公开(公告)号：US20220106677A1

公开(公告)日：2022-04-07

申请号：US17427872

申请日：2020-02-03

申请人： Oerlikon Surface Solutions AG, Pfäffikon

发明人： Ali KHATIBI ,  Hamid BOLVARDI ,  Etienne BILLOT ,  Nikolas SCHAAL ,  Pascal SCHABACK ,  Mirjam ARNDT

IPC分类号： C23C14/06 ,  B21D22/02 ,  C23C14/35 ,  C23C14/00 ,  C23C14/16 ,  C23C28/04

摘要： Coated tool for hot stamping of coated or uncoated sheet metals, in particular for hot stamping of AlSi- or Zn-coated sheet metals[KM2], comprising a coated substrate surface to be in contact with the coated or uncoated metal sheet, wherein the coating in the coated substrate surface is a multi-layer coating comprising one or more inferior layers and one or more superior layers, where the inferior layers are deposited closer to the substrate surface than the superior layers, whereas: —the inferior layers are designed for providing load bearing capacity, —the superior layers are designed for providing galling resistance, —at least one superior layer (layer 5) is deposited having a multi-nanolayer structure formed by sublayers of the type A, B and C, said three kind of sublayers being nanolayers deposited alternate one on each other forming a sequence of the type . . . A/B/C/A/B/C/A . . . , wherein at least two sequences of one A nanolayer, one B nanolayer and one C nanolayer are deposited forming the multi-nanolayer structure wherein: —the nanolayer of type A is composed in at least 90 at.-% of chromium and nitrogen, —the nanolayer of type B is composed in at least 90 at.-% of titanium, aluminum and nitrogen, —the nanolayer of type C is composed I at least 90 at.-% of vanadium carbon and nitrogen, and —the layer thickness of the at least one superior layer (layer 5) is not lower than 0.5 μm and not higher than 15 μm.