GB1116901A - Methods and apparatus for manufacturing tubular products from tubular blooms - Google Patents

Methods and apparatus for manufacturing tubular products from tubular blooms

Info

Publication number
GB1116901A
GB1116901A GB2666365A GB2666365A GB1116901A GB 1116901 A GB1116901 A GB 1116901A GB 2666365 A GB2666365 A GB 2666365A GB 2666365 A GB2666365 A GB 2666365A GB 1116901 A GB1116901 A GB 1116901A
Authority
GB
United Kingdom
Prior art keywords
bloom
die
end portion
carriage
plug
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
GB2666365A
Inventor
Hugh Charles Baldock
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.)
GEORGE ANSLEY MITCHELL
Original Assignee
GEORGE ANSLEY MITCHELL
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 GEORGE ANSLEY MITCHELL filed Critical GEORGE ANSLEY MITCHELL
Priority to GB2666365A priority Critical patent/GB1116901A/en
Publication of GB1116901A publication Critical patent/GB1116901A/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
    • 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
    • B21C1/27—Carriages; Drives
    • B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
    • 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
    • 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
    • B21C1/26—Push-bench drawing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

1,116,901. Making seamless tubes; drawing tubes; expanding tubes. G. A. MITCHELL. 23 June, 1965, No. 26663/65. Headings B3A, B3J and B3P. A method of making a drawn tubular product from a tubular bloom includes the steps of expanding the bloom 14 around and along its axis of generation, excluding one axial end portion thereof, inserting said excluded end portion through a die aperture 12 sized intermediate said excluded and expanded bloom portions, and then drawing the remainder of the bloom through the die aperture. The bloom 14 is initially supported by clamps 16 and is expanded by a tapered plug 20 which is forced into bore of the bloom 14 by a push rod 22, axial movement of the bloom being prevented by a stop plate 18 positioned between the die 12 and the bloom. When the plug 20 has expanded the majority of the length of the bloom the stop plate is removed and further movement of the push rod 22 causes the unexpanded end portion of the bloom to pass through the die 12. This end portion is then gripped by the draw carriage 28 and the bloom is drawn through the die 12, the plug 20 remaining in the bore in the bloom and acting as a floating mandrel. This work cycle may be repeated using a larger plug 20 until the desired wall thickness is reached. The push rod 22, which is mounted on a push carriage 24, and the draw carriage 28 are both operated by a hydraulic piston and cylinder 32 acting through cables 48 and 66. The draw carriage 28 and push carriage 24 move in unison towards and away from the die 12 by means of a cable connection 58.
GB2666365A 1965-06-23 1965-06-23 Methods and apparatus for manufacturing tubular products from tubular blooms Expired GB1116901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2666365A GB1116901A (en) 1965-06-23 1965-06-23 Methods and apparatus for manufacturing tubular products from tubular blooms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2666365A GB1116901A (en) 1965-06-23 1965-06-23 Methods and apparatus for manufacturing tubular products from tubular blooms

Publications (1)

Publication Number Publication Date
GB1116901A true GB1116901A (en) 1968-06-12

Family

ID=10247212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2666365A Expired GB1116901A (en) 1965-06-23 1965-06-23 Methods and apparatus for manufacturing tubular products from tubular blooms

Country Status (1)

Country Link
GB (1) GB1116901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083254A (en) * 1973-11-28 1975-07-05
GB2171350A (en) * 1985-02-22 1986-08-28 Laeis Gmbh Production of tubes by cold working
WO1997005972A1 (en) * 1995-08-04 1997-02-20 Felice Ballin Drawing process and machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083254A (en) * 1973-11-28 1975-07-05
GB2171350A (en) * 1985-02-22 1986-08-28 Laeis Gmbh Production of tubes by cold working
WO1997005972A1 (en) * 1995-08-04 1997-02-20 Felice Ballin Drawing process and machine

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