| 摘要 |
PROBLEM TO BE SOLVED: To easily obtain a difference value between the corresponding points of a model face acquired by design and a metallic mold polygon face acquired by three-dimensional measurement, and to precisely and quickly prepare a repeat mold by correcting the metallic mold model data based on the difference value. SOLUTION: A metallic mold is prepared based on metallic mold model data. The acquired metallic mold is corrected. The corrected metallic mold is three-dimensionally measured by a measurement unit, and metallic mold three-dimensional measurement data are acquired. A polygon face 101 of the metallic mold three-dimensional measurement data is contrasted with a model face 106 of the metallic mold model data, and the polygon face 101 is allowed to approach the model face 106, and an absolute value L of distances between a plurality of pairs of measurement points 102 and corresponding points 120 between the polygon face 101 and the model face 106 is calculated, and metallic mold model data are corrected based on the absolute value L of the distances. COPYRIGHT: (C)2008,JPO&INPIT
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