Abstract
AbstractThis investigation presents an effective algorithm of searching parts with similar shape and manufacturing features from a CAD files, identifying parts with similar shapes and features, in order to share their design and manufacturing data in product data management (PDM) systems. Polar Fourier Transform (PFT) analysis is applied to the shadings image of a part to obtain its Generic Fourier Descriptor (GFD) indexes, while feature recognition is employed to obtain the manufacturing features of a part. The similarity of two parts can be defined using GFD index and feature information. This proposed approach can be applied to PDM systems in web-based environment to search parts with a particular shape and manufacturing feature, and to process the automatic version control by analyzing the differences in shape and manufacturing feature of different version parts.
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