Reference Based Geometric Modeling for Heterogeneous Objects

AbstractHeterogeneous Object (HO) is a blend of two or more materials with different characteristics with or without any specific boundary interface. Material properties of such objects are controlled according to the defined functional requirement. Some of the rapid prototyping processes can fabricate such objects but require both geometric and material distribution information in a related CAD model. Developed ‘Gradient Reference’ based approach has capability to represent such information for geometric modeling and fabrication of HO. The approach introduces the concept of gradient references and boundary enclosures to distribute the material in the heterogeneous object domain. A system structure integrating different modules is described to produce required CAD data for rapid prototyping of HO. The proposed model is extended to implement a user defined material distribution function in an object and properties at different locations in an HO are defined accordingly. In the current work, a sub-division ...

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