Abstract
Integration of computer-aided design (CAD) and computer-aided manufacturing (CAM) have been extensively studied by the people both in academia and industry during the last few decades. Because of fluency of information flow achieved by taking the same data model, advantages brought from integration of CAD and CAM are obvious, such as cost savings and improved efficiency. However, another impediment about information flow still exists between CAM and Computerized Numerical Control (CNC). The data model used in the planning department is quite different to the G codes (ISO 6983) used on the shopfloor. This means that the translation of the data format is inescapable, moreover, any information added or modified by the operator on the shopfloor cannot be fed back to the planning department. a two-directional interface between CAM and CNC. Integration of CAM and CNC based on STEP-NC can be realized seamlessly.
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