A Expired GB610011A (en) | 1943-09-01 | 1944-08-11 | Method and press for compacting metallic powder |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB610011A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888715A (en) * | 1957-03-21 | 1959-06-02 | Stokes F J Corp | Proportional pressing |
US3060506A (en) * | 1957-06-24 | 1962-10-30 | Uschmann Curt | Molding press |
EP0097027A2 (en) * | 1982-06-16 | 1983-12-28 | Ipm Corporation | Densification of selected areas of powder metal parts |
GB2265567A (en) * | 1992-03-23 | 1993-10-06 | Mannesmann Ag | Producing stepped pressed articles |
IT201700049139A1 (en) * | 2017-05-05 | 2018-11-05 | C M S Di Mancini Walter & C Snc | Press for the production of tablets |
-
1944
- 1944-08-11 GB GB15391/44A patent/GB610011A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888715A (en) * | 1957-03-21 | 1959-06-02 | Stokes F J Corp | Proportional pressing |
US3060506A (en) * | 1957-06-24 | 1962-10-30 | Uschmann Curt | Molding press |
EP0097027A2 (en) * | 1982-06-16 | 1983-12-28 | Ipm Corporation | Densification of selected areas of powder metal parts |
EP0097027A3 (en) * | 1982-06-16 | 1985-11-27 | Ipm Corporation | Densification of selected areas of powder metal parts |
GB2265567A (en) * | 1992-03-23 | 1993-10-06 | Mannesmann Ag | Producing stepped pressed articles |
GB2265567B (en) * | 1992-03-23 | 1995-12-06 | Mannesmann Ag | Method and apparatus for producing stepped pressed articles |
IT201700049139A1 (en) * | 2017-05-05 | 2018-11-05 | C M S Di Mancini Walter & C Snc | Press for the production of tablets |
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