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In order to promote the high frequency performance of open architecture CNC system, an embedded CNC controller combining FPGA (Field Programmable Gate Array) technology and real-time Ethernet communication bus was designed, which consisted of an embedded ARM (Advanced RISC Machines) processor and an FPGA. An open source CNC software running under Linux operating system was customized to accommodate...
Determination of the cutting force during metal machining process is of particular importance because of its controlling influence to cutting deformation, tool wear, tool life, as well as the quality of machined part. Numerous attempts have been made to approach this problem with different methods, such as analytical, empirical, numerical, hybrid models. But the complexity of cutting process makes...
Order tracking technique is an effective frequency analysis method, which uses multiples of the running speed as the frequency base (orders) and commonly used in rotating machinery vibration signal analysis. It is a dedicated non-stationary vibration processing technique to detect speed-related vibrations. Angular sampling theory based computed order tracking (COT) method is the most widely used method...
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