Abstract
A method for automatically extracting the machining features from 3D CSG solid input is proposed. The method involves converting a part's CSG tree representation into its equivalent DSG tree representation and then identifying the types of machinable features from the DSG tree. A DSG tree is a special case of CSG tree in which all geometric operations are of ‘difference’ type. The method is proposed for recognizing prismatic part features and its outputs contain feature attributes and possible tooling entrance faces, etc. Computer simulation is provided to illustrate the proposed method.
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