GB1198220A - Tube-Bending Process - Google Patents

Tube-Bending Process

Info

Publication number
GB1198220A
GB1198220A GB6142268A GB6142268A GB1198220A GB 1198220 A GB1198220 A GB 1198220A GB 6142268 A GB6142268 A GB 6142268A GB 6142268 A GB6142268 A GB 6142268A GB 1198220 A GB1198220 A GB 1198220A
Authority
GB
United Kingdom
Prior art keywords
tube
die
bent
tubes
jack
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
Application number
GB6142268A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1198220A publication Critical patent/GB1198220A/en
Expired legal-status Critical Current

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
    • 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
    • B21C37/283—Making U-pieces
    • 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
    • B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
    • B21D9/125—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die by pushing through a curved die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

1,198,220. Bending tubes: filling. COMMISSARIAT A L'ENERGIE ATOMIQUE. 24 Dec., 1968 [18 Jan., 1968], No. 61422/68. Heading B3E. A tube bending process is characterized in that a straight tube to be bent is filled with a compact material 19, e.g. resin, sand, lead or metal alloy, one end of the tube is inwardly swaged at 20 and this end is placed in the rectilinear portion 5 of a channel 4 in a shaping die 2 which channel also has an elbowed portion 6 and the tube is pushed into the die by means of an hydraulic jack 14 whilst the end of the tube remote from the jack is subjected to fluid pressure which lubricates the tube in the die whilst it is being bent. The elbowed portion of the die is connected to a tank 9 containing oil having molybdenum particles in suspension and a pump 10 delivers the oil under a predetermined pressure to the elbowed portion 6. As the tube is pushed through the die the lubricant. escapes partly between the tube wall and the die to ensure adequate lubrication. This leakage is arrested by a packing gland into the end of the die adjacent the jack. An antifriction member 25, Fig. 4, may be bolted to the leading end of the tube to act as a guide. Tubes of hard metals, e.g. molybdenum stainless steel, cobalt steel, tungsten and titanium may be bent by this process and also very thin walled tubes of nickel zirconium and phosphor bronze.
GB6142268A 1968-01-18 1968-12-24 Tube-Bending Process Expired GB1198220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR136563 1968-01-18

Publications (1)

Publication Number Publication Date
GB1198220A true GB1198220A (en) 1970-07-08

Family

ID=8644759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6142268A Expired GB1198220A (en) 1968-01-18 1968-12-24 Tube-Bending Process

Country Status (7)

Country Link
BE (1) BE725699A (en)
CH (1) CH500779A (en)
DE (2) DE1902285A1 (en)
ES (1) ES362660A1 (en)
FR (1) FR1565445A (en)
GB (1) GB1198220A (en)
LU (1) LU57587A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2524342C3 (en) 1974-12-20 1980-07-17 Tag Vertrieb Ag, Zuerich (Schweiz) Device for bending pipes by cold forming
US4916952A (en) * 1987-01-21 1990-04-17 Benteler Aktiengesellschaft Mandrel for bending pipes
CN102773306A (en) * 2012-08-09 2012-11-14 河南源泉电器有限公司 Packing medium of extruded tube piece and manufacturing process of extruded tube piece
CN102950166A (en) * 2011-11-11 2013-03-06 宁波三进机电科技有限公司 Method for making multi-pass joint

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2524342C3 (en) 1974-12-20 1980-07-17 Tag Vertrieb Ag, Zuerich (Schweiz) Device for bending pipes by cold forming
DE2560070C2 (en) * 1974-12-20 1986-12-18 Tag Vertrieb A.G., Zürich Process for the production of angled pipe sections
US4916952A (en) * 1987-01-21 1990-04-17 Benteler Aktiengesellschaft Mandrel for bending pipes
CN102950166A (en) * 2011-11-11 2013-03-06 宁波三进机电科技有限公司 Method for making multi-pass joint
CN102950166B (en) * 2011-11-11 2016-07-06 宁波三进机电科技有限公司 The manufacture method of multiple way union
CN102773306A (en) * 2012-08-09 2012-11-14 河南源泉电器有限公司 Packing medium of extruded tube piece and manufacturing process of extruded tube piece
CN102773306B (en) * 2012-08-09 2017-07-18 赵肖运 Extruded tube leads to the manufacture craft of the logical part of filled media and its extruded tube of part

Also Published As

Publication number Publication date
DE1902285A1 (en) 1969-10-02
CH500779A (en) 1970-12-31
DE6901753U (en) 1971-11-04
ES362660A1 (en) 1970-12-01
LU57587A1 (en) 1969-04-08
FR1565445A (en) 1969-05-02
BE725699A (en) 1969-05-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees