| 摘要 |
A molding core includes: a substrate having a roughened article-shaping surface; and a hard coating formed on the roughened article-shaping surface of the substrate and including a protective film that comprises a metal complex of carbon and at least one noble metal selected from the group consisting of Pt, Ir, Ru, Re, Rh, Ta, and Os. The protective film has a thickness greater than 5 mum so as to increase the number of times that the protective film can be repaired. Combination of the noble metal and carbon can prevent the noble metal of the protective film from reacting with carbon of a diamond tool during turning process.
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