DE4331890A1 - Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material - Google Patents

Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material

Info

Publication number
DE4331890A1
DE4331890A1 DE19934331890 DE4331890A DE4331890A1 DE 4331890 A1 DE4331890 A1 DE 4331890A1 DE 19934331890 DE19934331890 DE 19934331890 DE 4331890 A DE4331890 A DE 4331890A DE 4331890 A1 DE4331890 A1 DE 4331890A1
Authority
DE
Germany
Prior art keywords
hard material
coating
metals
tial
substrates
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.)
Ceased
Application number
DE19934331890
Other languages
German (de)
Inventor
Wolf-Dieter Prof Dr Muenz
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.)
IHI Hauzer Techno Coating BV
Original Assignee
Hauzer Techno Coating Europe BV
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 Hauzer Techno Coating Europe BV filed Critical Hauzer Techno Coating Europe BV
Priority to DE19934331890 priority Critical patent/DE4331890A1/en
Priority to CH284794A priority patent/CH689097A5/en
Publication of DE4331890A1 publication Critical patent/DE4331890A1/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0641—Nitrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

A method is described for applying a coating of hard material to substrates, in which, in the application of TiAl nitride layers, between about 0.5 and 4 atom percent of one of the refractory metals (Nb, Ta or W) is mixed into the metals deposited.

Description

Die Erfindung betrifft ein Verfahren zum Aufbringen einer Hartstoffbeschichtung auf Substrate, insbesondere auf Schneidwerkzeuge aus Schnellarbeitsstahl, Hartmetall und der­ gleichen. Ferner ist die Erfindung auf Schneidwerkzeuge mit einer verbesserten Oberflächen-Hartstoffbeschichtung aus TiAl-Nitrid gerichtet.The invention relates to a method for applying a Hard material coating on substrates, especially on Cutting tools made of high-speed steel, hard metal and same. Furthermore, the invention applies to cutting tools an improved surface hard material coating TiAl nitride directed.

Es ist bekannt, die TiAl-Nitrid-Schichten mittels magnetfeld­ unterstützter Kathodenzerstäubung als Hartstoffbeschichtung auf verschiedene Substrate, insbesondere auch auf Schneid­ werkzeuge aus Schnellarbeitsstahl oder Hartmetall abzuschei­ den.It is known to use a magnetic field to coat the TiAl nitride supported cathode sputtering as hard material coating on different substrates, especially on cutting tools made of high-speed steel or hard metal the.

Ferner ist es bekannt, derartige Schichten mit Hilfe der kathodischen Bogenverdampfung auf die betreffenden Substrat­ arten abzuscheiden.It is also known to use layers of this type cathodic arc evaporation on the substrate in question to separate species.

Schließlich ist es aus der EP 0 306 612 B1 bekannt, TiAl- Nitrid-Schichten in einem kombinierten Verfahren abzuschei­ den, und zwar unter gleichzeitiger Durchführung einer magnet­ feldunterstützten Kathodenzerstäubung und einer kathodischen oder anodischen Bogenverdampfung. Zur Erzielung einer Ver­ besserung der Standzeit beschichteter Bohrer wird bei diesem bekannten Verfahren gefordert, daß wenigstens 5 Atomprozent des kondensierten Metalls aus der Bogenentladung stammen.Finally, it is known from EP 0 306 612 B1 that TiAl Deposition of nitride layers in a combined process the, while carrying out a magnet field-assisted sputtering and cathodic or anodic arc evaporation. To achieve a ver This improves the service life of coated drills known methods required that at least 5 atomic percent of the condensed metal originate from the arc discharge.

Eine verfahrenstechnische Verbesserung der zuletzt geschil­ derten Vorgehensweise bestünde darin, allein mit magnetfeld­ unterstützter Kathodenzerstäubung zu arbeiten, was dann mög­ lich ist, wenn anstatt "balanzierter" Magnetronkathoden soge­ nannte "unbalanzierte" Magnetronkathoden verwendet und demge­ mäß ein optimiertes Magnetronbeschichtungsverfahren einge­ setzt werden würde.A procedural improvement of the last schil Another approach would be to use a magnetic field alone supported cathode sputtering, which is then possible Lich if so-called instead of "balanced" magnetron cathodes called "unbalanced" magnetron cathodes used and demge according to an optimized magnetron coating process would be put.

Das durch die vorliegende Erfindung angestrebte Ziel wäre damit aber allein noch nicht erreichbar, denn die der Er­ findung zugrundeliegende Aufgabe besteht darin, eine Hart­ stoffbeschichtung zu schaffen, die zu einer im Vergleich mit bekannten TiAl-Nitrid-Beschichtungen wesentlichen Erhöhung der erreichbaren Schneidzeit, d. h. zu einer wesentlichen Verbesserung des Schneidverhaltens führt.The goal sought by the present invention would be but not yet attainable by that alone, because that of the Er  The underlying task is a hard to create fabric coating that compared to a known TiAl nitride coatings substantial increase the achievable cutting time, d. H. to an essential Improves cutting behavior.

Gelöst wird diese Aufgabe nach dem erfindungsgemäßen Verfah­ ren dadurch, daß beim Aufbringen von TiAl-Nitrid-Schichten den abgeschiedenen Metallen Titan (Ti) und Aluminium (Al) etwa zwischen 0,5 und 4 Atomprozent zumindest eines der re­ frektären Metalle Niob (Nb), Tantal (Ta) oder Wolfram (W) beigemischt wird.This problem is solved according to the inventive method ren in that when applying TiAl nitride layers the deposited metals titanium (Ti) and aluminum (Al) approximately between 0.5 and 4 atomic percent at least one of the right non-ferrous metals niobium (Nb), tantalum (Ta) or tungsten (W) is added.

Das durch diese definierte Beimischung eines der refrektären Metalle (Nb, Ta oder W) erzielte Ergebnis ist außerordent­ lich überraschend, da das Schneidverhalten beschichteter Schneidwerkzeuge derart verbessert wird, daß sich durchaus eine Verdoppelung der Stand- bzw. Schneidzeit erzielen läßt. Die definierte Beimischung der refrektären Metalle (Nb, Ta oder W) erfolgt mittels kathodischer Bogenentladung in einem kombinierten Beschichtungsprozeß, wobei die Metalle (Ti und Al) mittels unbalanzierten Magnetrons abgeschieden werden.The admixture defined by this one of the refectories Metals (Nb, Ta or W) result is exceptional Lich surprising, since the cutting behavior is coated Cutting tools is improved so that it can a doubling of the tool life or cutting time can be achieved. The defined admixture of the rectal metals (Nb, Ta or W) takes place by means of cathodic arc discharge in one combined coating process, the metals (Ti and Al) are deposited using unbalanced magnetrons.

Die durch die Erfindung erzielten vorteilhaften Resultate sind in Fig. 1 anhand eines Beispiels des Schneidverhaltens einer Wendeschneidplatte dargestellt, wobei als beigemisch­ tes Zusatzmaterial Niob verwendet wurde.The advantageous results achieved by the invention are shown in FIG. 1 using an example of the cutting behavior of an indexable insert, niobium being used as the admixed additional material.

Die Darstellung zeigt den Freiflächenverschleiß beim Drehen über der Schneidzeit, und es ist deutlich zu erkennen, daß im Vergleich zu einer bekannten TiAl-Nitrid-Schicht die er­ findungsgemäß erzeugte TiAl-Nb-Nitrid-Schicht nahezu eine Verdoppelung der Schneidzeit bei gleichem Freiflächenver­ schleiß erbringt.The illustration shows the free-space wear during turning over the cutting time, and it can be clearly seen that compared to a known TiAl nitride layer he TiAl-Nb nitride layer produced according to the invention almost one Doubling the cutting time with the same open area brings wear.

Claims (4)

1. Verfahren zum Aufbringen einer Hartstoffbeschichtung auf Substrate, insbesondere auf Schneidwerkzeuge aus Schnell­ arbeitsstahl, Hartmetall und dergleichen, dadurch gekennzeichnet, daß beim Aufbringen von TiAl-Nitrid-Schichten den abge­ schiedenen Metallen Titan (Ti) und Aluminium (Al) etwa zwischen 0,5 und 4 Atomprozent zumindest eines der re­ frektären Metalle Niob (Nb), Tantal (Ta) oder Wolfram (W) beigemischt wird.1. A method for applying a hard material coating on substrates, in particular on cutting tools made of high-speed steel, hard metal and the like, characterized in that when TiAl-nitride layers are applied, the various metals titanium (Ti) and aluminum (Al) approximately between 0, 5 and 4 atomic percent of at least one of the rectal metals niobium (Nb), tantalum (Ta) or tungsten (W) is added. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Beimischung des refrektären Metalls oder der re­ frektären Metalle mittels kathodischer Bogenentladung in einem kombinierten Beschichtungsprozeß erfolgt.2. The method according to claim 1, characterized, that the admixture of the rectal metal or the re fractal metals by cathodic arc discharge in a combined coating process. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Metalle Titan und Aluminium während des Be­ schichtungsprozesses mittels unbalanzierten Magnetrons abgeschieden werden.3. The method according to claim 1 or 2, characterized, that the metals titanium and aluminum during loading layering process using unbalanced magnetrons be deposited. 4. Schneidwerkzeug, insbesondere aus Schnellarbeitsstahl oder Hartmetall, mit einer Oberflächen-Hartstoffbeschich­ tung aus TiAl-Nitrid, dadurch gekennzeichnet, daß der TiAl-Nitrid-Schicht zumindest eines der refrektä­ ren Metalle (Nb, Ta und/oder W) in einem Anteil zwischen 0,5 und 4 At% beigemischt ist.4. Cutting tool, in particular made of high-speed steel or hard metal, with a surface hard material coating TiAl nitride, characterized, that the TiAl nitride layer at least one of the refrektä ren metals (Nb, Ta and / or W) in a proportion between 0.5 and 4 at% is admixed.
DE19934331890 1993-09-20 1993-09-20 Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material Ceased DE4331890A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19934331890 DE4331890A1 (en) 1993-09-20 1993-09-20 Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material
CH284794A CH689097A5 (en) 1993-09-20 1994-09-19 Method of applying a hard coating on substrates, and with a hard material coating provided cutting tools.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934331890 DE4331890A1 (en) 1993-09-20 1993-09-20 Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material

Publications (1)

Publication Number Publication Date
DE4331890A1 true DE4331890A1 (en) 1995-03-23

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DE19934331890 Ceased DE4331890A1 (en) 1993-09-20 1993-09-20 Method of applying a coating of hard material to substrates and also cutting tools provided with a coating of hard material

Country Status (2)

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DE (1) DE4331890A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405477A1 (en) * 1994-02-21 1995-08-24 Hauzer Holding PVD process for the deposition of multi-component hard material layers
DE19517120A1 (en) * 1994-05-13 1995-11-16 Kobe Steel Ltd Coated part used as e.g. cutting tool
DE102008013964A1 (en) * 2008-03-12 2009-09-17 Kennametal Inc. Hard material coated body
WO2011138331A2 (en) 2010-05-04 2011-11-10 Walter Ag Pvd hybrid method for depositing mixed crystal layers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405477A1 (en) * 1994-02-21 1995-08-24 Hauzer Holding PVD process for the deposition of multi-component hard material layers
DE19517120A1 (en) * 1994-05-13 1995-11-16 Kobe Steel Ltd Coated part used as e.g. cutting tool
US5656383A (en) * 1994-05-13 1997-08-12 Kabushiki Kaisha Kobe Seiko Sho Coated member having excellent hardness and, adhesive properties
DE19517120C2 (en) * 1994-05-13 1998-07-02 Kobe Steel Ltd Coated part with excellent hardness and adhesion, its use and manufacturing process
DE102008013964A1 (en) * 2008-03-12 2009-09-17 Kennametal Inc. Hard material coated body
WO2011138331A2 (en) 2010-05-04 2011-11-10 Walter Ag Pvd hybrid method for depositing mixed crystal layers
DE102010028558A1 (en) * 2010-05-04 2011-11-10 Walter Ag PVD hybrid process for the deposition of mixed crystal layers
US8980446B2 (en) 2010-05-04 2015-03-17 Walter Ag PVD hybrid method for depositing mixed crystal layers

Also Published As

Publication number Publication date
CH689097A5 (en) 1998-09-30

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