US3654687A - Hydrostatic extrusion of compound material - Google Patents

Hydrostatic extrusion of compound material Download PDF

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Publication number
US3654687A
US3654687A US32195A US3654687DA US3654687A US 3654687 A US3654687 A US 3654687A US 32195 A US32195 A US 32195A US 3654687D A US3654687D A US 3654687DA US 3654687 A US3654687 A US 3654687A
Authority
US
United States
Prior art keywords
casing
core
billet
plate
die
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 - Lifetime
Application number
US32195A
Other languages
English (en)
Inventor
Martin Burstrom
Jan Nilsson
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Application granted granted Critical
Publication of US3654687A publication Critical patent/US3654687A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/007—Hydrostatic extrusion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Definitions

  • ABSTRACT In hydrostatic extrusion of a wire or rod of one metal with a casing of another metal, a billet is extruded through a die from a pressure chamber provided with a conical surface adjacent the die opening.
  • the billet is so constructed that fluid is prevented from entering between the core and the casing and that the axial forces created by the differences in moulding resistance of the different materials are transferred between the casing and the core. This may be done by providing a member which overlies the rear ends of the casing and core. The joint between the casing and core is sealed at the rear ends.
  • the front end of the core is shaped to match the conical surface of the die, and the casing may be brought down over this front end, the front end of the casing tapering in thickness.
  • the Prior Art It is known by means of hydrostatic extrusion to surround a wire or rod of a hard material with a casing or softer material.
  • a wire or core is used which has a smaller diameter than the finished compound product and only the casing is reduced during the extrusion.
  • the material for the casing is obtained from a substantially tubular casing through which the wire or rod forming the core in the finished product is threaded, after which the tubular casing is pressed along its front part tightly around the wire or rod while along the greater part of its length there will be an annular gap between the wire rod and the casing.
  • the pressure medium will thus be in contact with the surfaces which in the finished product should, if possible, be tightly joined. This means that layers may be formed on the surface which jeopardize the ad hesion.
  • the sealing can be effected by joining the flange of the plate and the casing of the billet by means of welding or soldering.
  • the core can be placed in the casing in such a position that its rear end surface is at a distance from and completely inside the rear end surface of the casing so that a recess is formed.
  • a plate provided with a flange can be inserted which seals against both the inner surface of the casing and the end surface of the core. Even when the end surface of the billet is shaped in this way a sealing plate of metal provided with a flange may be used and the sealing between the flange and the casing of the billet is effected by means of welding or soldering.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
US32195A 1967-09-27 1970-04-27 Hydrostatic extrusion of compound material Expired - Lifetime US3654687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE13258/67A SE318540B (enrdf_load_html_response) 1967-09-27 1967-09-27

Publications (1)

Publication Number Publication Date
US3654687A true US3654687A (en) 1972-04-11

Family

ID=20297119

Family Applications (1)

Application Number Title Priority Date Filing Date
US32195A Expired - Lifetime US3654687A (en) 1967-09-27 1970-04-27 Hydrostatic extrusion of compound material

Country Status (4)

Country Link
US (1) US3654687A (enrdf_load_html_response)
AT (1) AT316269B (enrdf_load_html_response)
SE (1) SE318540B (enrdf_load_html_response)
SU (1) SU464093A3 (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777361A (en) * 1972-08-04 1973-12-11 Western Electric Co Method of producing clad wire
US3807032A (en) * 1971-03-15 1974-04-30 Asea Ab Method of manufacturing tubes of compound material
US4037305A (en) * 1975-09-24 1977-07-26 Allmanna Svenska Elektriska Aktiebolaget Method for hydrostatic extrusion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286337A (en) * 1963-08-20 1966-11-22 Commissariat Energie Atomique Processes for shaping metals under high hydrostatic pressure
US3344507A (en) * 1962-12-19 1967-10-03 Atomic Energy Authority Uk Hydrostatic extrusion of sheathed ceramic nuclear fuel material
US3344636A (en) * 1963-04-04 1967-10-03 Council Scient Ind Res Extrusion of metals
US3417589A (en) * 1965-10-18 1968-12-24 Pressure Technology Corp Of Am Process and apparatus for working metals under high fluid pressure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344507A (en) * 1962-12-19 1967-10-03 Atomic Energy Authority Uk Hydrostatic extrusion of sheathed ceramic nuclear fuel material
US3344636A (en) * 1963-04-04 1967-10-03 Council Scient Ind Res Extrusion of metals
US3286337A (en) * 1963-08-20 1966-11-22 Commissariat Energie Atomique Processes for shaping metals under high hydrostatic pressure
US3417589A (en) * 1965-10-18 1968-12-24 Pressure Technology Corp Of Am Process and apparatus for working metals under high fluid pressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807032A (en) * 1971-03-15 1974-04-30 Asea Ab Method of manufacturing tubes of compound material
US3777361A (en) * 1972-08-04 1973-12-11 Western Electric Co Method of producing clad wire
US4037305A (en) * 1975-09-24 1977-07-26 Allmanna Svenska Elektriska Aktiebolaget Method for hydrostatic extrusion

Also Published As

Publication number Publication date
SU464093A3 (ru) 1975-03-15
AT316269B (de) 1974-07-10
SE318540B (enrdf_load_html_response) 1969-12-15

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