caa a22 4500 475798384 CHVBK 20180406123730.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1007/s001700070007 doi (NATIONALLICENCE)springer-10.1007/s001700070007 A Next Generation NC Machining System Based on NC Feature Unit and Real-Time Tool-Path Generation [Elektronische Daten] [L. Zhang, J. Deng, S. C.-F. Chan] In order to improve the control and information integration capability of an NC machining system, this paper provides a new concept - an NC feature unit (NCFU), which is a feature-based and a basic control unit. First, as a feature-based control unit, NCFU possesses geometric form and control parameters, which are a subclass of high-level CAD/CAM features so that it can be used as an information exchange medium between NC machining systems and other manufacturing execution systems. Secondly, as a basic machining control unit, NCFU uses a geometrically defined closed and non-gouging machined area. On the one hand, through decompo-sition, a machined object can be divided into a combination of several NCFUs. On the other hand, since NCFUs are non-gouging, the algorithm for NCFU-based tool-path generation is simple enough to be executable in real-time. This paper discusses NCFU-based applications in 2.-D profile/pocket and 3D surface mill machining, including the NCFU definition and the related algorithms for decomposition calculation and area interpolation. A next generation NC machining system based on NCFU, including an NCFU-based NCP and an NCFU-based CNC system, has been prototyped by China's State 863/CIMS Design Automation Laboratory in Beijing University of Aeronautics and Astronautics. An NCFU is being used as the information exchange medium in an internet-integrated manufacturing system with NC machining at Hong Kong Polytechnic University.: Springer-Verlag London Limited, 2000 Keywords: Computer numerical control nationallicence numerical control programming nationallicence NC Feature Unit nationallicence Tool Path nationallicence Zhang L. Institute of Manufacture Systems, Beijing University of Aeronautics and Astronautics, Beijing, China, CN aut Deng J. Institute of Manufacture Systems, Beijing University of Aeronautics and Astronautics, Beijing, China, CN aut Chan S. C.-F Department of Computing, The Hong Kong Polytechnic University, Hong Kong, HK aut https://doi.org/10.1007/s001700070007 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001700070007 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang L. Institute of Manufacture Systems, Beijing University of Aeronautics and Astronautics, Beijing, China, CN aut NATIONALLICENCE 700 1- Deng J. Institute of Manufacture Systems, Beijing University of Aeronautics and Astronautics, Beijing, China, CN aut NATIONALLICENCE 700 1- Chan S. C.-F Department of Computing, The Hong Kong Polytechnic University, Hong Kong, HK aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer