EP0200661A1 - Verfahren und Vorrichtung zum direkten Strangpressen unter Bildung einer vorderseitigen radialen Schale - Google Patents

Verfahren und Vorrichtung zum direkten Strangpressen unter Bildung einer vorderseitigen radialen Schale Download PDF

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Publication number
EP0200661A1
EP0200661A1 EP86420110A EP86420110A EP0200661A1 EP 0200661 A1 EP0200661 A1 EP 0200661A1 EP 86420110 A EP86420110 A EP 86420110A EP 86420110 A EP86420110 A EP 86420110A EP 0200661 A1 EP0200661 A1 EP 0200661A1
Authority
EP
European Patent Office
Prior art keywords
spinning
container
knives
implementing
gap
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.)
Withdrawn
Application number
EP86420110A
Other languages
English (en)
French (fr)
Inventor
Albert Mastrot
Christian Pluchon
Jean-Mary Wattier
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.)
Cegedur Societe de Transformation de lAluminium Pechiney SA
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
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 Cegedur Societe de Transformation de lAluminium Pechiney SA filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Publication of EP0200661A1 publication Critical patent/EP0200661A1/de
Withdrawn legal-status Critical Current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
    • B21C27/00—Containers for metal to be extruded
    • 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
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion
    • 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
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, rods or tubes
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding

Definitions

  • the invention relates to a method and a device for direct spinning of metals and alloys with radial front lining.
  • Direct spinning with an axial front liner is known in the technical literature; it should be remembered that this consists in pushing a billet located in a metal container, generally rough foundry, using a gland, through a set of spinning tools generally comprising a die, a counter die and a die holder; during spinning, the cortical part of the billet called "jacket” is removed by passing through a cylindrical and axial gap formed between the container and the die holder.
  • the method according to the invention consists in providing an interstice in the form of a flat circular crown or of slightly frustoconical shape, of constant thickness (j) and of span (h), open to the air, between the end of the container. adjacent to its bore and the face of all the spinning tools located opposite; it is through this interstice that the shirt in formation flows substantially radially, from the cortical zone of the spun billet.
  • the interstice has a frustoconical shape, the i angle at the top of the cone is greater than or equal to 75 °.
  • j and h depend on a large number of operating parameters such as the temperature of the billet, the nature of the alloy, the spinning speed, the length of the billet, the spinning ratio, etc. but these can be easily determined by a person skilled in the art, by calculation, experiment or simulation (using plasticine, for example).
  • the spinning device comprises several knives located in the gap described above, the cutting edge of which is directed towards the axis of the container and which divide the jacket into as many "petals" during spinning. These knives are preferably arranged at equal angular intervals. These knives can be made up of individual elements or be an integral part of a circular part attached to the end of the container or even be machined directly in an extra length from the end of the core of the container.
  • the billet and / or the container are preferably lubricated with conventional lubricants such as graphitized grease, glasses, etc. It should be noted that the lubricant used is completely evacuated on the external face of the "petals" and is not found in any case on the spun product.
  • FIG. 1 represents the container (1) of a spinning press (not shown) in which a billet (2) is transformed into a spun product (3) through a die (4), inserted in a die holder ( 5).
  • Figures 1 and 2a we find a container (1) in several hooped parts (la, lb) and an assembly of the die (4), of the die holder (5) of the counter-thread (9) of the same axis (7 ), the front part of the container comprising in the vicinity of the bore a planar circular part (12), a frustoconical surface (13) and a planar circular crown (14); knives (11) are anchored in this end whose cutting edge (15) parallel to the axis (7) is substantially at the bore of the container.
  • the die holder (5) has a flat surface (19) which, located opposite the reach (12) of the container, defines the gap (6) of width (j) and of reach (h) .
  • the knives are fixed to the container by screws (16), in their respective housings (17).
  • the device further comprises centering studs (10) screwed into the container and which engage in corresponding cavities (18) of the die holder (5).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Powder Metallurgy (AREA)
  • Massaging Devices (AREA)
  • External Artificial Organs (AREA)
  • Metal Extraction Processes (AREA)
EP86420110A 1985-05-02 1986-04-29 Verfahren und Vorrichtung zum direkten Strangpressen unter Bildung einer vorderseitigen radialen Schale Withdrawn EP0200661A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507240A FR2581326A1 (fr) 1985-05-02 1985-05-02 Methode et dispositif de filage direct lubrifie avec chemisage avant radial
FR8507240 1985-05-02

Publications (1)

Publication Number Publication Date
EP0200661A1 true EP0200661A1 (de) 1986-11-05

Family

ID=9319225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86420110A Withdrawn EP0200661A1 (de) 1985-05-02 1986-04-29 Verfahren und Vorrichtung zum direkten Strangpressen unter Bildung einer vorderseitigen radialen Schale

Country Status (9)

Country Link
US (1) US4735070A (de)
EP (1) EP0200661A1 (de)
JP (1) JPS6216816A (de)
KR (1) KR860008813A (de)
CN (1) CN86103052A (de)
DD (1) DD252984A5 (de)
ES (1) ES8708192A1 (de)
FR (1) FR2581326A1 (de)
NO (1) NO861712L (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832767A (en) * 1997-01-06 1998-11-10 Alusuisse Technology & Management Ltd. Process for extruding a section or the like from an ingot and a device for that purpose
CN105478517A (zh) * 2015-12-30 2016-04-13 镇江耐丝新型材料有限公司 铜粉托盘装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE271378C (de) *
BE535450A (de) *
US2688400A (en) * 1950-11-01 1954-09-07 Dow Chemical Co Extrusion scalping die
US3034642A (en) * 1957-10-11 1962-05-15 Int Nickel Co Extrusion of metal
FR1533484A (fr) * 1967-06-23 1968-07-19 Yorkshire Imp Metals Ltd Tête de pression pour le filage des métaux
FR1536990A (fr) * 1967-05-30 1968-08-23 Trefimetaux Procédé pour le filage avec chemisage et appareillage mettant ce procédé en oeuvre
SU464354A1 (ru) * 1972-05-29 1975-03-25 Государственный Научно-Исследовательский И Проектный Институт Сплавов И Обработки Цветных Металлов Матрица дл прессовани изделий
US4056964A (en) * 1976-01-15 1977-11-08 Sumitomo Light Metal Industries, Ltd. Apparatus for metal extrusion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736786A (en) * 1971-07-09 1973-06-05 Reynolds Metals Co Extruding apparatus and method
SU595032A1 (ru) * 1975-10-03 1978-02-28 Государственный Научно-Исследовательский И Проектный Институт Сплавов И Обработки Цветных Металлов Способ работы инструмента дл экструдировани заготовок
CH621948A5 (de) * 1977-07-12 1981-03-13 Alusuisse
SU904856A1 (ru) * 1979-04-23 1982-02-15 Физико-Технический Институт Ан Белсср Способ гидроэкструзии заготовки
JPS56102312A (en) * 1980-01-18 1981-08-15 Furukawa Kinzoku Kogyo Kk Hot extruding method for metallic material
JPS56111522A (en) * 1980-02-08 1981-09-03 Furukawa Kinzoku Kogyo Kk Hot extruding method for metallic material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE271378C (de) *
BE535450A (de) *
US2688400A (en) * 1950-11-01 1954-09-07 Dow Chemical Co Extrusion scalping die
US3034642A (en) * 1957-10-11 1962-05-15 Int Nickel Co Extrusion of metal
FR1536990A (fr) * 1967-05-30 1968-08-23 Trefimetaux Procédé pour le filage avec chemisage et appareillage mettant ce procédé en oeuvre
FR1533484A (fr) * 1967-06-23 1968-07-19 Yorkshire Imp Metals Ltd Tête de pression pour le filage des métaux
SU464354A1 (ru) * 1972-05-29 1975-03-25 Государственный Научно-Исследовательский И Проектный Институт Сплавов И Обработки Цветных Металлов Матрица дл прессовани изделий
US4056964A (en) * 1976-01-15 1977-11-08 Sumitomo Light Metal Industries, Ltd. Apparatus for metal extrusion

Also Published As

Publication number Publication date
FR2581326A1 (fr) 1986-11-07
CN86103052A (zh) 1986-10-29
JPS6216816A (ja) 1987-01-26
KR860008813A (ko) 1986-12-18
DD252984A5 (de) 1988-01-06
ES8708192A1 (es) 1987-10-01
US4735070A (en) 1988-04-05
ES554544A0 (es) 1987-10-01
NO861712L (no) 1986-11-03

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Inventor name: WATTIER, JEAN-MARY