Patent ID: 9200371
Filing Date: 2015-12-01
Classification: B82Y,C23C

Abstract:
1. Method for manufacturing a coated body within which a coating comprising a nanolaminated structure 5 of alternating A nano-layers consisting of at least 90 at.-% AlTiN and B nano-layers consisting of at least 90 at.-% TiSiN is deposited on the substrate surface, wherein at least two arc vaporization sources are used for the deposition of the nanolaminated structure, characterized in that each one of the at least one arc evaporation source comprises a magnetic field arrangement provided on a target for generating magnetic fields on and above the target surface, wherein the magnetic field arrangement comprises marginal permanent magnets, a centric permanent magnet and at least one ring coil placed behind the target, whose inner diameter defined by the windings is smaller than or equal to, and in any case not considerably larger than the diameter of the target, and during the deposition of the nanolaminated structure the marginal permanent magnets are positioned away from the target, at a distance of several millimeters in relation to the target, in such a manner that the projection of the marginal permanent magnets onto the target surface is further away from the middle of the target surface by comparison to the projection of the ring coil onto the target surface, and the centric permanent magnet is positioned back away rear in relation to the target, and the target of one of the at least two arc evaporator sources comprises AlTi and the target of the another arc evaporator source comprises TiSi, and the coating parameters and the distance between the permanent magnets and the target in each one of the at least two evaporation sources, are adjusted in such a manner that the nanolaminated film is deposited having a fine-grained microstructure which can be observed in SEM micrographs of fractured cross sections of the coating.