GB1270672A - Improvements in or relating to parallel-convoluted tubing - Google Patents

Improvements in or relating to parallel-convoluted tubing

Info

Publication number
GB1270672A
GB1270672A GB5908568A GB5908568A GB1270672A GB 1270672 A GB1270672 A GB 1270672A GB 5908568 A GB5908568 A GB 5908568A GB 5908568 A GB5908568 A GB 5908568A GB 1270672 A GB1270672 A GB 1270672A
Authority
GB
United Kingdom
Prior art keywords
convolution
tube
die
die members
produced
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
GB5908568A
Inventor
Michael Hardenbrook Whiteley
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB5908568A priority Critical patent/GB1270672A/en
Publication of GB1270672A publication Critical patent/GB1270672A/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
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B21D15/10—Corrugating tubes transversely, e.g. helically by applying fluid pressure
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/041—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/045—Closing or sealing means
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

1,270,672. Stamping; making convoluted tubing. PLESSEY CO. Ltd. 6 Jan., 1970 [12 Dec., 1968], No. 59085/68. Headings B3A and B3Q. In a method and apparatus for making convoluted tubes a tube 3 is slidably mounted on a mandrel 19 within a die which comprises a first die member 5 having an annular groove 16 defining half of the convolution to be produced and a second die member which consists of two half-die members 6, separable along a plane 11, having grooves 14 defining the complementary half of the convolution to be produced and grooves 13 for receiving convolutions already produced on the tube, fluid pressure is introduced into the tube 3 via a channel 25 in the mandrel to bulge the section of tube 3 between seals 20 and the two die members the bulge being of greater axial length but less height than the convolution to be produced and then, when the pressure within the tube reaches a predetermined value, moving the two die members towards each other to form the convolution. After forming the convolution the pressure inside the tube is reduced and the die members moved so that a part 33 abuts stops 34. The two half-die members 6 are separated at the plane 11 and the die members moved back so that half-die members abut a body part 1 before they are brought together to enclose the convolution just formed in the first annular groove 13. Die member 5 is then withdrawn to the position shown in Fig. 1 ready for the production of the next convolution.
GB5908568A 1968-12-12 1968-12-12 Improvements in or relating to parallel-convoluted tubing Expired GB1270672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5908568A GB1270672A (en) 1968-12-12 1968-12-12 Improvements in or relating to parallel-convoluted tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5908568A GB1270672A (en) 1968-12-12 1968-12-12 Improvements in or relating to parallel-convoluted tubing

Publications (1)

Publication Number Publication Date
GB1270672A true GB1270672A (en) 1972-04-12

Family

ID=10483032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5908568A Expired GB1270672A (en) 1968-12-12 1968-12-12 Improvements in or relating to parallel-convoluted tubing

Country Status (1)

Country Link
GB (1) GB1270672A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392292A (en) * 1979-06-06 1983-07-12 Johnson, Matthey & Co., Limited Forming process
GB2186828A (en) * 1986-02-20 1987-08-26 Man Technologie Gmbh Forming a coaxial corrugation in a thin-walled tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392292A (en) * 1979-06-06 1983-07-12 Johnson, Matthey & Co., Limited Forming process
GB2186828A (en) * 1986-02-20 1987-08-26 Man Technologie Gmbh Forming a coaxial corrugation in a thin-walled tube
US4742707A (en) * 1986-02-20 1988-05-10 Man Technologie Gmbh Device for forming a coaxial corrugation in a thin-walled tube
GB2186828B (en) * 1986-02-20 1989-11-22 Man Technologie Gmbh A device for forming a coaxial corrugation in a thin-walled tube

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