EP 0963456 A1 19991215 - MULTILAYERED PVD COATED CUTTING TOOL
Title (en)
MULTILAYERED PVD COATED CUTTING TOOL
Title (de)
MEHRLAGIG PVD-BESCHICHTETES SCHNEIDWERKZEUG
Title (fr)
OUTIL DE COUPE DOTE D'UN REVETEMENT MULTICOUCHE EN DPPV
Publication
Application
Priority
- SE 9802268 W 19981209
- SE 9704630 A 19971210
Abstract (en)
[origin: WO9929920A1] The present invention relates to a cutting tool comprising a body (1) of a sintered cemented carbide or cermet, ceramic or high speed steel on which, at least on the functioning parts of the surface of the body, a thin, adherent, hard and wear resistant coating (2) is applied. The coating comprises a laminar structure of refractory compounds in a polycrystalline, repetitive form: (MLX/Al2O3) lambda (MLX/Al2O3) lambda / (MLX/Al2O3) lambda / (MLX/Al2O3) lambda /... where the alternating sublayers consist of metal nitrides (or carbides) and crystalline alumina (4) of the alpha( alpha )- and/or the gamma( gamma ) phase, preferably of metal nitrides and crystalline alumina of the gamma phase. The metal elements in the layers MLX (3) are selected from Ti, Nb, Hf, V, Ta, Mo, Zr, Cr, W and Al. The repeat period lambda (5) is essentially constant through the entire multilayered structure, and larger than 3 nm but smaller than 100 nm. The total thickness of said multilayered coating is larger than 0.5 mu m but smaller than 20 mu m.
IPC 1-7
IPC 8 full level
B23B 27/14 (2006.01); C23C 14/06 (2006.01); C23C 14/08 (2006.01); C23C 16/30 (2006.01); C23C 28/04 (2006.01); C23C 30/00 (2006.01)
CPC (source: EP)
C23C 14/0641 (2013.01); C23C 14/081 (2013.01); C23C 28/042 (2013.01); C23C 28/044 (2013.01); C23C 28/42 (2013.01); C23C 30/005 (2013.01)
Citation (search report)
See references of WO 9929920A1
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
WO 9929920 A1 19990617; EP 0963456 A1 19991215; IL 131227 A0 20010128; JP 2001513708 A 20010904; SE 518151 C2 20020903; SE 9704630 D0 19971210; SE 9704630 L 19990611
DOCDB simple family (application)
SE 9802268 W 19981209; EP 98962794 A 19981209; IL 13122798 A 19981209; JP 53087999 A 19981209; SE 9704630 A 19971210