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DE1027488B - Method of manufacturing hollow poppet valves for internal combustion engines - Google Patents

Method of manufacturing hollow poppet valves for internal combustion engines

Info

Publication number
DE1027488B
DE1027488B DET6919A DET0006919A DE1027488B DE 1027488 B DE1027488 B DE 1027488B DE T6919 A DET6919 A DE T6919A DE T0006919 A DET0006919 A DE T0006919A DE 1027488 B DE1027488 B DE 1027488B
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engines
blank
poppet valves
core
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.)
Pending
Application number
DET6919A
Other languages
German (de)
Inventor
Gerhard Kubera
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.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves GmbH
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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DET6919A priority Critical patent/DE1027488B/en
Publication of DE1027488B publication Critical patent/DE1027488B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE 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
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/01Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Description

DEUTSCHESGERMAN

Es ist bekannt, Hohlventile für Verbrennungsmaschinen auf die Weise herzustellen, daß ein zunächst massiv hergestelltes Ventil entweder von der Telleroder der Schaftseite her ausgebohrt wird. Eine derartige Herstellungsweise ist naturgemäß sehr umständlich und teuer.It is known to manufacture hollow valves for internal combustion engines in such a way that a first solid valve is drilled out either from the plate or the shaft side. Such a one The production method is naturally very cumbersome and expensive.

Die Erfindung bezieht sich auf ein Herstellen von Tellerventilen durch Strangpressen des einen Teils eines Rohlings mit an der Preß stempel sei te ausmündendem, von einem Metallkern ausgefülltem Sackloch zum Ventilschaft und Stauchen des nicht stranggepreßten Rohlings- samt in ihm enthaltenen Füllkernteils im Gesenk zum Ventilteller und ist dadurch gekennzeichnet, daß ein aus Stahl oder sonstigem Metall hoher Warmfestigkeit bestehender Füllkern verwendet wird, dessen Ende um ein Stück aus dem Rohling herausragt und der nach dem Stauchen des Tellers abgezogen wird, so daß ein hohles Ventil entsteht.The invention relates to manufacturing poppet valves by extrusion of one part a blank with a punch on the press te opening out, filled by a metal core blind hole for the valve stem and upsetting of the non-extruded blank including the filler core part contained in it in the die to the valve plate and is characterized in that one made of steel or other Metal high heat resistance existing filler core is used, the end of which is a piece of the The blank protrudes and is pulled off after the plate has been compressed, so that a hollow valve arises.

Es ist vorgeschlagen worden, Hohlventile aus einem zylindrischen Ausgangsstück über einen Dorn zu verpressen. Dieser Vorschlag eignet sich jedoch nicht für die Serienherstellung von Ventilen, da die Dorne nicht widerstandsfähig genug sind oder mit dem Ventilkegelwerkstoff beim Verpressen verschweißen. Es ist ferner vorgeschlagen worden, ein zylindrisches Ausgangswerkstück zusammen mit einem eingesteckten Kernstück zu verpressen, wobei der Mantelwerkstoff den Metallkern umschließt, so daß dieser nicht mehr entfernt werden kann bzw. ausgeschmolzen werden muß, was jedoch für die Eigenschaften des Mantelwerkstoffes sehr nachteilig ist. Erwähnt sei noch, daß es bekannt ist, engkalibrige Rohre aus Stahl unter Anwendung von Stahlfüllkernen dadurch herzustellen, daß das Ausgangsmaterial zusammen mit dem Stahlfüllkern auf dem Wege des Strangpreßverfahrens verformt und danach das Überzugsrohr vom Kernmaterial gelöst wird.It has been proposed to use hollow valves from a cylindrical outlet piece over a mandrel to press. However, this proposal is not suitable for the series production of valves, since the The mandrels are not strong enough or weld to the valve cone material during pressing. It has also been proposed to use a cylindrical starting workpiece together with an inserted To press the core piece, the jacket material enclosing the metal core so that it does not more can be removed or must be melted out, which, however, for the properties of the Sheath material is very disadvantageous. It should also be mentioned that it is known to be made of narrow-caliber pipes To produce steel using steel filler cores by putting the starting material together deformed with the steel filler core by means of the extrusion process and then the cover tube is detached from the core material.

Zur Erläuterung des Verfahrens wird auf die einzelnen Darstellungen der Zeichnung verwiesen.For an explanation of the method, reference is made to the individual representations in the drawing.

In Abb. 1 ist ein Ausgangsbutzen 1 dargestellt, in den ein Kernstück 2 eingesetzt ist. Das Volumen des Kernstückes 2 ist größer als die Ausnehmung im Butzen 1, so daß das Kernstück über den Butzen herausragt. Die Ausnehmung im Butzen 1 ist bei 3 am oberen Ende erweitert, um anch dem Preßvorgang das Kernstück leichter entfernen zu können.In Fig. 1, an output connector 1 is shown, in which a core piece 2 is inserted. The volume of the Core piece 2 is larger than the recess in the slug 1, so that the core piece over the slug protrudes. The recess in the slug 1 is widened at 3 at the upper end to also allow the pressing process to be able to remove the core more easily.

In Abb. 2 ist dieser Ausgangsbutzen auf dem Wege des Strangpressens verformt dargestellt, wodurch der Schaft 4 gebildet worden ist, in welchem das eben- so falls verformte Kernstück 5 als Seele eingelagert ist. Der obere Butzenteil 6 ist nicht mitverformt, so daß dieser ebenso wie der entsprechende Kernstückteil 7 seinen ursprünglichen Durchmesser erhalten hat. Die Verfahren zum Herstellen
von hohlen Tellerventilen
für Verbrennungsmotoren
In Fig. 2 this starting slug is shown deformed by extrusion, whereby the shaft 4 has been formed, in which the likewise deformed core piece 5 is embedded as a core. The upper slug part 6 is not deformed, so that it, like the corresponding core piece part 7, has received its original diameter. The method of manufacture
of hollow poppet valves
for internal combustion engines

Anmelder:Applicant:

Alfred Teves
Maschinen- und Armaturenfabrik
Alfred Teves
Machine and fittings factory

Kommandit-Gesellschaft,
Frankfurt/M., Gustavsburgstraße
Limited partnership,
Frankfurt / M., Gustavsburgstrasse

Gerhard Kubera, Blumberg (Bad.),
ist als Erfinder genannt worden
Gerhard Kubera, Blumberg (Bad.),
has been named as the inventor

Erweiterung 3 im Butzen ist durch das angestauchte Kernstück ausgefüllt, während das "obere Ende des Kernstückes durch eine entsprechende Ausnehmung im Preßstempel zu einem Kopf 8 verformt ist.Extension 3 in the slug is filled with the upset core, while the "upper end of the The core piece is deformed to form a head 8 through a corresponding recess in the ram.

Wird das Preßstück gemäß Abb. 2 einem Matriziervorgang unterworfen, so entsteht ein Rohling gemäß Abb. 3. Der obere und nicht verpreßte Teil 6 des Ausgangsbutzens ist zu einem Tellerteil 9 geformt, der Werkstoff des Kernstückes ist bei 10 angestaucht, wodurch eine Erweiterung der Ventiltelleröffnung nach Entfernen des Preßstückes erzielt wird.If the pressed part is subjected to a matrixing process according to Fig. 2, a blank according to FIG Fig. 3. The upper and non-pressed part 6 of the outlet piece is formed into a plate part 9, the The material of the core is upset at 10, causing the valve disk opening to expand Removal of the pressing is achieved.

Das fertige Ventil ist in Abb. 4 dargestellt, wobei die Öffnung des Ventils durch einen Deckel 11 verschlossen ist.The finished valve is shown in FIG. 4, the opening of the valve being closed by a cover 11 is.

Claims (1)

Patentanspruch:Claim: Verfahren zum Herstellen von Tellerventilen für Verbrennungsmotoren durch Strangpressen des einen Teils eines Rohlings mit an der Preßstempelseite ausmündendem, von einem Metallkern ausgefülltem Sackloch zum Ventilschaft und Stauchen des nicht stranggepreßten Rohlingssamt in ihm enthaltenen Füllkernteils im Gesenk zum Ventilteller, dadurch gekennzeichnet, daß einMethod of manufacturing poppet valves for internal combustion engines by extrusion of one part of a blank with a metal core opening out on the press ram side filled blind hole for the valve stem and upsetting of the non-extruded blank velvet in it contained filler core part in the die to the valve plate, characterized in that a 3 709 958/2363 709 958/236 aus Stahl oder sonstigem Metall hoher Warmfestigkeit bestehender Füllkern verwendet wird, dessen Ende um ein Stück aus dem Rohling herausragt und der nach dem Stauchen des Tellers abgezogen wird, so daß ein hohles Ventil entsteht. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 479 676, 560 343, 901, 649 742;A filler core made of steel or other metal with high heat resistance is used, the end of which protrudes a bit from the blank and that after the plate has been compressed is withdrawn so that a hollow valve is formed. Considered publications: German Patent Nos. 479 676, 560 343, 901, 649 742; französische Patentschrift Nr. 918 820; USA-Patentschriften Nr. 2 093 773,2 093 774.French Patent No. 918 820; U.S. Patent No. 2,093,773,2.093,774. Hierzu 1 Blatt Zeichnungen1 sheet of drawings >© 709 958/236.3.58> © 709 958 / 236.3.58
DET6919A 1952-10-31 1952-10-31 Method of manufacturing hollow poppet valves for internal combustion engines Pending DE1027488B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET6919A DE1027488B (en) 1952-10-31 1952-10-31 Method of manufacturing hollow poppet valves for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET6919A DE1027488B (en) 1952-10-31 1952-10-31 Method of manufacturing hollow poppet valves for internal combustion engines

Publications (1)

Publication Number Publication Date
DE1027488B true DE1027488B (en) 1958-04-03

Family

ID=7545438

Family Applications (1)

Application Number Title Priority Date Filing Date
DET6919A Pending DE1027488B (en) 1952-10-31 1952-10-31 Method of manufacturing hollow poppet valves for internal combustion engines

Country Status (1)

Country Link
DE (1) DE1027488B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358350A (en) * 1962-01-26 1967-12-19 Teves Thompson & Co G M B H Method of making a valve member for internal combustion engines
EP2325446A1 (en) 2008-09-18 2011-05-25 Mitsubishi Heavy Industries, Ltd. Method of manufacturing umbrella portion of hollow engine valve, and hollow engine valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479676C (en) * 1926-04-20 1929-07-20 Robert Bosch Akt Ges Process for hot-pressing metal bars while simultaneously applying a jacket made of a different metal
DE560343C (en) * 1931-04-21 1932-10-01 Mannesmann Ag Process for the extrusion of blocks consisting of several layers
DE580901C (en) * 1931-12-12 1933-07-18 Thompson Prod Inc Manufacture of valves
DE649742C (en) * 1934-12-24 1937-09-01 Boehler & Co Akt Ges Geb Process for the production of hollow poppet valves with a heat-equalizing filling
US2093773A (en) * 1931-05-16 1937-09-21 Thompson Prod Inc Method of making hollow valves
US2093774A (en) * 1931-05-20 1937-09-21 Thompson Prod Inc Method of making valves
FR918820A (en) * 1945-12-14 1947-02-19 Thompson Prod Inc Manufacturing process of hollow lift valves

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479676C (en) * 1926-04-20 1929-07-20 Robert Bosch Akt Ges Process for hot-pressing metal bars while simultaneously applying a jacket made of a different metal
DE560343C (en) * 1931-04-21 1932-10-01 Mannesmann Ag Process for the extrusion of blocks consisting of several layers
US2093773A (en) * 1931-05-16 1937-09-21 Thompson Prod Inc Method of making hollow valves
US2093774A (en) * 1931-05-20 1937-09-21 Thompson Prod Inc Method of making valves
DE580901C (en) * 1931-12-12 1933-07-18 Thompson Prod Inc Manufacture of valves
DE649742C (en) * 1934-12-24 1937-09-01 Boehler & Co Akt Ges Geb Process for the production of hollow poppet valves with a heat-equalizing filling
FR918820A (en) * 1945-12-14 1947-02-19 Thompson Prod Inc Manufacturing process of hollow lift valves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358350A (en) * 1962-01-26 1967-12-19 Teves Thompson & Co G M B H Method of making a valve member for internal combustion engines
EP2325446A1 (en) 2008-09-18 2011-05-25 Mitsubishi Heavy Industries, Ltd. Method of manufacturing umbrella portion of hollow engine valve, and hollow engine valve
US8522434B2 (en) 2008-09-18 2013-09-03 Mitsubishi Heavy Industries, Ltd. Method for production of valve head portion of hollow engine valve and hollow engine valve
US9194263B2 (en) 2008-09-18 2015-11-24 Mitsubishi Heavy Industries, Ltd. Method for production of valve head portion of hollow engine valve and hollow engine valve
US9447711B2 (en) 2008-09-18 2016-09-20 Fuji Hollow Valve Inc. Method for production of valve head portion of hollow engine valve and hollow engine valve

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