DE10251404A1 - Hard composite material for machine tool cutting tips, comprises body with multilayer coating comprising multi-phase- and single-phase layers of specified oxides - Google Patents
Hard composite material for machine tool cutting tips, comprises body with multilayer coating comprising multi-phase- and single-phase layers of specified oxides Download PDFInfo
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- DE10251404A1 DE10251404A1 DE10251404A DE10251404A DE10251404A1 DE 10251404 A1 DE10251404 A1 DE 10251404A1 DE 10251404 A DE10251404 A DE 10251404A DE 10251404 A DE10251404 A DE 10251404A DE 10251404 A1 DE10251404 A1 DE 10251404A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/042—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Chemical Vapour Deposition (AREA)
- Drilling Tools (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Materials For Medical Uses (AREA)
- Laminated Bodies (AREA)
- Glass Compositions (AREA)
Abstract
Description
Die Erfindung betrifft einen Verbundwerkstoff aus einem Grundkörper mit einer mehrlagigen Beschichtung. Solche Verbundkörper werden beispielsweise als Schneideinsätze für Zerspannungszwecke, nämlich zum Drehen, Fräsen oder Bohren eingesetzt. Die Grundkörper, auf denen die Beschichtung mittels eine physikalischen oder chemischen Aufdampfverfahrens (PVD oder CVD) aufgetragen wird, können aus Hartmetall, einem Cermet, aus Stahl oder einer Keramik bestehen.The invention relates to a composite material a basic body with a multi-layer coating. Such composite bodies will for example as cutting inserts for cutting purposes, namely for Turning, milling or drilling used. The basic bodies on which the coating is by means of a physical or chemical vapor deposition (PVD or CVD) can be applied made of hard metal, a cermet, steel or a ceramic.
Bereits in der
In der
Ein weiteres CVD-Verfahren zur Abscheidung
von Al2O3 und/oder
ZrO2 unter Verwendung von einem zusätzlichen
Reagenz, wie Schwefelwasserstoff, wird in der
Die
Die
Die
In der
Es ist Aufgabe der vorliegenden Erfindung, einen Verbundkörper anzugeben, der beim Zerspanungseinsatz höhere Schneidleistungen sowie längere Standzeiten liefert. Hohe Schneidleistungen sind insbesondere durch die gewünscht hohen Schnittgeschwindigkeiten als auch die Dicke des abgetragenen Spanes bestimmt. Wo es möglich ist, sollen solche Schneideinsätze im sogenannten trockenen Schnitt verwendet werden.It is an object of the present invention composite body to indicate the higher cutting performance as well as when cutting longer Downtimes. High cutting performance is particularly due to the desired high cutting speeds as well as the thickness of the removed Spanes determined. Wherever possible such cutting inserts be used in the so-called dry cut.
Diese Aufgabe wird durch ein Verbundwerkstoff nach Anspruch 1 gelöst. Weiterentwicklungen der Erfindung sind in den Unteransprüchen beschrieben.This task is accomplished through a composite material solved according to claim 1. Further developments of the invention are described in the subclaims.
Der Grundgedanke der vorliegenden Erfindung besteht darin, auf einem Grundkörper mindestens eine mehrphasige Schicht aus den Oxiden des Aluminiums, des Zirkoniums und/oder des Hafniums und des Titans (als dreiphasige Schicht) und eine einphasige Schicht aus Al2O3, ZrO2 oder HfO2 zu verwenden. In der Beschichtung liegt somit mindestens eine mehrphasige Oxid-Schicht sowie mindestens eine einphasige Oxid-Schicht vor. Die mehrphasige Schicht kann neben den genannten drei Oxid-Bestandteilen zusätzlich noch MgO und die einphasige Schicht zusätzlich Titanoxid-Anteile < 1 % enthalten. Nach einer weiteren Ausgestaltung der Erfindung liegen jedoch mindestens zwei, vorzugsweise mindestens drei Lagen vor, von denen jede aus der genannten mehrphasigen Schicht aus Oxides des Al, Zr, Ti und/oder Al, Hf, Ti und/oder Al, Zr, Ti, Mg und/oder Al, Hf, Ti, Mg und aus einer einphasigen Oxid-Schicht aus Hf, Zr oder Al besteht. Vorzugsweise liegen mindestens drei dreiphasige oder vierphasige Oxid-Schichten vor, zwischen denen jeweils eine einphasige Oxid-Schicht angeordnet ist und wobei die einphasige Oxid-Schicht auch die äußere Deckschicht bildet. Diese Schichten weisen ein feinkörniges Gefüge und eine gleichmäßige Phasenverteilung auf und besitzen eine hohe Wärmeisolation.The basic idea of the present invention is to have on a base body at least one multi-phase layer made from the oxides of aluminum, zirconium and / or hafnium and titanium (as a three-phase layer) and a single-phase layer made from Al 2 O 3 , ZrO 2 or HfO 2 to use. The coating thus has at least one multiphase oxide layer and at least one single-phase oxide layer. In addition to the three oxide components mentioned, the multiphase layer can additionally contain MgO and the single-phase layer additionally contain titanium oxide components <1%. According to a further embodiment of the invention, however, there are at least two, preferably at least three, layers, each of which consists of the multiphase layer of oxides of Al, Zr, Ti and / or Al, Hf, Ti and / or Al, Zr, Ti, Mg and / or Al, Hf, Ti, Mg and consists of a single-phase oxide layer made of Hf, Zr or Al. Preferably there are at least three three-phase or four-phase oxide layers, between each of which a single-phase oxide layer is arranged and the single-phase oxide layer also forms the outer cover layer. These layers have a fine-grained structure and an even phase distribution and have high thermal insulation.
Der Grundkörper kann auch einem Hartmetall, einem Cermet aus Stahl oder einem keramischen Werkstoff bestehen.The base body can also be a hard metal, a cermet made of steel or a ceramic material.
Zwischen dem Substrat-Körper und einer ersten Oxid-Schicht, die vorzugsweise eine mehrphasige Oxid-Schicht ist, ist mindestens eine Schicht aus einem Carbonitrid des Titans, Hafniums oder Zirkoniums angeordnet. Diese Deckschicht besitzt eine Dicke zwischen 1 bis 15μm, insbesondere von 3 bis 8μm.Between the substrate body and a first oxide layer, which is preferably a multiphase oxide layer is at least one layer of a carbonitride of titanium, Hafnium or zirconium arranged. This cover layer has a thickness between 1 to 15μm, in particular from 3 to 8 μm.
Nach einer weiteren Ausgestaltung der Erfindung ist es jedoch ebenso möglich, zwischen der mehrphasigen Oxid-Schicht und der einphasigen Oxid-Schicht, vorzugsweise, nämlich bei einer mehrlagigen Schichtfolge einer mehrphasigen Oxid-Schicht und einer einphasigen Oxid-Schicht, zwischen jeder der genannten Schichten eine oder mehrere Zwischenschichten aus Titan-, Hafnium- oder Zirkoncarbonitrid anzuordnen. Diese Zwischenschichten haben vorzugsweise eine Dicke zwischen 0,2 bis 3μm, insbesondere von 2μm.According to a further embodiment the invention, however, it is also possible to switch between the multi-phase Oxide layer and the single-phase oxide layer, preferably, namely at a multi-layer sequence of layers of a multi-phase oxide layer and a single-phase oxide layer between each of the layers mentioned one or more intermediate layers made of titanium, hafnium or zirconium carbonitride to arrange. These intermediate layers preferably have a thickness between 0.2 to 3μm, especially 2μm.
Die Gesamtdicke aller mehrphasigen Oxid-Schichten und aller einphasigen Oxid-Schichten liegt bevorzugt zwischen 6 und 20μm, insbesondere bei 10μm. Die Dicke einer einzelnen mehrphasigen Oxid-Schicht beträgt 2 bis 6μm, vorzugsweise 4μm und/oder die Dicke einer einzelnen einphasigen Oxid-Schicht 1 bis 5μm, vorzugsweise 3μm.The total thickness of all multiphase oxide layers and all single-phase oxide layers is preferably between 6 and 20 μm, especially at 10μm. The thickness of a single multiphase oxide layer is 2 to 6μm, preferably 4μm and / or the thickness of a single single-phase oxide layer 1 to 5 microns, preferably 3 .mu.m.
Die mehrlagige Beschichtung wird
nach einem CVD-Vertahren hergestellt, wie es prinzipiell aus der
Nach einer weiteren Ausführungsform der Erfindung kann zur Beseitigung bestehender Zugspannungen oder zur Erhöhung von Druckspannungen der Verbundkörper einer abschließenden Strahlmittelbehandlung ausgesetzt worden sein, wobei vorzugsweise das Strahlmittel aus einem Hartmetallgranulat besteht, das zumindest im wesentlichen eine rundliche Korngestalt und einen maximalen Durchmesser von 150μm, weiterhin vorzugsweise von maximal 100μm aufweist.According to a further embodiment the invention can be used to eliminate existing tensile stresses or to increase of compressive stresses of the composite body a final one Have been subjected to blasting treatment, preferably the abrasive consists of a hard metal granulate, at least essentially a rounded grain shape and a maximum diameter from 150μm, furthermore preferably has a maximum of 100 μm.
Weitere Vorteile der Erfindung werden anhand eines Ausführungsbeispieles beschrieben. Es zeigenOther advantages of the invention will be based on an embodiment described. Show it
Untersuchungsobjekt war in allen
drei Fällen ein
Schneideinsatz des Typs CNMG120412-5. In allen drei Fällen bestand
der Substratkörper
aus einem Hartme tallwerkstoff (THM), der jedoch unterschiedlich
beschichtet war. In einer ersten Versuchsreihe ist ein Werkstück aus Grauguss
mit einer Schneidgeschwindigkeit von 450 m/min mit einer Schnitttiefe von
2,5 mm und einem Vorschub von 0,315 mm/Umdrehung bearbeitet worden.
Der erste Schneidkörper bestand
aus einem Hartmetallgrundkörper,
der mit einer zweilagigen Schicht aus TiCN und Al2O3 (als Außenschicht) beschichtet war.
Die erreichte Standzeit lag unter 2 Min. Eine deutlich verbesserte
Standzeit ergab sich bei einer zweilagigen Schicht, bei der auf einer
TiCN-Deckschicht eine dreiphasige Oxid-Schicht gemäß
Eine nochmalige deutliche Standzeitverbesserung konnte jedoch mit einem Schneideinsatz erreicht werden, der eine substratkörpernahe TiCN-Schicht sowie eine sechslagige Außenschicht besaß, die aus jeweils drei Einzellagen aus einer dreiphasigen Oxid-Schicht und einer einphasigen ZrO2-Schicht bestanden.However, a further significant improvement in tool life could be achieved with a cutting insert that had a TiCN layer close to the substrate body and a six-layer outer layer, which consisted of three individual layers each of a three-phase oxide layer and a single-phase ZrO 2 layer.
In einem zweiten Versuch ist ein Graugusswerkstück mit extrem rauher Oberfläche durch Drehen behandelt worden, wobei im Vergleich zu dem voran geschilderten Versuch lediglich die Schneidgeschwindigkeit auf 200 m/min gesenkt worden ist. Aufgrund dieser Schnittgeschwindigkeiten ergaben sich Standzeiten von 6 Min für Schneideinsätze mit einer TiCN-Al2O3-Beschichtung, von ca. 7. Min für Schneideinsätze mit einer TiCN-A12O3/ZrO2/TiOx Beschichtung und eine Standzeit von 9 Min für einen Schneideinsatz mit der erfindungsgemäßen Beschichtung, bei der im Unterschied zur vorbeschriebenen Version jedoch ein dreifacher Wechsel aus einer dreiphasigen Oxid-Schicht aus Al2O3/HfO/TiOx und der einphasigen Oxid-Schicht aus HfO2 vorhanden war.In a second experiment, a gray cast iron workpiece with an extremely rough surface was treated by turning, whereby in comparison to the experiment described above, only the cutting speed was reduced to 200 m / min. These cutting speeds resulted in a tool life of 6 minutes for cutting inserts with a TiCN-Al 2 O 3 coating, approximately 7 minutes for cutting inserts with a TiCN-A1 2 O 3 / ZrO 2 / TiO x coating and a tool life of 9 Min for a cutting insert with the coating according to the invention, in which, in contrast to the version described above, however, there was a triple change from a three-phase oxide layer made of Al 2 O 3 / HfO / TiO x and the single-phase oxide layer made of HfO 2 .
Die vorstehend behandelten Schneidversuche sind im sogenannten trockenen Schnitt durchgeführt worden.The cutting tests discussed above have been carried out in the so-called dry cut.
Wie
Claims (9)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251404A DE10251404A1 (en) | 2002-10-07 | 2002-11-05 | Hard composite material for machine tool cutting tips, comprises body with multilayer coating comprising multi-phase- and single-phase layers of specified oxides |
US10/530,718 US7326461B2 (en) | 2002-10-07 | 2003-09-26 | Composite material |
DE50313222T DE50313222D1 (en) | 2002-10-07 | 2003-09-26 | COMPOSITE |
EP03757686A EP1549781B1 (en) | 2002-10-07 | 2003-09-26 | Composite material |
PCT/DE2003/003228 WO2004033751A1 (en) | 2002-10-07 | 2003-09-26 | Composite material |
AT03757686T ATE486155T1 (en) | 2002-10-07 | 2003-09-26 | COMPOSITE MATERIAL |
AU2003273745A AU2003273745A1 (en) | 2002-10-07 | 2003-09-26 | Composite material |
JP2004542180A JP4761291B2 (en) | 2002-10-07 | 2003-09-26 | Wear-resistant composite ceramic coating for cutting tools |
CA2501085A CA2501085C (en) | 2002-10-07 | 2003-09-26 | Composite material |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10246635 | 2002-10-07 | ||
DE10246635.1 | 2002-10-07 | ||
DE10251404A DE10251404A1 (en) | 2002-10-07 | 2002-11-05 | Hard composite material for machine tool cutting tips, comprises body with multilayer coating comprising multi-phase- and single-phase layers of specified oxides |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10251404A1 true DE10251404A1 (en) | 2004-04-15 |
Family
ID=32010313
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10251404A Withdrawn DE10251404A1 (en) | 2002-10-07 | 2002-11-05 | Hard composite material for machine tool cutting tips, comprises body with multilayer coating comprising multi-phase- and single-phase layers of specified oxides |
DE50313222T Expired - Lifetime DE50313222D1 (en) | 2002-10-07 | 2003-09-26 | COMPOSITE |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50313222T Expired - Lifetime DE50313222D1 (en) | 2002-10-07 | 2003-09-26 | COMPOSITE |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4761291B2 (en) |
AT (1) | ATE486155T1 (en) |
DE (2) | DE10251404A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7968182B2 (en) | 2005-04-18 | 2011-06-28 | Sandvik Intellectual Property Ab | Coated insert |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4968674B2 (en) * | 2007-03-19 | 2012-07-04 | 国立大学法人東京工業大学 | Surface-coated cutting tool with excellent chipping resistance and wear resistance with excellent hard coating layer in high-speed cutting and method for manufacturing the same |
JP5029825B2 (en) * | 2007-09-28 | 2012-09-19 | 三菱マテリアル株式会社 | Surface coated cutting tool whose hard coating layer exhibits excellent chipping resistance and wear resistance in high speed heavy cutting |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2253745A1 (en) * | 1971-11-12 | 1973-05-17 | Sandvik Ab | CARBIDE BODY |
JPS5985860A (en) * | 1982-11-09 | 1984-05-17 | Sumitomo Electric Ind Ltd | Parts of cutting tool |
EP0162656B1 (en) * | 1984-05-14 | 1990-10-17 | Sumitomo Electric Industries Limited | Multilayer coated cemented carbides |
EP0275975B1 (en) * | 1987-01-20 | 1994-12-07 | Valenite Inc. | Ultrathin laminated oxide coatings |
DE19518927A1 (en) * | 1994-05-31 | 1996-01-25 | Valenite Inc | Wear-resistant composite ceramic coating for sintered carbide or ceramic cutting tool inserts |
EP0643152B1 (en) * | 1993-09-09 | 1998-07-15 | Plansee Tizit Gesellschaft M.B.H. | Cutting tool |
WO2000017416A1 (en) * | 1998-09-24 | 2000-03-30 | Widia Gmbh | Composite material coating and a method for the production thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1328580C (en) * | 1987-01-20 | 1994-04-19 | Gte Valenite Corporation | Composite coatings |
JPH01157419A (en) * | 1987-02-27 | 1989-06-20 | Sumitomo Metal Mining Co Ltd | Zirconia film and its production |
JP3424263B2 (en) * | 1993-05-27 | 2003-07-07 | 住友電気工業株式会社 | Coated hard alloy members |
-
2002
- 2002-11-05 DE DE10251404A patent/DE10251404A1/en not_active Withdrawn
-
2003
- 2003-09-26 AT AT03757686T patent/ATE486155T1/en active
- 2003-09-26 JP JP2004542180A patent/JP4761291B2/en not_active Expired - Fee Related
- 2003-09-26 DE DE50313222T patent/DE50313222D1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2253745A1 (en) * | 1971-11-12 | 1973-05-17 | Sandvik Ab | CARBIDE BODY |
JPS5985860A (en) * | 1982-11-09 | 1984-05-17 | Sumitomo Electric Ind Ltd | Parts of cutting tool |
EP0162656B1 (en) * | 1984-05-14 | 1990-10-17 | Sumitomo Electric Industries Limited | Multilayer coated cemented carbides |
EP0275975B1 (en) * | 1987-01-20 | 1994-12-07 | Valenite Inc. | Ultrathin laminated oxide coatings |
EP0643152B1 (en) * | 1993-09-09 | 1998-07-15 | Plansee Tizit Gesellschaft M.B.H. | Cutting tool |
DE19518927A1 (en) * | 1994-05-31 | 1996-01-25 | Valenite Inc | Wear-resistant composite ceramic coating for sintered carbide or ceramic cutting tool inserts |
WO2000017416A1 (en) * | 1998-09-24 | 2000-03-30 | Widia Gmbh | Composite material coating and a method for the production thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7968182B2 (en) | 2005-04-18 | 2011-06-28 | Sandvik Intellectual Property Ab | Coated insert |
Also Published As
Publication number | Publication date |
---|---|
DE50313222D1 (en) | 2010-12-09 |
JP4761291B2 (en) | 2011-08-31 |
ATE486155T1 (en) | 2010-11-15 |
JP2006502015A (en) | 2006-01-19 |
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Effective date: 20130601 |