IE780859L - Manufacture of pipe bends with straight limbs - Google Patents

Manufacture of pipe bends with straight limbs

Info

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
Application number
IE780859A
Other versions
IE46813B1 (en
Inventor
Rolf Koser
Egon Haberstock
Anton Beidenbend
Manfred Wonderschuetz
Original Assignee
Moeller Sidro Fab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Moeller Sidro Fab filed Critical Moeller Sidro Fab
Publication of IE780859L publication Critical patent/IE780859L/en
Publication of IE46813B1 publication Critical patent/IE46813B1/en

Links

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]
IE859/78A 1977-04-30 1978-05-01 Manufacture of pipe bends with straight limbs IE46813B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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