GB606306A - Improvements in the manufacture of tubes - Google Patents

Improvements in the manufacture of tubes

Info

Publication number
GB606306A
GB606306A GB109546A GB109546A GB606306A GB 606306 A GB606306 A GB 606306A GB 109546 A GB109546 A GB 109546A GB 109546 A GB109546 A GB 109546A GB 606306 A GB606306 A GB 606306A
Authority
GB
United Kingdom
Prior art keywords
tube
die
mandrel
pushed
drawn
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
GB109546A
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.)
THOMAS GARMONDSWAY WRIGHTSON B
Head Wrightson and Co Ltd
Original Assignee
THOMAS GARMONDSWAY WRIGHTSON B
Head Wrightson and Co Ltd
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 THOMAS GARMONDSWAY WRIGHTSON B, Head Wrightson and Co Ltd filed Critical THOMAS GARMONDSWAY WRIGHTSON B
Priority to GB109546A priority Critical patent/GB606306A/en
Publication of GB606306A publication Critical patent/GB606306A/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
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

606,306. Drawing. HEAD, WRIGHTSON, & CO., Ltd., WRIGHTSON, Sir T. G., and LAKE, N. C. Jan. 11, 1946, No. 1095. [Class 83 (iv)] In a method of forming a tube with a thickened end, the end of the tube is pushed through a drawing die without internal support and a mandrel is then inserted in the tube and the succeeding portion is drawn between the die and mandrel, the leading thickened end being' retained as part of the finished tube. In one example of the method, one end of a tube is pushed through a die 3 to form a reduced end as shown in Fig. 3. A mandrel 4 having a reduced end 4a to facilitate its insertion is pushed into the tube, the remainder of which is drawn between the die and mandrel, leaving, if desired, an undrawn larger portion at the other end. The tube may be pulled back through the die by placing in a groove 5 of the mandrel, a split-ring having an external diameter equal to that of the drawn portion of the tube. The undrawn end may then be thickened by being pushed through the die. Alternatively, the whole of the remainder of the tube may be drawn, a larger die but the same mandrel being used for the end, thus forming a length of tube as shown in Fig. 11. By thus using different dies, various forms of thickened end portions may be produced. The invention is applicable to tubes of round or other section. Specification 578,076 is referred to.
GB109546A 1946-01-11 1946-01-11 Improvements in the manufacture of tubes Expired GB606306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB109546A GB606306A (en) 1946-01-11 1946-01-11 Improvements in the manufacture of tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB109546A GB606306A (en) 1946-01-11 1946-01-11 Improvements in the manufacture of tubes

Publications (1)

Publication Number Publication Date
GB606306A true GB606306A (en) 1948-08-11

Family

ID=9716063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB109546A Expired GB606306A (en) 1946-01-11 1946-01-11 Improvements in the manufacture of tubes

Country Status (1)

Country Link
GB (1) GB606306A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093309B (en) * 1958-02-10 1960-11-24 Accles And Pollock Ltd Of Padd Pulling device for the production of pipes with a part that is internally thickened at one end
FR2417350A1 (en) * 1978-02-21 1979-09-14 Babcock & Wilcox Co COLD DRAWING OF TUBES
DE3019580A1 (en) * 1979-05-22 1981-01-22 Zaporozh Pk I T I HYDRAULIC PRESS
FR2473916A1 (en) * 1980-01-22 1981-07-24 Tubes Cie Indle Cale Cold drawing of hollow drive shaft reduced end spigots - has second spigot using bore mandrels while shaft is forced part way into drawing plates
EP0106751A1 (en) * 1982-10-08 1984-04-25 Yves Pencé Method of making cylindrical work pieces of progressively increasing diameters, and device for carrying out the method
GB2171350A (en) * 1985-02-22 1986-08-28 Laeis Gmbh Production of tubes by cold working
US4726211A (en) * 1984-04-16 1988-02-23 Sanwa Kokan Kabushiki Kaishas Method of cold drawing seamless metal tubes each having an upset portion on each end
US5119662A (en) * 1984-04-16 1992-06-09 Sanwa Kokan Co., Ltd. Methods for cold drawing seamless metal tubes each having an upset portion on each end
FR2782661A1 (en) * 1998-08-25 2000-03-03 Allevard Ressorts Automobile Method of making motor vehicle torsion bar involves cold swaging ends of blank to increase diameter and drawing middle section of blank

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093309B (en) * 1958-02-10 1960-11-24 Accles And Pollock Ltd Of Padd Pulling device for the production of pipes with a part that is internally thickened at one end
FR2417350A1 (en) * 1978-02-21 1979-09-14 Babcock & Wilcox Co COLD DRAWING OF TUBES
DE3019580A1 (en) * 1979-05-22 1981-01-22 Zaporozh Pk I T I HYDRAULIC PRESS
FR2473916A1 (en) * 1980-01-22 1981-07-24 Tubes Cie Indle Cale Cold drawing of hollow drive shaft reduced end spigots - has second spigot using bore mandrels while shaft is forced part way into drawing plates
EP0106751A1 (en) * 1982-10-08 1984-04-25 Yves Pencé Method of making cylindrical work pieces of progressively increasing diameters, and device for carrying out the method
US4726211A (en) * 1984-04-16 1988-02-23 Sanwa Kokan Kabushiki Kaishas Method of cold drawing seamless metal tubes each having an upset portion on each end
US5119662A (en) * 1984-04-16 1992-06-09 Sanwa Kokan Co., Ltd. Methods for cold drawing seamless metal tubes each having an upset portion on each end
GB2171350A (en) * 1985-02-22 1986-08-28 Laeis Gmbh Production of tubes by cold working
FR2577827A1 (en) * 1985-02-22 1986-08-29 Laeis Gmbh PROCESS FOR MANUFACTURING THICK-WALLED TUBES WITH COLD FORMING OF A TUBULAR BLANK
FR2782661A1 (en) * 1998-08-25 2000-03-03 Allevard Ressorts Automobile Method of making motor vehicle torsion bar involves cold swaging ends of blank to increase diameter and drawing middle section of blank

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