Patent ID: 8580406
Filing Date: 2013-11-12
Classification: B29C,C09D,C23C,Y10T

Abstract:
1. A die for cold plastic working comprising a material comprising a substrate and a hard coating film formed on a surface of the substrate and formed by a cathode arc ion plating method, wherein the hard coating film comprises (Nb x M 1-x ) y (B a C b N 1-a-b ) 1-y , wherein wherein, M denotes V only, or V and at least one species of elements belonging to Groups 4a, 5a, which are different from V, and 6a and Si and Al; x, 1-x, a, b, and 1-a-b represent respectively the atomic ratio of Nb, M, B, C and N; y and 1-y represent respectively the ratio of (Nb