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In process planning, how to obtain an optimal process planning is the essential of computer-aided process planning (CAPP) system. The main goal of CAPP system is to derive manufacturing features and machining operations from a design model and sequence the machining operations of the part in a feasible (by some technological constraints) and effective (by(More)
A process-planning model (PP model) is proposed to convert the geometric features into manufacture machining operations and sequence the machining operations of the part in a feasible and effective order. The process-planning model (PP model) construct a feature framework that makes a mapping from geometric features into machining operations. A semantic net(More)
To describe full part information and promote development of CAD/CAM technique, six feature operator algorithms such as PAD, SHAFT are defined by analyzing static feature structure of parts; by research of dynamic semantic relation between features, two reasonable constraint features “AND constraint feature” and “OR constraint feature” are attained; organic(More)