A high-precision continuous dressing technology, namely ultrasound-aided electrolytic in-process dressing method, was proposed in this paper, aiming at overcoming the difficulty in continuous dressing for fine diamond wheel during the super mirror processing, such as optics and aeronautics. Firstly, the influence of high-frequency ultrasonic vibration on electrolysis was analyzed on the basis of the mechanism of electrolysis. Then, the compared tests between the common electrolytic in-process dressing grinding and the ultrasound-aided electrolytic in-process dressing grinding of the grinding wheel were employed to observe the effect of dressing and the state of abrasive particle. It was found experimentally that under the latter dressing, the better dressing effect could be gained, and the number of abrasive particle per unit area, the sharpness of abrasive and the average grain protrude height were improved; meanwhile, the distribution of grains become more uniform. In addition, compared with the former dressing, the average distance between grains was decreased, and the microscopic roughness of grinding wheel physiognomy was increased in the latter dressing. Finally, the grinding experiment was carried out to illustrate the advantages of the ultrasound-aided electrolytic in-process dressing grinding. The experimental results revealed that the removal rate and machining surface quality were increased compared with the common electrolytic in-process dressing grinding.

中文翻译：

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超声辅助电解在线修整磨削微金刚石砂轮在线修整机理

针对光学、航空等超镜面加工过程中精细金刚石砂轮连续修整难点，本文提出了一种高精度连续修整技术，即超声波辅助电解在线修整法。首先，根据电解机理分析了高频超声振动对电解的影响。然后，采用普通电解在线修整磨削与超声辅助电解在线修整磨削砂轮的对比试验，观察修整效果和磨粒状态。实验发现，在后一种修整下，可以获得更好的修整效果，单位面积磨粒数，磨料的锋利度和平均颗粒突出高度得到提高；同时，晶粒的分布变得更加均匀。此外，与前者修整相比，后者的修整晶粒间的平均距离减小，砂轮面相的微观粗糙度增加。最后，通过磨削实验来说明超声辅助电解在线修整磨削的优点。实验结果表明，与普通电解在线修整磨削相比，去除率和加工表面质量都有所提高。砂轮平均间距减小，砂轮表面显微粗糙度增加。最后，通过磨削实验来说明超声辅助电解在线修整磨削的优点。实验结果表明，与普通电解在线修整磨削相比，去除率和加工表面质量都有所提高。砂轮平均间距减小，砂轮表面显微粗糙度增加。最后，通过磨削实验来说明超声辅助电解在线修整磨削的优点。实验结果表明，与普通电解在线修整磨削相比，去除率和加工表面质量都有所提高。