ZA734924B - A system and device for avoiding any change of the cross section of tubular bodies during their cold bending - Google Patents

A system and device for avoiding any change of the cross section of tubular bodies during their cold bending

Info

Publication number
ZA734924B
ZA734924B ZA734924A ZA734924A ZA734924B ZA 734924 B ZA734924 B ZA 734924B ZA 734924 A ZA734924 A ZA 734924A ZA 734924 A ZA734924 A ZA 734924A ZA 734924 B ZA734924 B ZA 734924B
Authority
ZA
South Africa
Prior art keywords
avoiding
change
cross
section
tubular bodies
Prior art date
Application number
ZA734924A
Other languages
English (en)
Inventor
P Crotti
Original Assignee
Camar Sa
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 Camar Sa filed Critical Camar Sa
Publication of ZA734924B publication Critical patent/ZA734924B/xx

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
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • 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
    • B21D9/15—Bending tubes using mandrels or the like using filling material of indefinite shape, e.g. sand, plastic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
ZA734924A 1972-09-18 1973-07-19 A system and device for avoiding any change of the cross section of tubular bodies during their cold bending ZA734924B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT52811/72A IT965396B (it) 1972-09-18 1972-09-18 Sistema e dispositivo per mante mere in alterata la sezione tra sversale di corpi tubolari du rante una operazione di incurva mento a freddo

Publications (1)

Publication Number Publication Date
ZA734924B true ZA734924B (en) 1974-06-26

Family

ID=11277645

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA734924A ZA734924B (en) 1972-09-18 1973-07-19 A system and device for avoiding any change of the cross section of tubular bodies during their cold bending

Country Status (14)

Country Link
US (1) US3859839A (xx)
JP (1) JPS4970863A (xx)
AR (1) AR197995A1 (xx)
AT (1) AT327640B (xx)
AU (1) AU6014373A (xx)
BE (1) BE803178A (xx)
CH (1) CH570213A5 (xx)
DE (1) DE2346103A1 (xx)
ES (1) ES194925Y (xx)
FR (1) FR2200065B1 (xx)
IT (1) IT965396B (xx)
LU (1) LU68193A1 (xx)
NL (1) NL7312378A (xx)
ZA (1) ZA734924B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT232332Y1 (it) * 1994-02-22 1999-12-17 Borletti Climatizzazione Attrezzatura per la piegatura a u di tubi per scambiatori di calore muniti di alette radiali sporgenti dalla parete interna del tubo.
JP4031827B2 (ja) * 2002-10-10 2008-01-09 三桜工業株式会社 二重管の曲げ方法
WO2010105341A1 (en) 2009-03-19 2010-09-23 Magna International Inc. Method of producing tailored tubes
DE102014107389A1 (de) * 2014-05-26 2015-11-26 Viega Gmbh & Co. Kg Innenbiegewerkzeug für Rohre

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US425395A (en) * 1890-04-08 Pipe-bending core
US179130A (en) * 1876-06-27 Improvement in pipe-bending mandrels
US1654697A (en) * 1925-10-17 1928-01-03 Adolph Mueller Pipe-bending mandrel
US2729265A (en) * 1951-12-20 1956-01-03 Boeing Co Articulated metal forming tool
DE955018C (de) * 1954-02-26 1956-12-27 Ludwig Lang Biegsamer Dorn zum Biegen von Rohren
GB845241A (en) * 1957-12-02 1960-08-17 Gen Electric Co Ltd Improvements in or relating to waveguides and methods of bending waveguides
GB837462A (en) * 1957-12-02 1960-06-15 Gen Electric Co Ltd Improvements in or relating to waveguides and methods of bending waveguides
US3279237A (en) * 1963-05-20 1966-10-18 Mueller Brass Co Mandrel for bending tubing
US3580044A (en) * 1969-03-24 1971-05-25 Edwin A De Voss Tube bending mandrel

Also Published As

Publication number Publication date
ATA720173A (de) 1975-04-15
ES194925U (es) 1975-01-01
DE2346103A1 (de) 1974-03-28
CH570213A5 (xx) 1975-12-15
AU6014373A (en) 1975-03-13
ES194925Y (es) 1975-06-01
US3859839A (en) 1975-01-14
AR197995A1 (es) 1974-05-24
AT327640B (de) 1976-02-10
IT965396B (it) 1974-01-31
FR2200065B1 (xx) 1978-01-27
LU68193A1 (xx) 1973-10-16
FR2200065A1 (xx) 1974-04-19
JPS4970863A (xx) 1974-07-09
NL7312378A (xx) 1974-03-20
BE803178A (fr) 1973-12-03

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