WO2009070109A1 - Inserts de carbure cémentés revêtus pour fraisage d'engrenage dans des pièces coulées en acier à faible teneur en carbone - Google Patents

Inserts de carbure cémentés revêtus pour fraisage d'engrenage dans des pièces coulées en acier à faible teneur en carbone Download PDF

Info

Publication number
WO2009070109A1
WO2009070109A1 PCT/SE2008/051356 SE2008051356W WO2009070109A1 WO 2009070109 A1 WO2009070109 A1 WO 2009070109A1 SE 2008051356 W SE2008051356 W SE 2008051356W WO 2009070109 A1 WO2009070109 A1 WO 2009070109A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
thickness
cemented carbide
sublayer
layer
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
PCT/SE2008/051356
Other languages
English (en)
Inventor
Kenneth Westergren
Kenneth Lundberg
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.)
Sandvik Intellectual Property AB
Original Assignee
Sandvik Intellectual Property AB
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 Sandvik Intellectual Property AB filed Critical Sandvik Intellectual Property AB
Publication of WO2009070109A1 publication Critical patent/WO2009070109A1/fr
Anticipated expiration legal-status Critical
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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • 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

Definitions

  • the present invention relates to a PVD-coated cutting tool insert particularly useful for roughing and finishing milling of gears in cast low carbon steel alloys parts.
  • Milling of gears is generally performed with a package of several disk shaped cutter bodies. Each cutter body is equipped with a large number of left and right hand inserts tangentially mounted. The shape of the inserts is designed according to the shape of the gears to be machined. First the roughing operation is performed and if nessesary a finishing operation is performed in order to obtain desired surface quality.
  • Fig.l shows a typical tangential insert used for gear milling.
  • the substrate comprises cemented carbide with a composition of 9-11 wt% Co, 10-14 wt-% TaC, 2-5 wt% NbC, 3-6 wt% TiC, and balance WC with an He-value of 12.8-15.2 kA/m and a hardness of 1425-1575 HV3.
  • the insert is provided with an aperiodic (Ti, Al)N multilayer consisting of a binary A/B/A/B/A/B structure with thin alternating sublayers A and B being repeated throughout the entire coating.
  • a sublayer A/B is here denoted a lamella. Due to the aperiodic nature of the coating, the thickness of each lamella varies but in average the lamella thickness is 30-300 nm, preferably 60-120 nm.
  • Sublayer A consists of Al x Tii_ x N, where x is 0.40-0.7, preferably 0.5-0.67.
  • Sublayer B consists of Ti y Ali_ y N, where y is 0.6-1, preferably 0.75-1.
  • the total thickness of coating is 2-6 ⁇ m on the edgelme.
  • the present invention also relates to a method of making a coated cutting tool insert consisting of a cemented carbide sub- strate and a coating.
  • a substrate as described above is made by conventional powder metallurgical technique milling, pressing and sintering.
  • this substrate is deposited a coating according to above using cathodic arc evaporation using two or three pairs of arc sources consisting of pure Ti and/or TiAl alloy (s), m an N 2 or mixed N 2 +Ar gas atmosphere.
  • arc sources consisting of pure Ti and/or TiAl alloy (s), m an N 2 or mixed N 2 +Ar gas atmosphere.
  • Example 1 A Cemented carbide milling inserts, special type, see Fig.l, and the composition 10 wt% Co, 12.1 wt-% TaC, 3.7 wt% NbC, 4.3 wt% TiC, and balance WC with a He-value of 14.1 kA/m and a hardness of 1500 HV3.
  • the multilayer was deposited from one pair of Ti 84 Al 16 -target and two pairs of Ti 33 Al 67 -targets with the inserts mounted on a three-fold rotating substrate table arranged in order to obtain the aperiodic structure.
  • the arc evaporation was performed in an N 2 -atmosphere .
  • the total coating thickness was 4 ⁇ m on the edge line.
  • the coating consisted of a binary A/B/A/B/A/B aperiodic multilayer, i.e. layers with a non-repetitive thickness, but with an average A+B layer thickness of 60-120 nm.
  • the insert was finally coated with a final outer layer of TiO . 84 AIO . I6 N to produce a bronze colour.
  • the uncoated substrate of A was coated using a target material consisting of Ti 33 Al 57 alloy by arc evaporation performed in an N2 gas atmosphere.
  • the resulting total coating thickness was 2.5 ⁇ m, and consisted of a homogeneous Al 0 62T10 3sN layer.
  • the top side (rake face) of the in- serts was subjected to intense wet blasting with a slurry consist ⁇ ing of AI2O3 grits and water removing the top TiN-layer on the rake face exposing a smooth CC-AI2O3.
  • Milling Cutter Diameter 216 mm, with six cutterbodies
  • Grade B (prior art) 122 segments
  • Grade C (reference) 138 segments

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)
  • Gear Processing (AREA)

Abstract

La présente invention porte sur un insert de coupe destiné au fraisage d'alliages coulés d'acier à faible teneur en carbone, comprenant un substrat de carbure cémenté et un revêtement. Le carbure cémenté est composé de 9-11 % en poids de Co, 10-14 % en poids de TaC, 2-5 % en poids de NbC, 3-6 % en poids de TiC, le reste étant du WC d'une valeur anHc de 12,8-15,2 kA/m et d'une dureté HV3 de 1425-1575. Le revêtement est constitué d'une multicouche apériodique (Ti, Al)N consistant en une structure binaire A/B/A/B/A/B à sous-couches alternées minces A et B qui se répètent dans tout le revêtement, l'épaisseur de chaque séquence A/B étant de 30-300 nm, la sous-couche A consistant en AlxTi1-xN, où x est 0,40-0,7 ; la sous-couche B consistant en TiyAl1-yN, où y est 0,6-1, une composition moyenne du revêtement de TizAl1-zN avec z = 0,40-0,7 et une couche de TibAl1-bN, b = 0,8-0,9, d'épaisseur suffisante pour donner un aspect épais de couleur de bronze homogène, visible et l'épaisseur totale de revêtement étant de 2-6 mm sur la ligne de contour.
PCT/SE2008/051356 2007-11-28 2008-11-26 Inserts de carbure cémentés revêtus pour fraisage d'engrenage dans des pièces coulées en acier à faible teneur en carbone Ceased WO2009070109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0702620 2007-11-28
SE0702620-6 2007-11-28

Publications (1)

Publication Number Publication Date
WO2009070109A1 true WO2009070109A1 (fr) 2009-06-04

Family

ID=40678836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/051356 Ceased WO2009070109A1 (fr) 2007-11-28 2008-11-26 Inserts de carbure cémentés revêtus pour fraisage d'engrenage dans des pièces coulées en acier à faible teneur en carbone

Country Status (1)

Country Link
WO (1) WO2009070109A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1038989A2 (fr) * 1999-03-26 2000-09-27 Sandvik Aktiebolag Plaquette de coupe à fraiser revêtue
WO2001016388A1 (fr) * 1999-09-01 2001-03-08 Sandvik Ab (Publ) Insert de coupe et de rainurage a revetement
WO2001018272A1 (fr) * 1999-09-06 2001-03-15 Sandvik Ab (Publ) Plaquette en carbure cemente a revetement
JP2002254229A (ja) * 2001-02-27 2002-09-10 Mmc Kobelco Tool Kk 高速切削ですぐれた耐摩耗性を発揮する表面被覆超硬合金製ドリル
WO2006080888A1 (fr) * 2005-01-31 2006-08-03 Sandvik Intellectual Property Ab Plaquette de carbure metallique pour des operations de forage de trous de faible profondeur necessitant de la resistance
EP1795628A1 (fr) * 2005-12-08 2007-06-13 Sandvik Intellectual Property AB Plaquette de coupe pour fraise d'acier
US20080299383A1 (en) * 2007-06-01 2008-12-04 Sandvik Intellectual Property Ab Fine grained cemented carbide cutting tool insert
US20080299366A1 (en) * 2007-06-01 2008-12-04 Sandvik Intellectual Property Ab Cemented carbide insert

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1038989A2 (fr) * 1999-03-26 2000-09-27 Sandvik Aktiebolag Plaquette de coupe à fraiser revêtue
WO2001016388A1 (fr) * 1999-09-01 2001-03-08 Sandvik Ab (Publ) Insert de coupe et de rainurage a revetement
WO2001018272A1 (fr) * 1999-09-06 2001-03-15 Sandvik Ab (Publ) Plaquette en carbure cemente a revetement
JP2002254229A (ja) * 2001-02-27 2002-09-10 Mmc Kobelco Tool Kk 高速切削ですぐれた耐摩耗性を発揮する表面被覆超硬合金製ドリル
WO2006080888A1 (fr) * 2005-01-31 2006-08-03 Sandvik Intellectual Property Ab Plaquette de carbure metallique pour des operations de forage de trous de faible profondeur necessitant de la resistance
EP1795628A1 (fr) * 2005-12-08 2007-06-13 Sandvik Intellectual Property AB Plaquette de coupe pour fraise d'acier
US20080299383A1 (en) * 2007-06-01 2008-12-04 Sandvik Intellectual Property Ab Fine grained cemented carbide cutting tool insert
US20080299366A1 (en) * 2007-06-01 2008-12-04 Sandvik Intellectual Property Ab Cemented carbide insert

Similar Documents

Publication Publication Date Title
EP1939328B1 (fr) Outil de découpe à revêtement multicouche
EP1347076B1 (fr) Plaquette de coupe revêtue par PVD pour outil de coupe
US9388487B2 (en) Nanolaminated coated cutting tool
US8043729B2 (en) Coated cutting tool insert
KR20100025522A (ko) 절삭 공구
JP2009039838A (ja) 表面被覆切削工具
JPH08281503A (ja) 切削インサートとその製造方法
JP3402146B2 (ja) 硬質被覆層がすぐれた密着性を有する表面被覆超硬合金製エンドミル
CN100556691C (zh) 涂覆的金属陶瓷切削刀具及其应用
US20080298921A1 (en) Coated cutting tool insert
EP2171127A1 (fr) Carbure cémenté à grains fins destiné au tournage de superalliages résistants à la chaleur (hrsa)
EP2072638A1 (fr) Insert de découpe revêtu
US20080050186A1 (en) Cemented carbide inserts for milling of hard fe-based alloys more than 45 HRC
US20070154739A1 (en) Coated cemented carbide inserts
US20070160843A1 (en) Coated cemented carbide inserts
JP5144850B2 (ja) 硬質被膜および硬質被膜被覆工具
WO2009070109A1 (fr) Inserts de carbure cémentés revêtus pour fraisage d'engrenage dans des pièces coulées en acier à faible teneur en carbone
JP3419140B2 (ja) 表面被覆切削工具
JPH05320913A (ja) 表面被覆切削工具
EP2217743A1 (fr) Insert de coupe revêtu pour usiner des alliages à base d'aluminium
EP2201152A1 (fr) Pièce rapportée de coupe revêtue pour l'usinage d'alliages à base de titane
US20090010724A1 (en) Coated cemented carbide inserts
JP2540905B2 (ja) 表面被覆硬質材料製切削工具
JP3230372B2 (ja) 硬質被覆層がすぐれた層間密着性および耐欠損性を有する表面被覆炭化タングステン基超硬合金製切削工具
WO2012079769A1 (fr) Outil en nitrure de bore cubique revêtu pour applications d'usinage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08855378

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08855378

Country of ref document: EP

Kind code of ref document: A1