Method of correcting die model data
First Claim
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1. A method of correcting die model data, comprising:
- a first step of producing die model data based on a formed article model with a computer;
a second step of producing a die based on said die model data;
a third step of correcting said die;
a fourth step of measuring the corrected die to produce measured three-dimensional die data; and
a fifth step of comparing said measured three-dimensional die data with said die model data with a computer, bringing a first surface represented by said measured three-dimensional die data into proximity to a second surface represented by said die model data, calculating absolute values of distances between a plurality of pairs of measuring points on said first surface and corresponding points on said second surface, and correcting said die model data based on the absolute values of the distances.
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Abstract
A die is produced based on die model data. The produced die is corrected. The corrected die is three-dimensionally measured by a measuring tool to produce measured three-dimensional die data. A polygonal surface represented by the measured three-dimensional die data and a model surface represented by the die model data are compared with each other. The polygonal surface is brought into proximity to the model surface, and the absolute values of the distances between a plurality of pairs of measuring points on the polygonal surface and corresponding points on the model surface are calculated. The die model data are corrected based on the absolute values of the distances.
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Citations
5 Claims
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1. A method of correcting die model data, comprising:
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a first step of producing die model data based on a formed article model with a computer; a second step of producing a die based on said die model data; a third step of correcting said die; a fourth step of measuring the corrected die to produce measured three-dimensional die data; and a fifth step of comparing said measured three-dimensional die data with said die model data with a computer, bringing a first surface represented by said measured three-dimensional die data into proximity to a second surface represented by said die model data, calculating absolute values of distances between a plurality of pairs of measuring points on said first surface and corresponding points on said second surface, and correcting said die model data based on the absolute values of the distances. - View Dependent Claims (2, 3, 4, 5)
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Specification