公开(公告)号：US09822438B2

公开(公告)日：2017-11-21

申请号：US14672515

申请日：2015-03-30

Applicant: Kennametal Inc.

Inventor： Joern Kohlscheen

IPC: C23C14/06 ,  C23C14/00 ,  C23C14/08 ,  C23C14/34 ,  C23C28/04

CPC classification number: C23C14/0036 ,  C23C14/0057 ,  C23C14/0676 ,  C23C14/08 ,  C23C14/3485 ,  C23C28/042 ,  C23C28/044

Abstract: The invention relates to a method for producing a coated cutting tool in which a coating with at least one oxide layer is applied to a base layer by means of a PVD method. The method includes voltage-pulsed sputtering of at least one cathode metal selected from the group of aluminum, scandium, yttrium, silicon, zinc, titanium, zirconium, hafnium, chromium, niobium, and tantalum, as well as mixtures and alloys thereof in the presence of a reactive gas; and the depositing of at least one oxide layer formed by converting the reactive gas with the sputtered cathode metal onto the base body. The cathode metal includes at least aluminum. Dinitrogen oxide is used as the reactive gas. The at least one oxide layer is in the form of an oxide, mixed oxide, or oxide mixture of the at least one cathode metal.