GB838550A - Method of making tubes of truncated-wedge-cross-section - Google Patents

Method of making tubes of truncated-wedge-cross-section

Info

Publication number
GB838550A
GB838550A GB1098657A GB1098657A GB838550A GB 838550 A GB838550 A GB 838550A GB 1098657 A GB1098657 A GB 1098657A GB 1098657 A GB1098657 A GB 1098657A GB 838550 A GB838550 A GB 838550A
Authority
GB
United Kingdom
Prior art keywords
section
cross
tube
head
wedge
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
GB1098657A
Inventor
William Willis
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.)
Armstrong Siddeley Motors Ltd
Original Assignee
Armstrong Siddeley Motors 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 Armstrong Siddeley Motors Ltd filed Critical Armstrong Siddeley Motors Ltd
Priority to GB1098657A priority Critical patent/GB838550A/en
Publication of GB838550A publication Critical patent/GB838550A/en
Expired legal-status Critical Current

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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/025—Stamping using rigid devices or tools for tubular articles
    • 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
    • B21C37/155—Making tubes with non circular section

Landscapes

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

Abstract

838,550. Making pipes for propulsion nozzles of rocket motors. ARMSTRONG SIDDELEY MOTORS Ltd. March 28, 1958 [April 4, 1957], No. 10986/57. Classes 83 (2) and 83 (4). [Also in Group XXVIII] Stamping.-A method of making tubes of truncated wedge-shaped cross-section which are to be welded together side by side whilst arranged in a circle and reinforced by wire helically wound under tension to form the nozzle pipe of a jet motor, comprises simultaneously compressing in two intersecting directions a tube of circular cross-section to form the desired truncated wedge-shaped cross-section while supporting the inside of the tube with an extrudable material. Each tube made by the method has a portion 20 of four-sided uniform cross-section (Fig. 3), a portion 24 of deepened ribbed cross-section (Fig. 7) which forms the throat of the nozzle and a portion 25 the crosssection of which widens from the deep ribbed section of the throat portion to a shallow ribbed cross-section (Fig. 4). The tube is further stiffened by providing its walls 21a and 22a with a convex curvature (Fig. 8). Apparatus for carrying out the method comprises a bed plate 27 and a movable head 28. A longitudinally extending lower die 29 is bolted to the bed plate and on each side of the die and slidably mounted on guides 33 on the base plate is a spring-loaded die block 35. A punch 44 for coacting with the lower die 29 is carried by the head 28 such that when the head descends and urges the punch towards the lower die the blocks 35 are forced inwardly by the wedge action of the arms 52 of the head and the required cross-sectional configuration is imparted to the tube. The tube of circular cross-section initially placed in the apparatus is filled with a paraffin wax having a melting point of 110‹ to 115‹ F.
GB1098657A 1957-04-04 1957-04-04 Method of making tubes of truncated-wedge-cross-section Expired GB838550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1098657A GB838550A (en) 1957-04-04 1957-04-04 Method of making tubes of truncated-wedge-cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1098657A GB838550A (en) 1957-04-04 1957-04-04 Method of making tubes of truncated-wedge-cross-section

Publications (1)

Publication Number Publication Date
GB838550A true GB838550A (en) 1960-06-22

Family

ID=9977946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1098657A Expired GB838550A (en) 1957-04-04 1957-04-04 Method of making tubes of truncated-wedge-cross-section

Country Status (1)

Country Link
GB (1) GB838550A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427682A1 (en) * 1978-05-29 1979-12-28 Materiel Telephonique NEUTRON DETECTOR TUBE, ITS MANUFACTURING PROCESS
WO1998025713A2 (en) * 1996-12-11 1998-06-18 Greenville Tool & Die Company Method of forming and piercing a tube
US7188417B2 (en) * 2002-06-28 2007-03-13 United Technologies Corporation Advanced L-channel welded nozzle design
CN109604436A (en) * 2018-11-29 2019-04-12 湖北三江航天江北机械工程有限公司 The manufacturing process of liquid rocket engine thrust chamber body portion variable cross-section abnormity single tube

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427682A1 (en) * 1978-05-29 1979-12-28 Materiel Telephonique NEUTRON DETECTOR TUBE, ITS MANUFACTURING PROCESS
US5813266A (en) * 1995-10-31 1998-09-29 Greenville Tool & Die Company Method of forming and piercing a tube
US5974846A (en) * 1995-10-31 1999-11-02 Greenville Tool & Die Company Method of forming and piercing a tube
WO1998025713A2 (en) * 1996-12-11 1998-06-18 Greenville Tool & Die Company Method of forming and piercing a tube
WO1998025713A3 (en) * 1996-12-11 1998-07-23 Greenville Tool & Die Company Method of forming and piercing a tube
US7188417B2 (en) * 2002-06-28 2007-03-13 United Technologies Corporation Advanced L-channel welded nozzle design
CN109604436A (en) * 2018-11-29 2019-04-12 湖北三江航天江北机械工程有限公司 The manufacturing process of liquid rocket engine thrust chamber body portion variable cross-section abnormity single tube

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