GB879713A - Improvements relating to a method of and means for forming a domed member from sheet or plate metal - Google Patents

Improvements relating to a method of and means for forming a domed member from sheet or plate metal

Info

Publication number
GB879713A
GB879713A GB34882/56A GB3488256A GB879713A GB 879713 A GB879713 A GB 879713A GB 34882/56 A GB34882/56 A GB 34882/56A GB 3488256 A GB3488256 A GB 3488256A GB 879713 A GB879713 A GB 879713A
Authority
GB
United Kingdom
Prior art keywords
plates
die ring
side wall
hollow body
fluid
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
GB34882/56A
Inventor
Richard Godfrey Greenwood
Gerald Keith Mantle
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.)
THOMPSON J WOLVERHAMPTON Ltd
Original Assignee
THOMPSON J WOLVERHAMPTON 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 THOMPSON J WOLVERHAMPTON Ltd filed Critical THOMPSON J WOLVERHAMPTON Ltd
Priority to GB34882/56A priority Critical patent/GB879713A/en
Priority to DET14379A priority patent/DE1120413B/en
Publication of GB879713A publication Critical patent/GB879713A/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
    • 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
    • B21D26/021—Deforming sheet bodies
    • 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
    • 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
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles

Landscapes

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

Abstract

879,713. Making pressure vessels; stamping. THOMPSON (WOLVERHAMPTON) Ltd., JOHN. Oct. 30, 1957 [Nov. 14, 1956], No. 34882/56. Classes 83 (2) and 83 (4). A method of forming a domed member from sheet or plate metal comprises fabricating from the metal a fluid-tight hollow body which has an annular side wall and two opposed end walls at least one of which has a curvature less than that required in the member, locating within the body during the fabrication means for preventing contraction of the side wall and inflating the body to increase the curvature of said one end wall to that required in the member. In an embodiment the curved edges 3, 4 of two slightly dished plates 1, 2 preformed from a plurality of steel panels 5 are welded to a circular cast iron die ring 6 provided with a peripheral groove 7 and radial apertures 8. Fluid pressure is supplied to the so-formed hollow body through an inlet 9 to inflate the plates to the required spheroidal shape after which the body is cut in two around the annular wall 10 to provide two similar domed members for use as the ends of a pressure vessel. The dish-shaped blanks may each be fabricated from a plurality of steel plates to provide a laminated structure. In another embodiment two discs 11 and 12 are welded around opposite edges of an annular side wall 13 of U-shaped cross-section the die ring 6 being disposed within the side wall (Fig. 5). The die ring may comprise two hollow tubes 6a separated by spacers 6b and strengthened by web plates 6c (Fig. 7). The inflated hollow body containing the latter type die ring may constitute a pressure vessel of spheroidal shape in which the tubes 6a are used for cooling fluid or fluid to be preheated. Alternatively, the tubes 6a of the die ring are replaced by mild steel rings separated by a spacer of lesser diameter to provide a peripheral groove. The rigidity of the domed end walls is increased by welding to the outer surface a series of circular plates 15 or a cruciform bulkhead to the inner surface of said walls. In a further embodiment the hollow body is wholly sealed and then expanded by the ignition of a slow-burning explosive, e.g. cordite, located therein.
GB34882/56A 1956-11-14 1956-11-14 Improvements relating to a method of and means for forming a domed member from sheet or plate metal Expired GB879713A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB34882/56A GB879713A (en) 1956-11-14 1956-11-14 Improvements relating to a method of and means for forming a domed member from sheet or plate metal
DET14379A DE1120413B (en) 1956-11-14 1957-11-07 Process for grooving flat or arched sheet metal floors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1187964X 1956-11-14
GB1120413X 1956-11-14
GB34882/56A GB879713A (en) 1956-11-14 1956-11-14 Improvements relating to a method of and means for forming a domed member from sheet or plate metal

Publications (1)

Publication Number Publication Date
GB879713A true GB879713A (en) 1961-10-11

Family

ID=27259245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34882/56A Expired GB879713A (en) 1956-11-14 1956-11-14 Improvements relating to a method of and means for forming a domed member from sheet or plate metal

Country Status (2)

Country Link
DE (1) DE1120413B (en)
GB (1) GB879713A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003436A1 (en) * 1984-12-13 1986-06-19 Dynatrans Technology Ltd. A method of producing bidimensionally curved, thin-walled tank end walls
CN113305232A (en) * 2021-06-11 2021-08-27 孙冬 Quick former of machine tooling
CN113333621A (en) * 2021-06-11 2021-09-03 孙冬 Welding seam-free forming method for spherical tank
CN114407403A (en) * 2021-12-09 2022-04-29 陕西法士特齿轮有限责任公司 Device and method for manufacturing end surface O-shaped ring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1013046A (en) * 1908-01-22 1911-12-26 Everett N Murphy Machine for bulging tank-heads.
US2088053A (en) * 1934-11-30 1937-07-27 Farrell Mfg Company Device for forming tank vehicles
US2715377A (en) * 1954-03-23 1955-08-16 Jr Hartwell H Gary Method of forming heads for boilers, pressure vessels, tanks, and the like

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003436A1 (en) * 1984-12-13 1986-06-19 Dynatrans Technology Ltd. A method of producing bidimensionally curved, thin-walled tank end walls
CN113305232A (en) * 2021-06-11 2021-08-27 孙冬 Quick former of machine tooling
CN113333621A (en) * 2021-06-11 2021-09-03 孙冬 Welding seam-free forming method for spherical tank
CN113305232B (en) * 2021-06-11 2023-01-03 洛阳隆胜兴源机械制造有限公司 Quick former of machine tooling
CN113333621B (en) * 2021-06-11 2023-01-20 湖南湘东化工机械有限公司 Welding seam-free forming method for spherical tank
CN114407403A (en) * 2021-12-09 2022-04-29 陕西法士特齿轮有限责任公司 Device and method for manufacturing end surface O-shaped ring
CN114407403B (en) * 2021-12-09 2024-04-09 陕西法士特齿轮有限责任公司 Device and method for manufacturing end face O-shaped ring

Also Published As

Publication number Publication date
DE1120413B (en) 1961-12-28

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