【摘要】 采用超短脉冲电流技术进行微细电解线切割加工,脉冲电压是决定所能加工厚度的关键因素之一,提高超短脉冲电压可以在有效抑制杂散腐蚀的同时切割加工厚度比较大的工件。构建了线电级往复运丝的微细电解线切割试验系统;工件为800μm的镍板,线电极为直径10μm的钨丝;采用正交试验研究了脉冲电压、脉冲宽度、脉冲周期和电解液浓度对加工精度的影响;选用实际最优参数在厚800μm的镍板上切割加工出了宽度约为35μm的悬臂梁结构。更多还原

【Abstract】 The ultrashort pulse current technology was used in micro electrochemical wire cutting,under this conditions,pulse voltage was one of the key factors to determine the machining thickness.The improvement of ultrashort pulse voltage can effectively suppress the stray corrosion and cut the workpiece with large thickness.A micro electrolytic wire cutting test system with reciprocating wire was established,the work piece was nickel plate with 800μm thickness,and the wire electrode was tungsten wire with 10μm diameter.The effects of pulse voltage,pulse width,pulse period and electrolyte concentrations on the machining accuracy were studied by using orthogonal test.The cantilever structure with a width of about 35μm was cut on the 800μm thick nickel plate with the actual optimal parameters.更多还原