To provide a punch tool made of ferrous alloy which is coated with a film capable of reducing abrasion with a surface of the other material, even if fabrication is performed, and which is coated with a film capable of preventing damage of the punch tool made of ferrous alloy, even if the abrasion of the film is generated.
A vanadium-containing film which is expressed by V(1-x)Cx, where X lies in the range of >70 at% and ≤95 at% in an atomic percentage, is coated to the punch tool made of ferrous alloy 21. Further, a composite film is coated between the punch tool made of ferrous alloy 21 and the vanadium-containing film, and, in order of close distance from the punch tool made of ferrous alloy 21, the composite film is made of a V film and a V(1-Y)CY film (where Y lies in the range of ≥40 at% and ≤60 at% in the atomic percentage).
KURUMAYA KUNIO
JP2005046975A | 2005-02-24 | |||
JP2002371352A | 2002-12-26 | |||
JP2001047150A | 2001-02-20 |
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