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Using automated tools in both CAD surface and CAE mesh environments, DFE generates binder surfaces, addendum profiles/surfaces, PO line and layout drawbeads.
ImageNURBS Surface Based Infrastructure
Compatible with all major CAD codes, high quality CAD surfaces are produced throughout the DFE module.
Automated tipping, reverse trimming, undercut/draw depth calculation, filleting and unflanging functions minimize the work required to design the die from the part geometry. Automated and flexible tools, such as morphing capability, are provided for binder surface and addendum profile generation, as well as fine adjustment.
Binder and Addendum Surface Generation -
Based on part geometry, various CAD surface generation tools are provided to create, edit and morph the CAD surfaces to generate desirable binder surfaces. The advanced addendum generator creates a series of profiles based on draw depths and the shape of the part between the binder and the die cavity. The profiles are then meshed and surfaced to create a complete addendum for forming. Profiles can be edited using interactive functions or by adjusting the shape of the PO line.
Parametrical Definition -
Addendum profiles and geometry drawbeads are parametrically defined. Quick adjustments are then possible by editing parameters.
Associativity -
Since all surfaces and profiles are parametrically defined; the binder surface, addendum profiles/surfaces and PO Line are also fully associated. Therefore, modification of one entity can be extended to the other entities due to the associativity characteristics. This practice is implemented throughout the DFE module to fine-tune the addendum geometry.
Geometry Drawbeads (Available in DFE & FS) -
Based on various benchmarks and extensive research, it has been determined that the geometry of the drawbeads have a great deal of influence on the accuracy of the springback results. Within DFE, the commonly used drawbead geometry can be parametrically generated and interchanged with the analytical (line) drawbead. This capability can be customized for various drawbead designs/applications.
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