| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a die blade for punching in which the punching efficiency is improved while the punching accuracy is maintained. SOLUTION: Plural projecting blades 11a-11j are manufactured, and integratedly mounted on a punch plate 13, and then, these projecting blades 11a-11j are inserted in material powders 15 which are raw material of recessed blades, and the press-forming and sintering are achieved in this condition to manufacture recessed blades 12a-12j corresponding to the projecting blades 11a-11j.
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