DE622347C - Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal - Google Patents

Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal

Info

Publication number
DE622347C
DE622347C DEP63528D DEP0063528D DE622347C DE 622347 C DE622347 C DE 622347C DE P63528 D DEP63528 D DE P63528D DE P0063528 D DEP0063528 D DE P0063528D DE 622347 C DE622347 C DE 622347C
Authority
DE
Germany
Prior art keywords
tungsten carbide
tools
production
alloys
additional auxiliary
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
DEP63528D
Other languages
German (de)
Inventor
Dr Kurt Agte
Dr Kurt Moers
Karl Schroeter
Dr Hans Wolff
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.)
Fried Krupp AG
Original Assignee
Fried Krupp 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 Fried Krupp AG filed Critical Fried Krupp AG
Priority to DEP63528D priority Critical patent/DE622347C/en
Application granted granted Critical
Publication of DE622347C publication Critical patent/DE622347C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Description

Verfahren zur Herstellung von Hartmetallegierungen für Arbeitsgeräte und Werkzeuge aus Wolframkarbid und einem zusätzlichen Hilfsmetall Für zur Bearbeitung vorn Werkstoffen bestimmte Arbeitsgeräte und Werkzeuge sind in den letzten Jahren eine Reihe von Hartrnetallegierungen bekanntgeworden, von denen besonders ein gesintertes Gemisch von Wolframkarbid und einem zusätzlichen, niedriger schmelzenden Hilfsmetall der Eisengruppe die härtesten und zähesten Werkstoffe, wie Grauguß oder Manganstahl, mit hoher Schnittgeschwindigkeit und ,geringer Abnutzung zu bearbeiten gestattet. Es hat sich indes gezeigt, daß diese und ähnliche bekannte Legierungen für die Bearbeitung weniger harter Werkstoffe, wie z. B. für die Bearbeitung gewöhnlichen Stahls, nicht immer die technisch günstigsten sind. Es treten nämlich an derartigen Werkstoffen bei ihrer Verwendung manchmal Auskolkungen an den Schneiden auf, die die Werkzeuge schon nach verhältnismäßig kurzer Zeit unbrauchbar machen können.Process for the production of hard metal alloys for work tools and tools made of tungsten carbide and an additional auxiliary metal for machining Work equipment and tools that are specific to materials have changed over the past few years a number of hard metal alloys have become known, especially one of which is sintered Mixture of tungsten carbide and an additional, lower-melting auxiliary metal the iron group consists of the hardest and toughest materials, such as gray cast iron or manganese steel, Can be machined with high cutting speed and low wear. It has been shown, however, that these and similar known alloys for machining less hard materials, such as B. for machining ordinary steel, not are always the technically cheapest. This is because such materials occur when they are used, sometimes cavities on the cutting edges on the tools can make them unusable after a relatively short time.

Es hat sich nun gezeigt, daB der vorstehend beschriebene Übelstand behoben werden kann, wenn man fein gepulvertes Wolframkarbid mit etwa 3 bis 70/. Kohlenstoff mit ebenfalls fein gepulvertem Hilfsmetall (Eisen, Nickel, Kobalt) bis 25 0/0 und ebensolchem Titankarbid bis 40 °]o mischt, zu Formen preßt. und sintert oder- gleichzeitig mit dem Pressen sintert und die auf diese Weise hergestellten Legierungen verwendet. Die Menge des zusätzlich eingebrachten Titankarbids richtet. sich jeweils nach dem Verwendungszweck der Legierungen. Zweckmäßige Zusammensetzungen sind beispielsweise die folgenden.: i. 75 °/o Wolframkarbid, io 010 Titankarbid, 15 olo.Nickel; 2. 60 010 Wolframkarbid; 30 oia Titankarbid, io ojo Kobalt.It has now been shown that the deficiency described above can be remedied if finely powdered tungsten carbide with about 3 to 70 /. Carbon with finely powdered also auxiliary metal (iron, nickel, cobalt) to 25 0/0 and up to 40 ° such titanium carbide] o mixed, pressed into shapes. and sinters or sinters at the same time as pressing and uses the alloys produced in this way. The amount of additionally introduced titanium carbide is directed. depending on the intended use of the alloys. Suitable compositions are, for example, the following: i. 75 % tungsten carbide, 1010 titanium carbide, 15 % nickel; 2. 60,010 tungsten carbide; 30 oia titanium carbide, io ojo cobalt.

Es ist zwar bereits bekannt, Wolframlegierungen unter Zusatz einer geringen Menge Titan und mit einem 30 °/o übersteigenden Eisenzusatz zu erschmelzen. Derartige Legierungen zeigen aber infolge ihrer anderen Zusammensetzung und Struktur ein ganz anderes Verhalten. Auch. ist es bereits vorgeschlagen worden, hochschmelzende Metalle, z. B. Wolfram, Molybdän, Chrom, Uran, Titan, Vanadium, einzeln oder gemischt, mit Kohlenstoff, Bor oder Silizium und gegebenenfalls Hilfsmetall, wie Eisen, Nickel, Kobalt, zu erschmelzen, das erschmolzene Produkt darauf nach einer raschen Abkühlung zu pulvern und das gepulverte Material nach dem Zusammenpressen bei einer solchen Temperatur zu sintern, bei der das durch äei Schmelz--- -und -Abkühlungsprozeß erzielte feine Gefüge nicht zerstört wird. Auch :diese durch Schmelzen - der'-` Bestandteile, - anschließendes Pulvern und Sintern hergestellten Legierungen können hinsichtlich ihrer Struktur und Leistungsfähigkeit mit den nach dem neuen Verfahren hergestellten Legierungen nicht verglichen werden.Although it is already known, tungsten alloys with the addition of a To melt a small amount of titanium and with an addition of iron in excess of 30%. However, such alloys show due to their different composition and structure a completely different behavior. Even. it has already been proposed to be high melting point Metals, e.g. B. tungsten, molybdenum, chromium, uranium, titanium, vanadium, individually or mixed, with carbon, boron or silicon and optionally auxiliary metals such as iron, nickel, Cobalt, to melt, the melted product on it after a rapid cooling to powder and the powdered material after compression in such temperature to sinter, in which the melting and cooling process The fine structure achieved is not destroyed. Also: this by melting - the '-' Components, - subsequent powdering and sintering made alloys in terms of their structure and performance compared to the new process manufactured alloys cannot be compared.

Mit nach der vorliegenden Erfindung hergestellten Legierungen-gelingt es,' auch Werkstoffe, wie gewöhnlichen Stahl, mit -sehr großen Schnittgeschwindigkeiten und geringer Abnutzung; also mit sehr 'großer Wirtschaftlichkeit, zu bearbeiten, Außerdem besitzen diese Legierungen auch noch die Fähigkeit, auch die härtesten und zähesten Werkstoffe mit sehr gutem Erfolg zu bearbeiten: Sie sind' ferner nicht nur für die Zwecke der spanabhebenden Bearbeitung geeignet, sondern können auch für andere Arbeitsgeräte, wie Ziehsteine u. dgl., verwendet werden.Alloys produced according to the present invention succeed it, 'also materials such as ordinary steel, with very high cutting speeds and low wear; so with very 'great economic efficiency to process, In addition, these alloys also have the ability to handle even the hardest and the toughest materials to work with very good success: They are 'further not only suitable for the purpose of machining, but can also For other tools, such as drawing dies and the like., Can be used.

Claims (1)

PATLXTANSPRUCH: Verfahren zur Herstellung von Hartmetallegierungen für Arbeitsgeräte und Werkzeuge aus Wolframkarbid und einem zusätzlichen Hilfsmetall, wie Eisen, Nickel, Kobalt, dadurch gekennzeichnet, daß fein gepulvertes Wolframkarbid mit etwa 3 bis 7 °(o Kohlenstoff mit ebenfalls fein gepulvertem Hilfsmetall (Eisen, Nickel, Kobalt) bis 25-01, und ebensolchem Titankarbid bis qo ojo gemischt, zu Formen gepreßt und gesintert oder gleichzeitig mit dem Pressen gesintert wird.PATLX CLAIM: Process for the production of hard metal alloys for implements and tools made of tungsten carbide and an additional auxiliary metal, such as iron, nickel, cobalt, characterized in that finely powdered tungsten carbide with about 3 to 7 ° (o carbon with also finely powdered auxiliary metal (iron, Nickel, cobalt) up to 25-01, and the same titanium carbide up to qo ojo mixed to form pressed and sintered or sintered simultaneously with the pressing.
DEP63528D 1931-07-19 1931-07-19 Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal Expired DE622347C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP63528D DE622347C (en) 1931-07-19 1931-07-19 Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP63528D DE622347C (en) 1931-07-19 1931-07-19 Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal

Publications (1)

Publication Number Publication Date
DE622347C true DE622347C (en) 1935-11-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEP63528D Expired DE622347C (en) 1931-07-19 1931-07-19 Process for the production of hard metal alloys for work equipment and tools from tungsten carbide and an additional auxiliary metal

Country Status (1)

Country Link
DE (1) DE622347C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740350C (en) * 1938-01-30 1943-10-18 Deutsche Edelstahlwerke Ag Use of a hard metal alloy for tools for machining long-chipping materials
DE920100C (en) * 1948-08-09 1954-11-11 Boehler & Co Ag Geb Use of hard metals for the production of stone working tools, in particular deep drilling tools
DE973807C (en) * 1942-04-19 1960-06-09 Beteiligungs & Patentverw Gmbh Process for the production of hard and wear-resistant utensils
DE3211047A1 (en) * 1981-03-27 1982-11-25 Kennametal Inc., 15650 Latrobe, Pa. PREFERRED BONDED, CEMENTED CARBIDE BODY AND METHOD FOR THE PRODUCTION THEREOF
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
DE9402109U1 (en) * 1994-02-09 1994-03-31 Maartens Kleinmetaal B.V., Haarlem Rotary cutting tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740350C (en) * 1938-01-30 1943-10-18 Deutsche Edelstahlwerke Ag Use of a hard metal alloy for tools for machining long-chipping materials
DE973807C (en) * 1942-04-19 1960-06-09 Beteiligungs & Patentverw Gmbh Process for the production of hard and wear-resistant utensils
DE920100C (en) * 1948-08-09 1954-11-11 Boehler & Co Ag Geb Use of hard metals for the production of stone working tools, in particular deep drilling tools
DE3211047A1 (en) * 1981-03-27 1982-11-25 Kennametal Inc., 15650 Latrobe, Pa. PREFERRED BONDED, CEMENTED CARBIDE BODY AND METHOD FOR THE PRODUCTION THEREOF
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
DE9402109U1 (en) * 1994-02-09 1994-03-31 Maartens Kleinmetaal B.V., Haarlem Rotary cutting tool

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