| Summary: | 碩士 === 國立臺灣大學 === 機械工程學系 === 85 === A computer-aided engineering (CAE) program based on the
geometric analysis was developed for the stamping die design. In
the program, only the geometries of toolings and sheet-blank
were taken into consideration, and no plasticity theory was
applied to. In order to define the tooling geometries, the
three-dimensional surface data were projected onto a selected
plane, and formed the data base for the subsequent analyses. The
deformed shape of sheet-blank in the diecavity was then
determined according to theovement of punch. From the
deformation path, the prediction of stamping defects can be made
with the use of design experience
In the present study, three modulus: "press tonnage
calculation", "cross section shape of sheet-blank"i and
"movement of sheet-blank", were developed. Since no mechanics is
involved in the analysis, the stress and stain distributions are
not available in the program. However, due to the simplicity of
the program, it will be of much help to the die engineers for
the preliminary design of stamping dies.
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