GB1146044A - Improvements in the production of hollow sections on an extrusion press - Google Patents

Improvements in the production of hollow sections on an extrusion press

Info

Publication number
GB1146044A
GB1146044A GB13022/66A GB1302266A GB1146044A GB 1146044 A GB1146044 A GB 1146044A GB 13022/66 A GB13022/66 A GB 13022/66A GB 1302266 A GB1302266 A GB 1302266A GB 1146044 A GB1146044 A GB 1146044A
Authority
GB
United Kingdom
Prior art keywords
plug
billet
piercing
die
pierced
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
GB13022/66A
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.)
Schloemann AG
Original Assignee
Schloemann AG
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 Schloemann AG filed Critical Schloemann AG
Publication of GB1146044A publication Critical patent/GB1146044A/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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels

Abstract

1,146,044. Extruding ;billet piercing. SCHLOEMANN A.G. 24 March, 1966 [13 April, 1965], No. 13022/66. Headings B3H and B3P. An extrusion billet is pierced whilst enclosed in the billet container 14, Fig. 1, of an extrusion press with the die orifice closed by an hydraulically actuated retractable plug 33<SP>1</SP>, Fig. 2. The billet is pierced by a mandrel 11 actuated by piston 9 working in the main press piston 5. Throttling means are provided for slowing the piercing mandrel. After piercing, the closure plug is moved into position 33 and the pierced billet, which may be of steel, is extruded immediately into a tube by means of extrusion ram 7. Retraction means 12, 13 are provided for the ram 7. The plug 33 is rockable about a pivot 32 by a cylinder 46. When in a position in alignment with the die the plug 33 engages a recess 50 in a lifting piston 51 which pushes the plug into the die orifice. A run-out channel 40 is secured to the plug 33 so as to be moved into the die axis when the plug is moved into its inoperative position. In a modification, Fig. 3 (not shown), the lifting piston is rigid with the plug and pivotal therewith. A lubricant disc of a glass-graphite mixture is placed between the billet and die during piercing.
GB13022/66A 1965-04-13 1966-03-24 Improvements in the production of hollow sections on an extrusion press Expired GB1146044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC036869 1965-04-13

Publications (1)

Publication Number Publication Date
GB1146044A true GB1146044A (en) 1969-03-19

Family

ID=7434035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13022/66A Expired GB1146044A (en) 1965-04-13 1966-03-24 Improvements in the production of hollow sections on an extrusion press

Country Status (3)

Country Link
US (1) US3440854A (en)
DE (1) DE1452466A1 (en)
GB (1) GB1146044A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US682359A (en) * 1901-07-01 1901-09-10 Herbert R Keithley Machine for manufacturing tubular bodies.
US2128705A (en) * 1935-03-12 1938-08-30 Hatebur Fritz Bernhard Apparatus and process for the manufacture of hollow bodies
US2388558A (en) * 1941-05-09 1945-11-06 Loewy Eng Co Ltd Metal extrusion press and method of operating same
US2491897A (en) * 1945-08-31 1949-12-20 Lorant Hugo Closure plug
US2738063A (en) * 1952-01-10 1956-03-13 Schloemann Ag Device for indexing the die apertures on extrusion presses

Also Published As

Publication number Publication date
DE1452466A1 (en) 1969-03-27
US3440854A (en) 1969-04-29

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