Developing an Approach to Redesign Freeform Surfaces Using B-Spline Technique

Developing an Approach to Redesign Freeform Surfaces Using B-Spline Technique

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In product design process trends currently tend to use sculpture surface (freeform surface) that modeling by using (NURBS, B-spline, Bezier) technique to suit aesthetic, functional and manufacturability requirements.The B-Spline technique is one of Calcium the most important tools in computer aided geometric design (CAGD).This paper reported a new approach to design 3D freeform CAD model and then represented this model mathematically by using B-Spline technique.This mathematical represent consider one of the important aims that useful in manufacturing process through its geometric data which defines by this represent.The approach has three major steps: design 3D CAD solid contain freeform surface by using CAD software, analysis and extraction the parameters including geometric data of 3D CAD model based on IGES file Multi-board format, and then construction the B-Spline surface of the model that contain multi patches by using basis function of the surface.

The approach has been extensively tested with more than case study has 3 degrees of the surface then represented mathematically in four patches.