| 摘要 |
PROBLEM TO BE SOLVED: To support to specify a part that causes a dimensional error of a press-formed product. SOLUTION: The support is carried out as follows: (S1) shape-data of a metal mold are read; (S2) shape-data of the press-formed product pressed by the metal mold are read; (S3) the minimum radius of curvature of a curved part of the mold is calculated based on the read shape-data of the mold; (S4) an evaluation range for evaluating the dimensional accuracy is calculated from the calculated minimum curvature radius; (S5) shape data existing in the evaluation range are extracted from the shape data of the press-formed product; (S6) a main curvature of a curved surface formed by the shape data of the press-formed product is calculated; (S7) the shape data of the mold corresponding to the extracted shape data of the press-formed product are extracted, and a main curvature of a curved surface formed by the extracted shape data of the mold is calculated; (S8) the difference between the calculated curvatures of both curved surfaces is calculated; and (S9) the calculated difference of the curvatures is displayed. COPYRIGHT: (C)2004,JPO
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