GB1181904A - Methods of Cold Forming Articles - Google Patents
Methods of Cold Forming ArticlesInfo
- Publication number
- GB1181904A GB1181904A GB04451/67A GB1445167A GB1181904A GB 1181904 A GB1181904 A GB 1181904A GB 04451/67 A GB04451/67 A GB 04451/67A GB 1445167 A GB1445167 A GB 1445167A GB 1181904 A GB1181904 A GB 1181904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dies
- workpiece
- pressure
- tool
- enclosed
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
1,181,904. Upsetting; making cores for relays. WESTERN ELECTRIC CO. Inc. 30 March, 1967 [5 April, 1966], No. 14451/67. Headings B3A and B3H. A method of cold forming an article 11 from a length of metal comprises applying longitudinal pressure to the metal to increase its ductility and whilst in this condition shaping a portion 12 thereof by advancing a shaping tool 56. In the production of a relay core a rod-shaped metal workpiece is enclosed by segmental lower dies 32 and located by a rod (37), Fig. 1 (not shown). An upper housing 43 containing split upper dies 44 is then moved downwards into engagement with the lower dies 32 which deform the shank portion of the core and form projections (17) and serrations (18) thereon, Fig. 8 (not shown). The upper part of the workpiece is enclosed by the dies 44 and pressure 62 is then applied to tool 48 to compress the workpiece axially and build up hydrostatic pressure therein. The side tool 56, preferably operated by hydraulic pressure, then deforms the portion 12 into a triangular head. The dies 32, 44 are held together by spring bands (36), (45), Fig. 1 (not shown). Other shapes of headed rods are described, Fig. 9 (not shown). The workpiece may be made of copper, low or high carbon steel or molybdenum.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US540382A US3406555A (en) | 1966-04-05 | 1966-04-05 | Cold forming of articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181904A true GB1181904A (en) | 1970-02-18 |
Family
ID=24155215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB04451/67A Expired GB1181904A (en) | 1966-04-05 | 1967-03-30 | Methods of Cold Forming Articles |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3406555A (en) |
| BE (1) | BE696491A (en) |
| DE (1) | DE1627707A1 (en) |
| ES (1) | ES339335A1 (en) |
| FR (1) | FR1517459A (en) |
| GB (1) | GB1181904A (en) |
| NL (1) | NL6704842A (en) |
| SE (1) | SE314955B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631706A (en) * | 1969-02-25 | 1972-01-04 | Western Electric Co | Methods of and apparatus for forming an article having a tubular portion |
| GB1274464A (en) * | 1969-06-07 | 1972-05-17 | Holland Ltd | Improvements in or relating to methods of forming punches |
| PL82101B1 (en) * | 1971-07-31 | 1975-10-31 | ||
| US3803898A (en) * | 1972-08-02 | 1974-04-16 | Mc Donnell Douglas Corp | Ring pad stress coining tooling |
| US4204418A (en) * | 1978-09-15 | 1980-05-27 | Nippon Dentan Co., Ltd. | Machine and method for electric forging of the end of a metallic stick in a plane generally perpendicular to the stick |
| US4377085A (en) * | 1980-04-16 | 1983-03-22 | W-F Industries, Inc. | Female dies and method of manufacture |
| US5075053A (en) * | 1988-08-04 | 1991-12-24 | Gte Valenite Corporation | Method of making cutting insert |
| US4996863A (en) * | 1989-09-28 | 1991-03-05 | Aluminum Precision Products, Inc. | Radially convergent hot forging apparatus and method |
| US5413752A (en) * | 1992-10-07 | 1995-05-09 | General Electric Company | Method for making fatigue crack growth-resistant nickel-base article |
| US20080213720A1 (en) * | 2003-05-13 | 2008-09-04 | Ultradent Products, Inc. | Endodontic instruments manufactured using chemical milling |
| US7743505B2 (en) | 2005-02-23 | 2010-06-29 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments from powdered metals |
| US7665212B2 (en) | 2005-02-23 | 2010-02-23 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments |
| US9427790B2 (en) * | 2010-11-12 | 2016-08-30 | Pmg Asturias Powder Metal S.A.U. | Method for forming a workpiece |
| JP6800400B2 (en) * | 2018-03-28 | 2020-12-16 | 日本碍子株式会社 | Forging tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1971548A (en) * | 1933-05-15 | 1934-08-28 | Waterbury Farrel Foundry Co | Means for making articles having a polygonal cross section |
| US2513710A (en) * | 1945-01-20 | 1950-07-04 | Charles A Brauchler | Press-forging apparatus |
| US3120769A (en) * | 1960-08-29 | 1964-02-11 | Hatebur Fritz Bernhard | Pressing device for cold forming or hot forming workpieces |
| US3286498A (en) * | 1964-02-03 | 1966-11-22 | Gen Electric | Compressive forming |
-
1966
- 1966-04-05 US US540382A patent/US3406555A/en not_active Expired - Lifetime
-
1967
- 1967-03-30 GB GB04451/67A patent/GB1181904A/en not_active Expired
- 1967-03-31 SE SE4485/67A patent/SE314955B/xx unknown
- 1967-04-03 BE BE696491D patent/BE696491A/xx unknown
- 1967-04-03 FR FR101299A patent/FR1517459A/en not_active Expired
- 1967-04-03 ES ES339335A patent/ES339335A1/en not_active Expired
- 1967-04-04 DE DE19671627707 patent/DE1627707A1/en active Pending
- 1967-04-05 NL NL6704842A patent/NL6704842A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3406555A (en) | 1968-10-22 |
| BE696491A (en) | 1967-09-18 |
| FR1517459A (en) | 1968-03-15 |
| ES339335A1 (en) | 1968-05-01 |
| NL6704842A (en) | 1967-10-06 |
| DE1627707A1 (en) | 1971-04-01 |
| SE314955B (en) | 1969-09-22 |
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