平面摩擦副表面脉冲电流电解磨削试验研究

Experimental research on pulsed current electrochemical grinding of working surface in plane friction pairs

为了提高剃须刀摩擦副的刀网内平面电解磨削加工质量，采用流场数值分析对3种不同结构的磨头进行了流速分布均匀性研究，并对流场数值分析进行了试验验证．基于数值分析和试验验证，开展了峰值电压、占空比、机械进给速度、电解液温度等参数对粗糙度、平面度影响规律的试验研究．结果表明：采用峰值电压10.5 V、占空比50％、进给速度0.8～0.9 mm/min、电解液温度30～32℃的优选参数组合，粗糙度为0.3～0.6μm，平面度小于10μm，同时刀网内平面加工质量稳定且加工效率高，已经能够满足批量生产的需要．

In order to improve the electrochemical grinding quality of the shaver cap＆#39;s inner flat sur-face in the shaver friction pair,the electrolyte flow velocity distribution uniformity of three kinds of grinding head structures is studied by flow numerical analysis,and experiments are carried out to verify the results of flow numerical analysis.Based on the flow numerical analysis and experimental verifications,the influence law of peak voltage,duty cycle,mechanical feedrate,electrolyte temper-ature,and other machining parameters on the surface roughness and flatness is studied by experi-ments.The results show that roughness in the range of 0.3 to 0.6 μm and flatness less than 10μm can be obtained by adopting optimized parameters,i.e.10.5 V peak voltage,50%duty cycle,0.8 to 0.9 mm/min mechanical feed rate,and 30 to 32 ℃electrolyte temperature.Besides,under the optimized parameters,the stable machining quality and high machining efficiency of the shaver cap＆#39;s inner flat surface can be obtained,which meet the needs of mass production.