DE947784C - Tool device for the extrusion of thin-walled tubes made of light metal - Google Patents

Tool device for the extrusion of thin-walled tubes made of light metal

Info

Publication number
DE947784C
DE947784C DESCH12720A DESC012720A DE947784C DE 947784 C DE947784 C DE 947784C DE SCH12720 A DESCH12720 A DE SCH12720A DE SC012720 A DESC012720 A DE SC012720A DE 947784 C DE947784 C DE 947784C
Authority
DE
Germany
Prior art keywords
die
extrusion
thin
light metal
tool device
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
DESCH12720A
Other languages
German (de)
Inventor
Walter Haendeler
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.)
Schloemann AG
Original Assignee
Schloemann 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 Schloemann AG filed Critical Schloemann AG
Priority to DESCH12720A priority Critical patent/DE947784C/en
Application granted granted Critical
Publication of DE947784C publication Critical patent/DE947784C/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
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/06—Press heads, dies, or mandrels for coating work

Landscapes

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

Description

Die Erfindung ,gemäß .dem Hauptpatent 938 6o5 bezieht sich auf eine Werkzeugeinrichtung zum Strangpressen dünnwandiger Rohre aus Leichtmetall, insbesondere zum Ummanteln von Kabeln, bestehend aus Matrize und Dorn mit einseitigem Fluß des Preßgutes längs .des Dornes zu dem von ihm und der Matrizenöffnung gebildeten formgebenden Ringspalt.The invention, according to .dem main patent 938 6o5 relates to a Tool device for extrusion of thin-walled tubes made of light metal, in particular for sheathing cables, consisting of a die and mandrel with one-sided flow of the Material to be pressed along .des mandrel to the shaping formed by him and the die opening Annular gap.

Die Erfindung" gemäß dem Hauptpatent besteht darin, daß die Matrize einen den Außenumfang des formgebenden Ringspaltes begrenzenden schneidenartigen Vorsprung hat.The invention "according to the main patent consists in that the die a cutting edge delimiting the outer circumference of the shaping annular gap Has a head start.

Einen Beitrag zur Verbesserung 'der Arb.eitsweise -der Werkzeugeinrichtung gemäß dem Hauptpatent leistet beim Verpressen von Leichtmetall, insbesondere Aluminium, auch die Form des Dornes. Diese Form ist erfindungsgemäß dadurch gekennzeichnet, daß die Erzeugende der kegeligen Umfläche des Dornes an seinem der Matrize benachbarten Ende in annähernd parallel zur Preßrichtung verläuft.A contribution to the improvement of the work of the tool equipment according to the main patent performs when pressing light metal, especially aluminum, also the shape of the thorn. According to the invention, this form is characterized in that that the generatrix of the conical surface of the mandrel is adjacent to the die The end runs approximately parallel to the pressing direction.

Eine solche Dornform ist an sich bekannt. In Verbindung finit der Matrizenaushildung gemäß dem Hauptpatent wird jedoch beim Verpressen von Aluminium ein besonderer Vorteil erreicht. Bei der Matrize nach dem Hauptpatent soll der zum ringbildenden Spalt fließende Aluminiumstrom von der im wesentlichen ebenen Stirnfläche der Matrize ferngehalten werden, weil die Haftfähigkeit des Aluminiums in sich bzw. seine innere Reibung kledner ist als seine Haftfähigkeit bzw. Reibring an einer Stahl-,vand. Der ringförmige, schneidenartige Vorsprung der Matrize nach dem Hauptpatent dient deshalb in erster Linie dazu. -den Flüssigkeitsstrom so zu führen, daß erst im Bereich der ringförmigen Schneide eine unmittelbare Berührung des Stromes mit der Matrize entsteht, wähnend am übrigen Teil der Matrize eine gar nicht oder nur wenig bewegte Aluminiummasse anliegt. Bei der Ausbildung nach der Erfindung lenkt der Dorn den Aluminiumstrom auf den schneidenartigen Vorsprung der Matrize hin, um auf diese Weise die Schneidwirkung der Matrize zu verbessern. ` Die Zeichnung zeigt die Erzeugende 3d der Umfläche des Dornes 3. Sie liegt iim Bereich 3b der von der Matrizenkante q. bestimmten Ebene annähernd parallel zur Preßrichtung. Dadurch wird das durch den Kanal s einströmende Preßgut auf die Schneidkante 4 .zu geleitet und der, Querschnitt. des Zuführungskanals 5 zwischen der gemäß dem Hauptpatent ausgebildeten Matrize z und dem Dorn 3 bis zur Schneidkante 4 hin so breit wie nur eben möglich gehalten.Such a mandrel shape is known per se. In connection finite the Matrizenaushildung according to the main patent is used when pressing aluminum achieved a particular advantage. In the case of the die according to the main patent, the ring-forming gap flowing aluminum stream from the substantially flat end face be kept away from the die, because the adhesive properties of the aluminum in itself or its internal friction is less than its adherence or friction ring to one Steel, vand. The ring-shaped, blade-like projection of the die according to the main patent therefore serves primarily to do this. -to guide the flow of liquid so that only direct contact with the current in the area of the annular cutting edge the die arises, while the remaining part of the die does not produce one or only one there is little moving aluminum mass. When training according to the invention steers the mandrel directs the flow of aluminum towards the blade-like projection of the die, in order to improve the cutting effect of the die in this way. `The drawing shows the generating line 3d of the surface of the mandrel 3. It lies in the area 3b of FIG from the die edge q. certain plane approximately parallel to the pressing direction. Through this the pressed material flowing in through the channel s is directed to the cutting edge 4 .zu and the, cross section. of the feed channel 5 between the according to the main patent formed die z and the mandrel 3 up to the cutting edge 4 as wide as only just kept possible.

Claims (1)

PATENTANSPRUCH: Werkzeugeinrichtung zum. Strangpressen dünnwandiger Rohre 'aus Leichtmetall, insbesondere zum Ummanteln von Kabeln, bestehend aus einem kegelig ausmündenden Dorn und einer Matrize mit im wesentlichen ebener Stirnfläche, die um die Öffnung herum einen schneidenartig vorspringenden Rand hat, nach Patent 938 605, dadurch gekennzeichnet, daß die Erzeugende (3a) der kegeligez Umfläche des Dornes (3) an seinem der Matrize benachbarten Ende in an sich bekannter Weise annähernd parallel zur .Preßrichtung verläuft. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 526 017, 534 385, 689 815; USA.-Patentschrift Nr. 814731.PATENT CLAIM: Tool device for. Extrusion of thin-walled tubes made of light metal, in particular for sheathing cables, consisting of a conical opening mandrel and a die with an essentially flat end face, which has a cutting edge protruding around the opening, according to patent 938 605, characterized in that the generatrix (3a) the conical surface of the mandrel (3) at its end adjacent to the die runs in a manner known per se approximately parallel to the pressing direction. Considered publications: German Patent Nos. 526 017, 534 385, 689 815; U.S. Patent No. 814731.
DESCH12720A 1953-04-02 1953-04-02 Tool device for the extrusion of thin-walled tubes made of light metal Expired DE947784C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH12720A DE947784C (en) 1953-04-02 1953-04-02 Tool device for the extrusion of thin-walled tubes made of light metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH12720A DE947784C (en) 1953-04-02 1953-04-02 Tool device for the extrusion of thin-walled tubes made of light metal

Publications (1)

Publication Number Publication Date
DE947784C true DE947784C (en) 1956-08-23

Family

ID=7426836

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH12720A Expired DE947784C (en) 1953-04-02 1953-04-02 Tool device for the extrusion of thin-walled tubes made of light metal

Country Status (1)

Country Link
DE (1) DE947784C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016218B (en) * 1954-02-12 1957-09-26 Schloemann Ag Tool device for extrusion of thin-walled pipes
DE1142573B (en) * 1960-05-18 1963-01-24 Thaelmann Schwermaschbau Veb Press die for extrusion presses for sheathing cables

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US814731A (en) * 1905-01-27 1906-03-13 Norman A Robertson Apparatus for extruding metals.
DE526017C (en) * 1931-06-01 Hydraulik G M B H Lead cable press
DE534385C (en) * 1931-09-25 Hydraulik G M B H Lead cable press
DE689815C (en) * 1935-03-12 1940-04-03 Bergmann Elek Citaets Werke Ak Cable compression head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE526017C (en) * 1931-06-01 Hydraulik G M B H Lead cable press
DE534385C (en) * 1931-09-25 Hydraulik G M B H Lead cable press
US814731A (en) * 1905-01-27 1906-03-13 Norman A Robertson Apparatus for extruding metals.
DE689815C (en) * 1935-03-12 1940-04-03 Bergmann Elek Citaets Werke Ak Cable compression head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016218B (en) * 1954-02-12 1957-09-26 Schloemann Ag Tool device for extrusion of thin-walled pipes
DE1142573B (en) * 1960-05-18 1963-01-24 Thaelmann Schwermaschbau Veb Press die for extrusion presses for sheathing cables

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