| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a die correction method by which an error is corrected more easily and a shape error between an upper die and lower die of the die is also corrected. <P>SOLUTION: A formed article 1 is manufactured by press-forming a metal sheet by the die 4 which is prepared in accordance with formed article CAD data, and a surface measurement data and a rear surface measurement data are obtained by measuring the face shapes of the surface and the rear surface of the formed article 1 (S50-S58). The error distribution on the surface side of the formed article 1 is obtained by collating the surface CAD data which has been obtained from the formed article CAD data with the surface measurement data and also the error distribution on the rear surface side of the formed article 1 is obtained by collating the rear surface CAD data which has been obtained from the formed article CAD data with the rear surface measurement data (S60, S62). The surface side error or the rear surface error is selected as a reference for the correction of the die 4 on the basis of the error distribution on the surface side and the error distribution on the rear surface side surface side, then the die 4 is corrected (S64-S72). <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
