PRESS FORMING DIE AND METHOD OF MANUFACTURING PRESS FORMING DIE PROTECTION FILM

摘要

A mold for press-molding has a protective film formed on a molding surface which contacts at least the object to be molded, for preventing sticking at the time of press molding. This protective film is formed by the PVD method, and an arbitrary selected section selected from the surface thereof is divided into a plurality of individual sections, and the number of the divided sections is set to N, and the number of the divided sections from the end of the selected section to the n- The square root mean square (R? Q) calculated from the following equation is 0.032 or less when the slope of the surface is (dZ _n / dX _n ). This makes it possible to improve the seizure sound of the press forming die having the protective film formed by the PVD method.