GB1091883A - Improvements in the production of seamless plated hollow elements - Google Patents

Improvements in the production of seamless plated hollow elements

Info

Publication number
GB1091883A
GB1091883A GB4801564A GB4801564A GB1091883A GB 1091883 A GB1091883 A GB 1091883A GB 4801564 A GB4801564 A GB 4801564A GB 4801564 A GB4801564 A GB 4801564A GB 1091883 A GB1091883 A GB 1091883A
Authority
GB
United Kingdom
Prior art keywords
core
billet
workpiece
production
body portion
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
GB4801564A
Inventor
Peter Odenthal
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to GB4801564A priority Critical patent/GB1091883A/en
Publication of GB1091883A publication Critical patent/GB1091883A/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
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • 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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/004—Composite billet

Abstract

1,091,883. Billet piercing; extruding. MANNESMANN A.G. Nov. 25, 1964, No. 48015/64. Headings B3A and B3H. A composite billet for making an internally plated hollow workpiece by hot piercing comprises a body portion 3, Fig. 1, with a core 4 whose smallest cross-sectional area is less than three times the area of the body portion, the core having a conical enlargement 4a at one end. In the manufacture of an internally plated steel tube, the body 3 may be of mild steel and the core 4 of alloy steel. The core may extend completely through the body. A base disc 5 of any low quality metal is releasably secured to the body, e.g. by a simply holding weld. The heated billet is pierced by a punch 6 to form the hollow workpiece (7), Fig. 2 (not shown), and this workpiece is subsequently formed into a tube in a pilger mill or an extrusion press. A specific example is given.
GB4801564A 1964-11-25 1964-11-25 Improvements in the production of seamless plated hollow elements Expired GB1091883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4801564A GB1091883A (en) 1964-11-25 1964-11-25 Improvements in the production of seamless plated hollow elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4801564A GB1091883A (en) 1964-11-25 1964-11-25 Improvements in the production of seamless plated hollow elements

Publications (1)

Publication Number Publication Date
GB1091883A true GB1091883A (en) 1967-11-22

Family

ID=10447062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4801564A Expired GB1091883A (en) 1964-11-25 1964-11-25 Improvements in the production of seamless plated hollow elements

Country Status (1)

Country Link
GB (1) GB1091883A (en)

Similar Documents

Publication Publication Date Title
GB1258141A (en)
GB936583A (en) Improvements in or relating to mandrels for extrusion presses
GB1081896A (en) Improvements in or relating to the shaping of metals by pressure
GB1298564A (en) Making tapered tubes
ES352487A1 (en) Extrusion mandrel
GB1091883A (en) Improvements in the production of seamless plated hollow elements
GB1318607A (en) Process for the manufacture of seamless steel tubes
ES466271A1 (en) Extrusion press for extruding tubes
GB1426274A (en) Method of and apparatus for making ball studs
GB1212773A (en) Cold forming tubular metallic bodies
GB1060869A (en) Method and apparatus for extruding tubular members from solid billets
GB1329225A (en) Tube extrusion process
GB546446A (en) Oxydisable metals and alloys
GB1080456A (en) Improvements in hot impact extrusion techniques
GB1349553A (en) Production of seamless metal tubes
GB1297690A (en)
GB961796A (en) Improvements in the cold extrusion of metals
GB963279A (en) Improvements in or relating to extrusion of metals of hollow section
GB1030947A (en) Process and equipment for the production of elongated hollow bodies
GB432703A (en) Improvements in the manufacture of metal tubes
GB1122469A (en) Billet piercing and extrusion
GB829460A (en) Improvements in or relating to metal extrusion presses
GB578066A (en) Improvements in or relating to drawing dies
GB1184707A (en) A Method and Apparatus for Producing Seamless Rolled Tubes
GB884410A (en) Manufacture of beryllium tubes