IE780859L - Manufacture of pipe bends with straight limbs - Google Patents
Manufacture of pipe bends with straight limbsInfo
- Publication number
- IE780859L IE780859L IE780859A IE85978A IE780859L IE 780859 L IE780859 L IE 780859L IE 780859 A IE780859 A IE 780859A IE 85978 A IE85978 A IE 85978A IE 780859 L IE780859 L IE 780859L
- Authority
- IE
- Ireland
- Prior art keywords
- tube
- tube bend
- bend
- manufacture
- ram
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/08—Bending tubes using mandrels or the like in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
In the method, use is made of tube bends which are produced from a relatively narrow straight tube using a correspondingly shaped mandrel. The tangential cylindrical leg extensions are obtained by restoring the shape of the end of the tube bend by a procedure in which forming tools that act from outside on the end of the tube bend and/or mandrels, plungers or rollers to be inserted into the end of the tube bend straighten the end of the tube bend. For this purpose, a die plate (6) is clamped onto the table of an eccentric press and cooperates with a ram (7) moved up and down by the eccentric. The end (11) of the tube bend is inserted between the die plate (6) and the ram (7) and rotated. Alternatively, use can be made of an apparatus in which an end (18) of a tube bend is inserted between two die jaws (14, 15) which open and close briefly, while a mandrel provided with pressure rollers (16, 17) is introduced into the end of the tube. <IMAGE>
[GB1603538A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2719353A DE2719353C3 (en) | 1977-04-30 | 1977-04-30 | METHOD AND DEVICE FOR PRODUCING ELBOW |
Publications (2)
Publication Number | Publication Date |
---|---|
IE780859L true IE780859L (en) | 1978-10-30 |
IE46813B1 IE46813B1 (en) | 1983-10-05 |
Family
ID=6007712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE859/78A IE46813B1 (en) | 1977-04-30 | 1978-05-01 | Manufacture of pipe bends with straight limbs |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS53135873A (en) |
AT (1) | AT360819B (en) |
CH (1) | CH629123A5 (en) |
DE (1) | DE2719353C3 (en) |
FR (1) | FR2388612B1 (en) |
GB (1) | GB1603538A (en) |
IE (1) | IE46813B1 (en) |
IT (1) | IT1095342B (en) |
NL (1) | NL176235C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1160132B (en) * | 1983-12-14 | 1987-03-04 | Tubi Italia Spa | PROCEDURE FOR THE PREPARATION OF TUBULAR MACHINES INTENDED FOR PLANTS FOR CONTINUOUS STEEL CASTING |
RU2529145C1 (en) * | 2013-04-05 | 2014-09-27 | Николай Петрович Дядченко | Method to produce metal rings from tubular billets |
CN117884848B (en) * | 2024-03-18 | 2024-05-07 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US816451A (en) | 1903-12-30 | 1906-03-27 | Francis A Forwood | Implement for truing the internal forms of tubes. |
US1680008A (en) * | 1924-11-28 | 1928-08-07 | Firm Of Rohrbogenwerk Gmbh | Apparatus for straightening the ends of bent pipes |
DE420609C (en) * | 1924-11-29 | 1925-10-28 | Rohrbogenwerk G M B H Fa | Device for straightening the ends of bent pipe sections (pipe bends) |
US1781567A (en) * | 1928-06-14 | 1930-11-11 | Firm Of Rohrbogenwerk Gmbh | Apparatus for producing bent pipes of correct prescribed lengths |
DE521348C (en) * | 1928-06-15 | 1931-03-20 | Rohrbogenwerk G M B H | Production of the correct length of pipe bends |
US1857583A (en) * | 1930-03-03 | 1932-05-10 | Firm Rohrbogenwerk Gmbh | Apparatus for straightening out the ends of bent pipes |
US1923272A (en) * | 1930-11-19 | 1933-08-22 | Taylor Forge And Pipe Works | Method and means for forming pipe elbows |
DE548888C (en) * | 1930-11-21 | 1932-04-21 | Richard Niederstrasser | Process for straightening and calibrating the ends of pipe bends |
DE573890C (en) * | 1931-04-25 | 1933-10-10 | Rohrbogenwerk G M B H | Process for the production of pipe bends or the like. |
US2528315A (en) * | 1945-05-15 | 1950-10-31 | Dresser Ind | Apparatus for forming tubular l's |
US2516372A (en) * | 1945-09-17 | 1950-07-25 | W C Norris Manufacturer Inc | Method of and means for forming pipe bends |
DE1261102B (en) * | 1960-06-23 | 1968-02-15 | Meyer F | Method and device for the manufacture of pipe bends with a cross section that tapers evenly from one end to the other |
CS171419B1 (en) * | 1973-07-23 | 1976-10-29 |
-
1977
- 1977-04-30 DE DE2719353A patent/DE2719353C3/en not_active Expired
-
1978
- 1978-04-26 GB GB16424/78A patent/GB1603538A/en not_active Expired
- 1978-04-27 AT AT306678A patent/AT360819B/en not_active IP Right Cessation
- 1978-04-27 JP JP5067678A patent/JPS53135873A/en active Pending
- 1978-04-28 IT IT22850/78A patent/IT1095342B/en active
- 1978-04-28 NL NLAANVRAGE7804609,A patent/NL176235C/en not_active IP Right Cessation
- 1978-04-28 CH CH463878A patent/CH629123A5/en not_active IP Right Cessation
- 1978-04-28 FR FR7812693A patent/FR2388612B1/en not_active Expired
- 1978-05-01 IE IE859/78A patent/IE46813B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT1095342B (en) | 1985-08-10 |
ATA306678A (en) | 1980-06-15 |
JPS53135873A (en) | 1978-11-27 |
NL7804609A (en) | 1978-11-01 |
DE2719353C3 (en) | 1986-05-07 |
IE46813B1 (en) | 1983-10-05 |
NL176235B (en) | 1984-10-16 |
GB1603538A (en) | 1981-11-25 |
DE2719353A1 (en) | 1978-11-16 |
FR2388612A1 (en) | 1978-11-24 |
CH629123A5 (en) | 1982-04-15 |
IT7822850A0 (en) | 1978-04-28 |
NL176235C (en) | 1985-03-18 |
DE2719353B2 (en) | 1981-09-03 |
FR2388612B1 (en) | 1984-07-20 |
AT360819B (en) | 1981-02-10 |
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