| 摘要 |
PROBLEM TO BE SOLVED: To improve the dimensional accuracy of plastic working, to reduce the product cost and to shorten the manufacturing schedule. SOLUTION: A computer is provided with a metal mold initial molding function for molding a metal mold for a plastic product on the basis of a previously determined design shape of the plastic product, a product shape calculation function for calculating the shape of the plastic product to be manufactured by the metal mold molded on the basis of a manufacturing condition of the product, a shape comparing function for comparing the calculated shape of the product with the design shape, a product redesigning function for calculating a new design shape of the product on the basis of the compared result, and a metal mold remolding function for molding a new metal mold on the basis of the new design shape.
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