| 摘要 |
A method of manufacturing a metal mold, comprising the steps of measuring th e shape of a metal mold material (20) manufactured with a working tolerance provided thereto with a measurer (16), generating and storing an envelope model (M2) on a computer (12) based on the measurement data, moving the product forming surface (M1B) of a metal mold model (M1) based on a metal mo ld design data closely to the product forming surface (M2B) of the envelope mod el on the computer (12), searching the state where the working amount of the product forming surface (20B) of the metal mold material (20) is reduced, an d cutting the reference surface (20A) and product forming surface (20B) of the metal mold material (20) by a metal mold working machine (18) controlled by the computer (12).
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