MoNbCN multi-element gradient composite coating cutting tool and preparation method thereof

摘要: The invention belongs to the field of machining cutting tools and particularly relates a MoNbCN multi-element gradient composite coating tool preparation method thereof. sequentially comprises base body, Ti transition layer, MoNbC layer with nitrogen content being gradually varied in mode from inside outside. Firstly, is deposited through electric arc plating, then are an unbalanced magnetron sputtering method. Two elements Mo Nb simultaneously added super-hard carbonitride coating, nitrogen, namely structural component so that performance can be significantly improved. has quite high hardness toughness, low surface friction coefficient, good oxidation resistance impact performance, excellent wear crater capability.