GB1400874A - Methods of and apparatus for forming elongated products from elongated workpieces - Google Patents
Methods of and apparatus for forming elongated products from elongated workpiecesInfo
- Publication number
- GB1400874A GB1400874A GB5317872A GB5317872A GB1400874A GB 1400874 A GB1400874 A GB 1400874A GB 5317872 A GB5317872 A GB 5317872A GB 5317872 A GB5317872 A GB 5317872A GB 1400874 A GB1400874 A GB 1400874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- workpiece
- die
- coating
- pinions
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
- B21C1/26—Push-bench drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/005—Continuous extrusion starting from solid state material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/007—Hydrostatic extrusion
- B21C23/008—Continuous extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/211—Press driving devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
- Coating Apparatus (AREA)
Abstract
1400874 Extruding; drawing WESTERN ELECTRIC CO Inc 17 Nov 1972 [17 Nov 1971] 53178/72 Heading B3P An apparatus for the continuous extrusion of an elongated workpiece 2 through a die 12, Fig. 10, comprises sets of segmented gripping jaws 4 which move in endless paths 6 and co-operate on the innermost part of their paths to feed the workpiece to the die and effect the extrusion. The workpiece 2 is coated with a shear transmitting medium such as beeswax or polyethylene wax in two chambers 82, 83, Fig. 4, before reaching the feeding jaws. A sizing die 73 is provided between the chambers and a wiper 79 removes dirt from the workpiece before coating and a wiper 71 determines the thickness of the coating. The coating acts as a lubricant for both the sizing die and the extrusion die and is progressively pressurized by the jaws to beyond the yield strength of the workpiece. The gripping jaws are moved in the feed direction by staggered pinions 5a-5d, 25a- 25d, Fig. 5, which engage teeth on the outside of the jaws. The pinions are housed in a gear block 14 provided with gears trains and fluid driven motors for the pinions, Fig. 3 (not shown). The gear block 14 has a bore 16 to guide the jaws aligned with the bore of a pressure cylinder 11 and the bore of a further gear block 15 downstream of the extrusion die. The gear block 15 also has pinions 27a-27d engaged with the jaws but these pinions drive fluid pumps so that the jaw feed is retarded by the pinions to keep the jaws closely adjacent. The pressure cylinder 11 is internally lined by a sleeve (34), Fig. 8 (not shown), and a segmented sleeve (38a)-(38d), Fig. 9 (not shown). The segments define bores 40 for electrical heaters and supports guiding bars (42) for the jaws. The jaws are urged inwards by fluid pressure to sets of chambers (52a)-(52d), behind the jaws to pressurize the shear transmitting medium. A set of pressure reducing valves (53a)-(53d), (54a)-(54d), (55a)-(55d), Fig. 8 (not shown), ensure that the pressure in the sets chambers behind the jaws is progressively greater in the workpiece feed direction. The jaws are guided in the curved and straight return paths 7, 8, Fig. 5, by segment cross-section passages in guide blocks, Figs. 6 and 7 (not shown). In operation the jaws 4 closely contact the entire perimetric surface of a length of shear transmitting medium coating on the workpiece 2. The feed of the jaws provide a motive force along the surface of the coating and thereby produce a shear force in the coating medium which is applied as viscous drag to propel the workpiece to the die. The viscous drag produces axial compressive stress in the workpiece. The coating medium cannot escape between the jaws and must pass through the extrusion die. The medium accumulates at the entrance of the die and produces normal compressive stress in the workpiece upstream of the die. The difference between the axial and normal stress is arranged to not exceed the yield strength of the workpiece which may be copper or aluminium.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19954271A | 1971-11-17 | 1971-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1400874A true GB1400874A (en) | 1975-07-16 |
Family
ID=22737973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5317872A Expired GB1400874A (en) | 1971-11-17 | 1972-11-17 | Methods of and apparatus for forming elongated products from elongated workpieces |
Country Status (16)
Country | Link |
---|---|
US (1) | US3740985A (en) |
JP (2) | JPS5324902B2 (en) |
BE (1) | BE790903A (en) |
CA (1) | CA996502A (en) |
CH (1) | CH570849A5 (en) |
CS (1) | CS212735B2 (en) |
DE (1) | DE2255866C3 (en) |
ES (1) | ES408935A1 (en) |
FR (1) | FR2160413B1 (en) |
GB (1) | GB1400874A (en) |
HU (1) | HU175863B (en) |
IT (1) | IT975747B (en) |
NL (1) | NL158405B (en) |
SE (1) | SE404882B (en) |
SU (1) | SU793361A3 (en) |
ZA (1) | ZA728125B (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518868B2 (en) * | 1972-12-16 | 1976-03-22 | ||
US3922898A (en) * | 1974-03-29 | 1975-12-02 | Wanskuck Co | Extrusion process |
US3911705A (en) * | 1974-04-01 | 1975-10-14 | Wanskuck Co | Extrusion apparatus |
US3901065A (en) * | 1974-11-13 | 1975-08-26 | Western Electric Co | Multiple aperture die |
US3964283A (en) * | 1974-11-13 | 1976-06-22 | Western Electric Company, Inc. | Production of multiple elongated products such as wire |
US4027511A (en) * | 1974-11-13 | 1977-06-07 | Western Electric Company, Inc. | Apparatus for producing multiple elongated products such as wires |
US3948079A (en) * | 1974-11-13 | 1976-04-06 | Western Electric Company, Inc. | Multiple aperture die |
US3916669A (en) * | 1974-11-13 | 1975-11-04 | Western Electric Co | Multiple aperture die |
US3924429A (en) * | 1974-11-13 | 1975-12-09 | Western Electric Co | Method and apparatus for reducing extrusion start-up pressure |
US4005596A (en) * | 1975-04-07 | 1977-02-01 | Ural Viktor Ivanovich | Apparatus for hydraulic pressing of metals |
US3985011A (en) * | 1975-09-12 | 1976-10-12 | Western Electric Company, Inc. | Continuous extrusion |
FR2334435A1 (en) * | 1975-12-12 | 1977-07-08 | Trefimetaux | CONTINUOUS EXTRUSION DEVICE |
US4094178A (en) * | 1976-03-08 | 1978-06-13 | Western Electric Co., Inc. | Methods for continuous extrusion |
US4051705A (en) * | 1976-06-24 | 1977-10-04 | Western Electric Co. | Die stem heating |
US4163377A (en) * | 1976-11-10 | 1979-08-07 | Trefimetaux | Continuous hydrostatic extrusion process and apparatus |
US4177658A (en) * | 1978-06-08 | 1979-12-11 | Western Electric Co., Inc. | Methods and apparatus for continuous extrusion |
US4319476A (en) * | 1978-07-19 | 1982-03-16 | Western Electric Company, Incorporated | Methods and apparatus for extrusion |
US4283931A (en) * | 1978-10-27 | 1981-08-18 | Bicc Limited | Continuous extrusion of metals |
US4262513A (en) * | 1978-10-27 | 1981-04-21 | Bicc Limited | Continuous extrusion of metals |
USRE33501E (en) * | 1985-05-13 | 1990-12-25 | National Rolling Mills, Inc. | Fire-rated beam with expansion relief section |
US5327756A (en) * | 1991-12-31 | 1994-07-12 | Fox Francis J | Method and apparatus for forming spiral grooves internally in metal tubing |
DE4402673A1 (en) * | 1994-01-29 | 1995-08-03 | Huber & Bauer Gmbh | Device for hydroforming |
CN112453083B (en) * | 2020-11-02 | 2022-09-06 | 河北浩发腾达管道制造有限公司 | Steel pipe autoloading draws extension apparatus for producing |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3103309A (en) * | 1963-09-10 | englund | ||
US1321729A (en) * | 1919-05-15 | 1919-11-11 | Simmons Co | Tube-drawing apparatus. |
GB1177223A (en) * | 1966-02-04 | 1970-01-07 | Atomic Energy Authority Uk | Improvements in Hydrostatic Extrusion Apparatus |
US3440849A (en) * | 1966-05-13 | 1969-04-29 | Atomic Energy Authority Uk | Hydrostatic extrusion apparatus |
DE2003356A1 (en) * | 1969-01-28 | 1970-09-24 | Western Electric Co | Method and device for the motion drive of a workpiece |
-
0
- BE BE790903D patent/BE790903A/en not_active IP Right Cessation
-
1971
- 1971-11-17 US US00199542A patent/US3740985A/en not_active Expired - Lifetime
-
1972
- 1972-05-31 CA CA143,566A patent/CA996502A/en not_active Expired
- 1972-10-12 SE SE7213161A patent/SE404882B/en unknown
- 1972-11-09 FR FR7239809A patent/FR2160413B1/fr not_active Expired
- 1972-11-13 NL NL7215346.A patent/NL158405B/en not_active IP Right Cessation
- 1972-11-15 IT IT70593/72A patent/IT975747B/en active
- 1972-11-15 DE DE2255866A patent/DE2255866C3/en not_active Expired
- 1972-11-16 CH CH1699072A patent/CH570849A5/xx not_active IP Right Cessation
- 1972-11-16 ZA ZA728125A patent/ZA728125B/en unknown
- 1972-11-16 HU HU72WE473A patent/HU175863B/en unknown
- 1972-11-17 ES ES408935A patent/ES408935A1/en not_active Expired
- 1972-11-17 CS CS727810A patent/CS212735B2/en unknown
- 1972-11-17 JP JP11488072A patent/JPS5324902B2/ja not_active Expired
- 1972-11-17 SU SU721874093A patent/SU793361A3/en active
- 1972-11-17 GB GB5317872A patent/GB1400874A/en not_active Expired
-
1977
- 1977-03-16 JP JP2815477A patent/JPS52107257A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS52107257A (en) | 1977-09-08 |
CH570849A5 (en) | 1975-12-31 |
DE2255866C3 (en) | 1981-03-12 |
NL7215346A (en) | 1973-05-21 |
US3740985A (en) | 1973-06-26 |
CA996502A (en) | 1976-09-07 |
BE790903A (en) | 1973-03-01 |
HU175863B (en) | 1980-10-28 |
NL158405B (en) | 1978-11-15 |
JPS4862655A (en) | 1973-09-01 |
IT975747B (en) | 1974-08-10 |
FR2160413B1 (en) | 1976-04-23 |
JPS5324902B2 (en) | 1978-07-24 |
ZA728125B (en) | 1973-07-25 |
CS212735B2 (en) | 1982-03-26 |
SU793361A3 (en) | 1980-12-30 |
DE2255866A1 (en) | 1973-05-24 |
AU4885072A (en) | 1974-05-16 |
ES408935A1 (en) | 1976-04-01 |
FR2160413A1 (en) | 1973-06-29 |
SE404882B (en) | 1978-11-06 |
DE2255866B2 (en) | 1980-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |