抄録
Existing numerically controlled (NC) machine tools contribute to improving machining accuracy and productivity by tool motion control that is specified in part programs or NC programs. However, it is not possible to realize intelligent machine tools using existing methods in which machining operations are instructed by an NC program. Rather, a new concept, CAM-CNC integration, is needed to realize innovative intelligent machine tools. In our research, a new methodology to generate instruction commands for real-time machine control instead of preparing NC programs is developed using the CAM-CNC integration concept. The new methodology, which digitalizes the principle of copy milling, viz. Digital Copy Milling (DCM), can control the NC machine tool directly using 3D CAD models of the product and the raw material shapes and enable the NC machine tool to perform cutting process control. This innovative intelligent NC machine tool enables a reduction in NC program preparation time for rapid manufacturing and also avoids machining troubles.
