CAJ | 학술논문

为了提高微细电火花加工（ micro?EDM）效率，设计了一种脉冲参数主动匹配式micro?EDM脉冲电源。采用主动匹配式脉冲发生电路实现脉冲参数根据极间电容充放电情况自动匹配，通过实验，对电源的加工效率、加工质量和低电压加工情况进行了分析。结果表明：采用该电源可以实现在单个脉冲周期内，极间电容单次充电、单次放电；与常规晶体管脉冲电源比较，该电源可以提高加工效率，加工表面变质层无裂纹、凹坑均匀、加工质量较高；可以实现24 V低电压加工，加工后的微孔圆度和精度较高。该电源具有提高微细电火花加工效率，保证较高加工质量的作用。
위료제고미세전화화가공（ micro?EDM）효솔，설계료일충맥충삼수주동필배식micro?EDM맥충전원。채용주동필배식맥충발생전로실현맥충삼수근거겁간전용충방전정황자동필배，통과실험，대전원적가공효솔、가공질량화저전압가공정황진행료분석。결과표명：채용해전원가이실현재단개맥충주기내，겁간전용단차충전、단차방전；여상규정체관맥충전원비교，해전원가이제고가공효솔，가공표면변질층무렬문、요갱균균、가공질량교고；가이실현24 V저전압가공，가공후적미공원도화정도교고。해전원구유제고미세전화화가공효솔，보증교고가공질량적작용。
For the purpose of increasing the efficiency of micro electron discharge machining ( micro?EDM) , an ac?tive matching micro?EDM pulse power supply is designed. Using the active matching pulse generation circuit, the pulse parameters can be matched automatically depending on the charge and discharge of the polar capacitor. The machining efficiency, quality and low voltage machining property were analyzed through experiments. The result shows that the pulse supply can accomplish a single charge and discharge in one pulse cycle. Compared with regular transistor pulse generator, this power supply can improve material remove rate and machining quality, the sizes of pits are almost the same, with no metasomatile deposit. The pulse supply can work in 24V low voltage charge, with high roundness and precision of the machined micro?hole. This power supply can enhance the efficiency of micro?EDM machining and guarantee a high machining quality.