GB1069742A - Method of flow forming highly refractory metals and alloys - Google Patents

Method of flow forming highly refractory metals and alloys

Info

Publication number
GB1069742A
GB1069742A GB2620264A GB2620264A GB1069742A GB 1069742 A GB1069742 A GB 1069742A GB 2620264 A GB2620264 A GB 2620264A GB 2620264 A GB2620264 A GB 2620264A GB 1069742 A GB1069742 A GB 1069742A
Authority
GB
United Kingdom
Prior art keywords
extruding
molybdenum
alloys
refractory metals
metal
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
GB2620264A
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.)
Calumet and Hecla Inc
Original Assignee
Calumet and Hecla Inc
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 Calumet and Hecla Inc filed Critical Calumet and Hecla Inc
Publication of GB1069742A publication Critical patent/GB1069742A/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
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
    • 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
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
    • 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
    • B21C33/002—Encapsulated billet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)

Abstract

1,069,742. Extruding. CALUMET & HECLA Inc. June 24, 1964 [July 15, 1963], No. 26202/64. Heading B3P. In the hot working of refractory metal or alloy, having a melting-point above 4000‹ F., such as tungsten, rhenium, tantalum, molybdenum, columbium or their alloys, a billet 10 is coated with a softer metal 32 such as copper, nickel or steel to provide a lubricant during working. The coating is made air-tight and, for certain refractory metals, a barrier layer of mild steel or molybdenum may be provided under the lubricating metal, Fig. 6 (not shown). Solid and hollow billets are described, Figs. 2-7 (not shown). They are heated in a gas furnace, inserted in the press container 12 and extruded through die 16 by ram 24. A mandrel 28 is used when extruding tubes. During extrusion a lubricant of graphite and grease is also used. The coating is removed subsequently by acid leeching. A specific example is given for extruding a molybdenum base alloy containing titanium and zirconium.
GB2620264A 1963-07-15 1964-06-24 Method of flow forming highly refractory metals and alloys Expired GB1069742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29561863A 1963-07-15 1963-07-15

Publications (1)

Publication Number Publication Date
GB1069742A true GB1069742A (en) 1967-05-24

Family

ID=23138498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2620264A Expired GB1069742A (en) 1963-07-15 1964-06-24 Method of flow forming highly refractory metals and alloys

Country Status (3)

Country Link
DE (1) DE1452242A1 (en)
GB (1) GB1069742A (en)
SE (1) SE322192B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237693A1 (en) * 1973-07-20 1975-02-14 Yorkshire Imperial Metals Ltd Long products of reactive metal mfr - by coating with a ductile metal
US5054184A (en) * 1987-05-29 1991-10-08 Valinox Process and apparatus for hot shaping of metals or metal alloys

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237693A1 (en) * 1973-07-20 1975-02-14 Yorkshire Imperial Metals Ltd Long products of reactive metal mfr - by coating with a ductile metal
US5054184A (en) * 1987-05-29 1991-10-08 Valinox Process and apparatus for hot shaping of metals or metal alloys
WO1993013884A1 (en) * 1987-05-29 1993-07-22 Jacques Gerard Method and device for hot forming of metals or metal alloys

Also Published As

Publication number Publication date
SE322192B (en) 1970-04-06
DE1452242A1 (en) 1969-01-30

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