| Summary: | 碩士 === 大葉大學 === 電機工程學系碩士在職專班 === 95 === In this study, a control chip of EDM (electric discharge machine) will be designed to replace a complicated PC-based controller. Using an FPGA-based (Filed Programmable Gate Array) for the controller, the Z axis numerical control system (ZNC) can be implemented in the system.
This FPGA-based is equipped in the CR-5 type of Creator pricision Co,.Ltd for the function of data display, operation flow, and ignition delay control during the erosion process. Xilinx product Spartan-3E family xc3s500epq208 is selected by the usage of the controller. The software is designed by Xilinx ise 8.2, and the hardware description language is Verilog HDL. The fuzzy type ignition delay controller which is installed in the FPGA can improve the erosion performance comparing with the traditional low pass filter type gap control during EDM’ing. The actual experiments enhance the actual eroding performacne such as wear ratio of the electrode and eroding speed during EDM’ing.
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