GB1080010A - Cold forming pipe elbows - Google Patents

Cold forming pipe elbows

Info

Publication number
GB1080010A
GB1080010A GB5293364A GB5293364A GB1080010A GB 1080010 A GB1080010 A GB 1080010A GB 5293364 A GB5293364 A GB 5293364A GB 5293364 A GB5293364 A GB 5293364A GB 1080010 A GB1080010 A GB 1080010A
Authority
GB
United Kingdom
Prior art keywords
blank
mandrel
die
mandrels
shaped
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
GB5293364A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5293364A priority Critical patent/GB1080010A/en
Publication of GB1080010A publication Critical patent/GB1080010A/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
    • 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

1,080,010. Bending. H. J. STEEL. Dec. 31, 1964, No. 52933/64. Heading B3E. A blank 34, formed from a pre-shaped metal tube, Fig. 5, is cold formed into a bend by forcing the blank around a curved channel in a die while supporting the ends of the blank with mandrels 46 and 56, the part of each mandrel embraced by the blank having a compound shape which is part cylindrical and part toroidal. The die is constituted by shaped blocks 22, 25, 31, and a roller 17, a plunger 55 being used to force a blank through the die. A mandrel 56 supports the trailing end of a blank 34b, while a floating mandrel 46 supports both its leading end and the trailing end of a blank 34a which is being formed within the curved channel. A collar 47 is provided centrally of the mandrel 46. In a similar operation (Fig. 11) a pre-shaped blank is formed between mandrels 91 and 83 against back pressure supplied by a fluid operated cylinder assembly 77. A roller die 72 is connected by an arm 75 to a piston rod 76, the die block 74 and mandrel 86 rotating with the workpiece drawing forming. Shaped collars 92 and 86 are attached to the two mandrels for co-operation with the blank ends.
GB5293364A 1964-12-31 1964-12-31 Cold forming pipe elbows Expired GB1080010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5293364A GB1080010A (en) 1964-12-31 1964-12-31 Cold forming pipe elbows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5293364A GB1080010A (en) 1964-12-31 1964-12-31 Cold forming pipe elbows

Publications (1)

Publication Number Publication Date
GB1080010A true GB1080010A (en) 1967-08-23

Family

ID=10465875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5293364A Expired GB1080010A (en) 1964-12-31 1964-12-31 Cold forming pipe elbows

Country Status (1)

Country Link
GB (1) GB1080010A (en)

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