DE1219693B - Use of a metal powder mixture based on high-speed steel as a material for cutting tools manufactured by powder metallurgy - Google Patents
Use of a metal powder mixture based on high-speed steel as a material for cutting tools manufactured by powder metallurgyInfo
- Publication number
- DE1219693B DE1219693B DEB64939A DEB0064939A DE1219693B DE 1219693 B DE1219693 B DE 1219693B DE B64939 A DEB64939 A DE B64939A DE B0064939 A DEB0064939 A DE B0064939A DE 1219693 B DE1219693 B DE 1219693B
- Authority
- DE
- Germany
- Prior art keywords
- metal powder
- speed steel
- powder mixture
- carbide
- vanadium
- 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
Links
- 239000000843 powder Substances 0.000 title claims description 44
- 239000000203 mixture Substances 0.000 title claims description 28
- 229910000997 High-speed steel Inorganic materials 0.000 title claims description 24
- 229910052751 metal Inorganic materials 0.000 title claims description 20
- 239000002184 metal Substances 0.000 title claims description 20
- 238000005520 cutting process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 title claims description 9
- 238000004663 powder metallurgy Methods 0.000 title claims description 8
- 229910052720 vanadium Inorganic materials 0.000 claims description 17
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 16
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 16
- 229910052721 tungsten Inorganic materials 0.000 claims description 16
- 239000010937 tungsten Substances 0.000 claims description 16
- 229910052804 chromium Inorganic materials 0.000 claims description 15
- 239000011651 chromium Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 239000011733 molybdenum Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 150000001247 metal acetylides Chemical class 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 4
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052580 B4C Inorganic materials 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 claims description 2
- 229910039444 MoC Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007792 addition Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000988175 Coenonympha pamphilus Species 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910026551 ZrC Inorganic materials 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys 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
- C22C29/067—Alloys 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 comprising a particular metallic binder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. α.:Int. α .:
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:Number:
File number:
Registration date:
Display day:
C22cC22c
Deutsche KL: 40 b-39/52 German KL: 40 b -39/52
1 219 693
B 64939 VI a/40 b
27. November 1961
23.Juni 19661,219,693
B 64939 VI a / 40 b
November 27, 1961
June 23, 1966
Die Erfindung bezieht sich auf die Verwendung einer Metallpulvermischung auf Schnelldrehstahlbasis als Werkstoff für auf pulvermetallurgischem Wege hergestellte Schneidwerkzeuge.The invention relates to the use of a high-speed steel-based metal powder mixture as a material for cutting tools manufactured by powder metallurgy.
Die Herstellung von Schneidwerkzeugen aus üblichen Schnelldrehstählen ist meistens mit hohen Ausschußzahlen an fehlerhaften Vorblöcken, einem umfangreichen und schwierigen verformungstechnischen Bearbeitungsaufwand zur Homogenisierung der Gußstruktur und mit Materialverlusten durch materialabtragende Herstellungsmethoden bei kompliziert gestalteten Schneidwerkzeugen verbunden.The production of cutting tools from common high-speed steels is mostly with high Reject numbers of defective blooms, an extensive and difficult deformation-technical Machining effort to homogenize the cast structure and with material losses Material-removing manufacturing methods associated with complicated cutting tools.
Bei Anwendung metallkeramischer Verfahren mit vorlegierten Pulvern für die Herstellung solcher Gegenstände kann der Metallverlust herabgesetzt werden, wenn es sich um Formen mit nur geringer Nachbearbeitung handelt. Wenn jedoch für das Pulver eine Zusammensetzung gewählt wird, die der eines herkömmlichen legierten Schnelldrehstahls entspricht, ist das auf pulvermetallurgischem Wege hergestellte Erzeugnis einem Schmiedeprodukt ähnlich. Das gesinterte Material ist aber durch völliges Fehlen von Karbidausscheidungen gekennzeichnet.When using metal-ceramic processes with pre-alloyed powders for the production of such Objects can be reduced if they are shapes with only lower levels of metal loss Post-processing is about. However, if a composition is chosen for the powder that corresponds to the corresponds to a conventional alloyed high-speed steel, it is produced by powder metallurgy Product similar to a forged product. The sintered material, however, is completely absent characterized by carbide precipitates.
Aus der britischen Patentschrift 778 268 ist ein Metallpulver für die Herstellung metallkeramischer Gegenstände bekannt, das aus einer Mischung eines Werkzeugstahlpulvers mit 20 bis 90 Volumprozent Titankarbidpulver und einer Eisenlegierung mit wenigstens 60% Fe als Rest besteht. Das Titankarbid kann teilweise ersetzt werden durch ein oder mehrere der folgenden Karbide: bis zu 35% Vanadinkarbid, bis zu 35% Zirkoniumkarbid, bis zu 20% Niobkarbid und bis zu 10% Tantalkarbid.British Patent 778 268 discloses a metal powder for the manufacture of metal-ceramic mixers Articles known that consist of a mixture of a tool steel powder with 20 to 90 percent by volume Titanium carbide powder and an iron alloy with at least 60% Fe as the remainder. The titanium carbide can be partially replaced by one or more of the following carbides: up to 35% vanadium carbide, up to 35% zirconium carbide, up to 20% niobium carbide and up to 10% tantalum carbide.
Der Erfindung liegt die Aufgabe zugrunde, eine Metallpulvermischung auf Schnelldrehstahlbasis zu entwickeln, die eine wirtschaftliche Herstellung von Schneidwerkzeugen auf pulvermetallurgischem Wege ermöglicht.The invention is based on the object of a metal powder mixture based on high-speed steel develop the economical production of cutting tools by powder metallurgy enables.
Die Erfindung besteht somit in der Verwendung einer Metallpulvermischung, bestehend aus 0,1 bis 50 Gewichtsprozent eines oder mehrerer der pulverförmigen Karbide von Vanadin, Molybdän, Chrom und Titan, Rest pulverförmiger Schnelldrehstahl mit bis zu 2% Kohlenstoff, bis zu 5% Chrom, bis zu 10% Vanadin und bis zu 22% Wolfram, als Werkstoff für auf pulvermetallurgischem Wege hergestellte Schneidwerkzeuge.The invention thus consists in the use of a metal powder mixture consisting of 0.1 to 50 percent by weight of one or more of the powdered carbides of vanadium, molybdenum, chromium and titanium, the remainder being powdery high-speed steel with up to 2% carbon, up to 5% chromium, up to 10% vanadium and up to 22% tungsten, as a material for powder metallurgy Cutting tools.
Dabei kann der pulverförmige Schnelldrehstahl aus 0,76 bis 1,2% Kohlenstoff, 4 bis 4,75% Chrom, 1,4 bis 3,75% Vanadin, 6 bis 22% Wolfram, bis zu 5,5% Molybdän und bis zu 17% Kobalt bestehen und 70 bis 99^k der Mischung bilden, die als Werk-The powdery high-speed steel can consist of 0.76 to 1.2% carbon, 4 to 4.75% chromium, 1.4 to 3.75% vanadium, 6 to 22% tungsten, up to 5.5% molybdenum and up to 17% cobalt and form 70 to 99 ^ k of the mixture, which is
Verwendung einer Metallpulvermischung auf
Schnelldrehstahlbasis als Werkstoff für auf
pulvermetallurgischem Wege hergestellte
SchneidwerkzeugeUse of a metal powder mixture
High-speed steel base as a material for on
manufactured by powder metallurgy
Cutting tools
Anmelder:Applicant:
The Birmingham Small Arms Company Limited, Small Heath, Birmingham (Großbritannien)The Birmingham Small Arms Company Limited, Small Heath, Birmingham (Great Britain)
Vertreter:Representative:
Dr.-Ing. A. van der Werth, Patentanwalt,Dr.-Ing. A. van der Werth, patent attorney,
Hamburg-Harburg 1, Wilstorfer Str. 32Hamburg-Harburg 1, Wilstorfer Str. 32
Als Erfinder benannt:Named as inventor:
John Francis Watkinson,John Francis Watkinson,
Raymond Leonard Sands,Raymond Leonard Sands,
Solihull, Warwickshire (Großbritannien)Solihull, Warwickshire (UK)
stoff für auf pulvermetallurgischem Wege hergestellte Schneidwerkzeuge verwendet wird.material is used for cutting tools manufactured by powder metallurgy.
Auch kann die erfindungsgemäß zu verwendende Metallpulvermischung zusätzlich bis zu 5% mindestens eines der Oxyde von Aluminium und' Titan in Pulverform enthalten.The metal powder mixture to be used according to the invention can also add up to at least 5% one of the oxides of aluminum and 'titanium contained in powder form.
Die Metallpulvermischung für den erfindungsgemäßen Verwendungszweck kann bis zu 10% eines Doppelkarbids von Eisen und Wolfram, extrahiert aus Schnelldrehstahl, in Pulverform enthalten.The metal powder mixture for use in the present invention can be up to 10% of one Double carbide of iron and tungsten, extracted from high-speed steel, contained in powder form.
Selbstverständlich können die erfindungsgemäßen Metallpulvermischungen auch noch weitere in solchen Mischungen übliche Bestandteile enthalten, z. B.Of course, the metal powder mixtures according to the invention can also contain other mixtures of these Mixtures contain common ingredients, e.g. B.
Kobalt, Bor, Borkarbid, Bornitrid, Niobkarbid, um die Eigenschaften der Endprodukte durch solche Zusätze in an sich bekannter Weise zu beeinflussen.Cobalt, boron, boron carbide, boron nitride, niobium carbide to enhance the properties of the end products through such To influence additives in a known manner.
Die Schnelldrehstahlpulverbasis kann auf beliebige Weise erhalten sein. Schnelldrehstähle mit einem Gehalt an Wolfram und/oder Molybdän, Chrom und Vanadin mit oder ohne Kobalt und/oder Bor haben sich jedoch als besonders geeignet herausgestellt, und zwar in Anteilen bis zu 22% Wolfram, bis zu 10% Molybdän, bis zu 5% Chrom, bis zu 10% Vanadin, bis zu 15% Kobalt, bis zu 3% Bor und bis zu 2% Kohlenstoff. Normalerweise ist eine Legie-The high speed steel powder base can be obtained in any way. High speed steels with one Contain tungsten and / or molybdenum, chromium and vanadium with or without cobalt and / or boron however, it has been found to be particularly suitable, namely in proportions of up to 22% tungsten, up to 10% molybdenum, up to 5% chromium, up to 10% vanadium, up to 15% cobalt, up to 3% boron and up 2% carbon. Usually an alloy
609 580/338609 580/338
rung mit mehr als etwa 5% Vanadin.und eine. Legierung mit mehr als etwa 0,5% Bor nicht schmiedbar. tion with more than about 5% vanadium. and one. alloy not malleable with more than about 0.5% boron.
Die erfindungsgemäß hergestellten Gegenstände zeichnen sich durch Warm- und Kalthärte, begrenztes Kornwachstum und insbesondere durch gute Kerbschlagzähigkeit aus. Die Kalthärte wird durch den Zusatz eines oder mehrerer Karbide von Vanadium, Molybdän, Chrom und Titan und/oder Borkarbid und/oder Bornitrid begünstigt.-Die Wärmhärte kann ebenfalls durch die Kalthärtezusätze und in bestimmten Fällen durch Aluminiumoxyd- und/ oder Titanoxydzusätze erhöht werden. Die Doppelkarbidzusätze bewirken eine Beschränkimg des" Kornwachstums. Auf die Zähigkeit des Materials wirken sich Titanzusätze von bis zu 5% günstig aus.The objects produced according to the invention are characterized by hot and cold hardness, limited Grain growth and especially good notched impact strength. The cold hardness is through the addition of one or more carbides of vanadium, Molybdenum, chromium and titanium and / or boron carbide and / or boron nitride favor the heat hardness can also be achieved by the cold hardening additives and in certain cases by aluminum oxide and / or titanium oxide additions are increased. The double carbide additives have the effect of restricting the " Grain growth. Titanium additives of up to 5% have a beneficial effect on the toughness of the material.
Das Schnelldrehstahlbasispulver. hat eine bei der Fertigung von Sintergegenständen übliche Größe.The high-speed steel base powder. has a size that is customary in the manufacture of sintered objects.
Die ■ Pülverzusätze besitzen vorzugsweise eine* Teilchengröße von 1 bis 10 Mikron.The powder additives preferably have a particle size from 1 to 10 microns.
Die Herstellung von Schneidwerkzeugen erfolgt in bekannter Weise durch sorgfältiges Vermischen des Basispulvers und der Zusätze sowie durch Pressen und Sintern dieser" Mischung zu der gewünschten Form.Cutting tools are manufactured in a known manner by carefully mixing the Base powder and the additives as well as by pressing and sintering this "mixture to the desired Shape.
Es können auch zunächst Barren hergestellt werden, die durch anschließendes Schmieden oder Pressen zu Schneidwerkzeugen weiterverarbeitet werden. Dabei bleiben die charakteristischen Eigenschaften des gesinterten Schnelldrehstahls, wie feine Korngröße und einheitliche Struktur, erhalten.Ingots can also be produced first by forging or pressing can be further processed into cutting tools. The characteristic properties remain of the sintered high-speed steel, such as fine grain size and uniform structure.
Schnelldrehstähle, die als Basispulver mit den genannten Zusätzen für die Herstellung von Gegenständen mit den verbesserten, vorstehend erwähnten Eigenschaften benutzt wurden, sind nachstehend zusammengefaßt. " : - 'High speed steels which have been used as base powder with the additives mentioned for the manufacture of articles with the improved properties mentioned above are summarized below. " : - '
Kohlenstoff carbon
Chrom '. Chrome '.
Molybdän molybdenum
Vanadin Vanadium
Wolfram tungsten
Kobalt cobalt
Eisen sowie Desoxydierungsmittel und Verunreinigungen Iron as well as deoxidizers and impurities
0,830.83
4,04.0
5,05.0
1,91.9
6,56.5
Restrest
3535
Ein Schnelldrehstahlbasispulver mit 0,76% Kohlenstoff, 4,25% Chrom, 1,4% Vanadin und 18% Wolfram, (gemäß F in obiger Tabelle), das etwa 74% des. endgültigen Pulvers darstellt, enthält einen Zusatz von 10% Molybdänkarbid, 10% Titankarbid, 1% Aluminiumoxyd und 5% Doppelkarbide. A high-speed steel base powder with 0.76% carbon, 4.25% chromium, 1.4% vanadium and 18% Tungsten, (according to F in the table above), which represents about 74% of the final powder, contains one Addition of 10% molybdenum carbide, 10% titanium carbide, 1% aluminum oxide and 5% double carbides.
4545
Ein Schnelldrehstahlbasispulver mit 0,83% Kohlenstoff, 4% Chrom, 5% Molybdän, 1,9% Vanadin und 6,5% Wolfram (gemäß G in obiger Tabelle), das etwa 95% des endgültigen Pulvers darstellt, enthält einen Zusatz von 5 % Vanadinkarbid. -50A high-speed steel base powder with 0.83% carbon, 4% chromium, 5% molybdenum, 1.9% vanadium and 6.5% tungsten (according to G in the table above) which is about 95% of the final powder an addition of 5% vanadium carbide. -50
Ein Schnelldrehstahlpulver mit 0,76% Kohlenstoff, 4,25% Chrom, 1,4% Vanadin, 18% Wolfram (gemäß F in obiger Tabelle), das 99% des endgültigen Pulvers darstellt, enthält einen Zusatz von 1% -Titankarbid, welches die Kerbschlagfestigkeit verbessert.A high speed steel powder with 0.76% carbon, 4.25% chromium, 1.4% vanadium, 18% tungsten (according to F in the table above), which represents 99% of the final powder, contains an addition of 1% titanium carbide, which improves the notched impact strength.
Ein Schnelldrehstahlpulver mit 0,76% Kohlenstoff, 4,25% Chrom, 1,4% Vanadin, 18,0% Wolfram (gemäß F in obiger Tabelle), das 90% des endgültigen Pulvers darstellt, enthält einen Zusatz von 10% Niobkarbid, welches in starkem Maße die Schneidleistung bei hohen Geschwindigkeiten verbessert. A high speed steel powder with 0.76% carbon, 4.25% chromium, 1.4% vanadium, 18.0% Tungsten (according to F in the table above), which represents 90% of the final powder, contains an additive of 10% niobium carbide, which greatly improves cutting performance at high speeds.
Claims (8)
Britische Patentschrift Nr. 778 268;
F. Rapatz, »Die Edelstahle«, 1951, 2. Auflage, Springer-Verlag, Berlin, S. 566.Considered publications:
British Patent No. 778,268;
F. Rapatz, "Die Edelstahle", 1951, 2nd edition, Springer-Verlag, Berlin, p. 566.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB64939A DE1219693B (en) | 1960-07-22 | 1961-11-27 | Use of a metal powder mixture based on high-speed steel as a material for cutting tools manufactured by powder metallurgy |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2554160A GB1004142A (en) | 1960-07-22 | 1960-07-22 | Improvements in or relating to metal powders and articles formed therefrom |
| DEB64939A DE1219693B (en) | 1960-07-22 | 1961-11-27 | Use of a metal powder mixture based on high-speed steel as a material for cutting tools manufactured by powder metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1219693B true DE1219693B (en) | 1966-06-23 |
Family
ID=25966094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB64939A Pending DE1219693B (en) | 1960-07-22 | 1961-11-27 | Use of a metal powder mixture based on high-speed steel as a material for cutting tools manufactured by powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1219693B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986004360A1 (en) * | 1985-01-16 | 1986-07-31 | Kloster Speedsteel Aktiebolag | Tool steel |
| DE102011000202A1 (en) * | 2011-01-18 | 2012-07-19 | Taiwan Powder Technologies Co., Ltd. | Martensitic stainless steel powder composition, comprises carbon, silicon, manganese, chromium, titanium and remainder of iron |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778268A (en) * | 1954-10-08 | 1957-07-03 | Sintercast Corp America | Improvements in and relating to titanium-containing ferrous alloys |
-
1961
- 1961-11-27 DE DEB64939A patent/DE1219693B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778268A (en) * | 1954-10-08 | 1957-07-03 | Sintercast Corp America | Improvements in and relating to titanium-containing ferrous alloys |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986004360A1 (en) * | 1985-01-16 | 1986-07-31 | Kloster Speedsteel Aktiebolag | Tool steel |
| DE102011000202A1 (en) * | 2011-01-18 | 2012-07-19 | Taiwan Powder Technologies Co., Ltd. | Martensitic stainless steel powder composition, comprises carbon, silicon, manganese, chromium, titanium and remainder of iron |
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