Tool comprising a base body made of hard metal, cermet, ceramics, steel or high-speed steel and a single-layer or multi-layer anti-wear protective coating applied thereon in the PVD process, at least one layer of said anti-wear protective coating being a titanium-aluminum-nitride layer, TixAlyN where x+y=1, which layer can contain, according to the process, up to 5% by weight of further metals, characterized in that the TixAlyN layer is a multi-coat substructure having a plurality of periodically alternating Tix(A)Aly(A)N coats (A) where x(A)+y(A)=1 and Tix(B)Aly(B)N coats (B) where x(B)+y(B)=1, the Al concentration y(B) in coats (B) amounting at most to 70 at. % (y(B) 0.70) and the Al concentration y(B) in coats (B) being from 10 to 25 at. % higher than the Al concentration y(A) in coats (A) (y(B)=(y(A)+0.10) to (y(A)+0.25)).
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机译:该工具包括由硬质金属,金属陶瓷,陶瓷,钢或高速钢制成的基体,以及在PVD工艺中施加在其上的单层或多层抗磨保护涂层,至少一层所述抗磨层保护涂层是氮化钛铝层Ti x Sub> Al y Sub> N,其中x + y = 1,根据该工艺,该层最多可包含5个重量百分比的其他金属,其特征在于Ti x Sub> Al y Sub> N层是具有多个周期性交替的Ti x(A ) Sub> Al y(A) Sub> N涂层(A),其中x(A)+ y(A)= 1和Ti x(B) Sub> Al y(B) Sub> N个涂层(B),其中x(B)+ y(B)= 1,涂层(B)中的Al浓度y(B)最高为70 at。 %(y(B)为0.70),并且涂层(B)中的Al浓度y(B)为10〜25at。%。比涂层(A)中的Al浓度y(A)高%(y(B)=(y(A)+0.10)至(y(A)+0.25))。
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