FI972393A0 - Processing of a memory metal - Google Patents

Processing of a memory metal

Info

Publication number
FI972393A0
FI972393A0 FI972393A FI972393A FI972393A0 FI 972393 A0 FI972393 A0 FI 972393A0 FI 972393 A FI972393 A FI 972393A FI 972393 A FI972393 A FI 972393A FI 972393 A0 FI972393 A0 FI 972393A0
Authority
FI
Finland
Prior art keywords
blank
memory metal
processing
niti
encased
Prior art date
Application number
FI972393A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI972393A (en
FI112609B (en
Inventor
Tomas Thorvaldsson
Johan Frodigh
Ola Forssell
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Publication of FI972393A0 publication Critical patent/FI972393A0/en
Publication of FI972393A publication Critical patent/FI972393A/en
Application granted granted Critical
Publication of FI112609B publication Critical patent/FI112609B/en

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
    • 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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/002—Encapsulated billet
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Metal Extraction Processes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Forging (AREA)
  • Weting (AREA)
  • Magnetic Heads (AREA)
  • Materials For Medical Uses (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A NiTi-based tube of memory metal is produced by extrusion, whereby: a) one starts off from a blank of a memory metal; b) a central hole is drilled in said blank; c) a core is introduced into the central hole, whereafter the blank is encased by a casing, and preferably also by two gables, whereby the blank is excluded from the surrounding atmosphere; d) the encased blank is heated and extruded; e) the ends of the extruded blank are removed; and f) also the core and the surrounding casing is removed. In this way, it has been accomplished to produce NiTi-based tubes of memory metal of hitherto unattained length, such as >/= 1/2 m.
FI972393A 1994-12-07 1997-06-05 Machining of memory metal FI112609B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9404243A SE505247C2 (en) 1994-12-07 1994-12-07 Process for manufacturing memory metal tubes
SE9404243 1994-12-07
PCT/SE1995/001463 WO1996017698A1 (en) 1994-12-07 1995-12-05 Machining of a memory metal
SE9501463 1995-12-05

Publications (3)

Publication Number Publication Date
FI972393A0 true FI972393A0 (en) 1997-06-05
FI972393A FI972393A (en) 1997-06-05
FI112609B FI112609B (en) 2003-12-31

Family

ID=20396247

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972393A FI112609B (en) 1994-12-07 1997-06-05 Machining of memory metal

Country Status (9)

Country Link
EP (1) EP0805724B1 (en)
JP (1) JPH10505007A (en)
AT (1) ATE213671T1 (en)
CA (1) CA2206310A1 (en)
DE (1) DE69525658T2 (en)
ES (1) ES2173211T3 (en)
FI (1) FI112609B (en)
SE (1) SE505247C2 (en)
WO (1) WO1996017698A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022886A1 (en) * 1997-10-31 1999-05-14 G. Rau Gmbh & Co. Method for producing hollow nickel titanium profiles
JP3557092B2 (en) * 1998-04-16 2004-08-25 古河電気工業株式会社 Method for manufacturing NiTi alloy pipe
CN100337764C (en) * 2005-04-27 2007-09-19 中国科学院金属研究所 High speed-ratio hot pressing method for NiTi alloy piping billet and its special mould
JP5123740B2 (en) * 2008-05-26 2013-01-23 新日鐵住金株式会社 Manufacturing method of rail joint plate for connection between no play

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014063B (en) * 1952-10-01 1957-08-22 Comptoir Ind Etirage Hot pressing process for the production of multilayer metal rods or pipes
SE441336B (en) * 1978-10-26 1985-09-30 Nyby Uddeholm Ab Capsule for the cylindrical presses for extrusion

Also Published As

Publication number Publication date
SE505247C2 (en) 1997-07-21
FI972393A (en) 1997-06-05
SE9404243L (en) 1996-06-08
DE69525658D1 (en) 2002-04-04
EP0805724B1 (en) 2002-02-27
DE69525658T2 (en) 2002-11-28
ES2173211T3 (en) 2002-10-16
SE9404243D0 (en) 1994-12-07
FI112609B (en) 2003-12-31
JPH10505007A (en) 1998-05-19
EP0805724A2 (en) 1997-11-12
CA2206310A1 (en) 1996-06-13
WO1996017698A1 (en) 1996-06-13
ATE213671T1 (en) 2002-03-15

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Legal Events

Date Code Title Description
MA Patent expired