GB1312703A - Extrusion press - Google Patents
Extrusion pressInfo
- Publication number
- GB1312703A GB1312703A GB2190270A GB2190270A GB1312703A GB 1312703 A GB1312703 A GB 1312703A GB 2190270 A GB2190270 A GB 2190270A GB 2190270 A GB2190270 A GB 2190270A GB 1312703 A GB1312703 A GB 1312703A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piercer
- valve
- ram
- actuated
- piston
- 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
- B21C23/085—Making 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
-
- 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
- B21C23/217—Tube extrusion presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Extrusion Of Metal (AREA)
Abstract
1312703 Extruding; billet piercing MASCHINENFABRIK SACK GmbH 6 May 1970 [29 May 1969] 21902/70 Headings B3H and B3P An extrusion press which can be used to produce either rod or tube includes an hydraulic piercer piston 13 inside the main extrusion ram 4 and a control valve 20 actuated in dependence on the position of the piercer tip 15a relative to the die 8 to supply fluid to the piston to keep it substantially stationary. In one form the valve is actuated by an abutment 30 on a cord 27 attached to the piston at one end and a spring- biased pulley 28 at the other end. Alternatively the valve 20 may be electrically actuated or a variable delivery pump could be used to vary the supply to the piston. In operation the piercer tip 15a oscillates slightly within the die. The press can be used to extrude tubes using a piercer which moves with the ram in which case the abutment 30 is positioned so that the valve 20 is not actuated and hence the piercer is maintained fully extended relative to the ram 4 under the control of a valve 19. When the press is used to extrude rods the piercer is maintained fully retracted by appropriately positioning the valve 19. For extruding tubes using a substantially stationary piercer the valve 19 is closed and the abutment 30 positioned so that its separation from the valve actuator 32 is equal to the distance between the piercer tip 15a and the die 8. Hence as the ram advances the piercer is fully advanced until it enters the die. For extruding tubes using a moving piercer the valve 19 is actuated to fully retract the piercer into the ram. When the ram abuts the workpiece a pressure sensitive switch closes the valve 19 to keep the piercer retracted. The ram upsets the workpiece and is then slightly retracted to allow for the backward extrusion caused by the piercing. After piercing the piereer is maintained in its advanced position during the extrusion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691927396 DE1927396C3 (en) | 1969-05-29 | Device for holding the mandrel axially in relation to the die in a pipe extrusion press |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1312703A true GB1312703A (en) | 1973-04-04 |
Family
ID=5735523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2190270A Expired GB1312703A (en) | 1969-05-29 | 1970-05-06 | Extrusion press |
Country Status (6)
Country | Link |
---|---|
US (1) | US3709013A (en) |
JP (1) | JPS4926188B1 (en) |
AT (1) | AT300508B (en) |
CH (1) | CH503525A (en) |
FR (1) | FR2048967A5 (en) |
GB (1) | GB1312703A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103447339A (en) * | 2013-08-23 | 2013-12-18 | 浙江工业大学 | Triaxial high-frequency composite flutter cold extrusion die |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868841A (en) * | 1973-03-30 | 1975-03-04 | Aluminum Co Of America | Process and means for making thick end tube and pipe |
DE2704652A1 (en) * | 1977-02-04 | 1978-08-17 | Schloemann Siemag Ag | ARRANGEMENT FOR LIMITING THE DORN STROKE IN METAL EXTRUSION AND TUBE PRESSES |
US4523444A (en) * | 1982-12-13 | 1985-06-18 | Fuchs Jr Francis J | Methods of and apparatus for controlling the gap between a mandrel and die during extrusion |
DE102005001764A1 (en) * | 2004-01-15 | 2005-10-06 | Sms Eumuco Gmbh | Method for regulating the position of a piercing punch of an extrusion press for producing hollow profiles |
CN100443208C (en) * | 2006-11-10 | 2008-12-17 | 钱宗富 | Method for extruding and stretching short pipe to long pipe and its cold extrusion device |
CN102380517B (en) * | 2011-10-19 | 2014-03-26 | 浙江工业大学 | Multifunctional vibration extrusion die based on electro-hydraulic servo driving |
CN102581054B (en) * | 2012-02-29 | 2014-03-26 | 浙江工业大学 | High frequent chattering cold extruding die possessing ejection rod |
US9486849B2 (en) | 2012-09-12 | 2016-11-08 | Ube Machinery Corporation, Ltd. | Double-action extrusion press |
JP5979491B2 (en) * | 2012-11-12 | 2016-08-24 | 宇部興産機械株式会社 | Double acting extrusion press |
JP6232745B2 (en) | 2013-05-24 | 2017-11-22 | 宇部興産機械株式会社 | Double acting extrusion press |
WO2015083536A1 (en) | 2013-12-04 | 2015-06-11 | 宇部興産機械株式会社 | Direct double-action extrusion press |
CN104084440B (en) * | 2014-07-22 | 2016-04-13 | 株洲市文佳实业有限公司 | The shaped device of forging molding is squeezed for plastic deformation |
CN104226871B (en) * | 2014-07-22 | 2016-08-24 | 株洲市文佳实业有限公司 | Plastic deformation squeezes forging molding method |
CN112170760B (en) * | 2020-08-27 | 2022-09-16 | 天津市天锻压力机有限公司 | Vertical rotary extrusion hydraulic press |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2063562A (en) * | 1934-04-12 | 1936-12-08 | Sparks Processes Inc | Manufacture of extruded metal shapes by hot hydraulic extrusion |
US3362208A (en) * | 1965-01-07 | 1968-01-09 | Reynolds Metals Co | Extruding metal members of varying wall thickness |
-
1970
- 1970-05-06 GB GB2190270A patent/GB1312703A/en not_active Expired
- 1970-05-08 AT AT417870A patent/AT300508B/en not_active IP Right Cessation
- 1970-05-19 US US00038826A patent/US3709013A/en not_active Expired - Lifetime
- 1970-05-22 CH CH759770A patent/CH503525A/en not_active IP Right Cessation
- 1970-05-28 JP JP45045237A patent/JPS4926188B1/ja active Pending
- 1970-05-29 FR FR7019657A patent/FR2048967A5/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103447339A (en) * | 2013-08-23 | 2013-12-18 | 浙江工业大学 | Triaxial high-frequency composite flutter cold extrusion die |
Also Published As
Publication number | Publication date |
---|---|
US3709013A (en) | 1973-01-09 |
JPS4926188B1 (en) | 1974-07-06 |
CH503525A (en) | 1971-02-28 |
FR2048967A5 (en) | 1971-03-19 |
DE1927396A1 (en) | 1970-12-10 |
AT300508B (en) | 1972-07-25 |
DE1927396B2 (en) | 1977-04-21 |
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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 |