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Dependence of surface roughness on technological conditions of ultrasonic smoothing

机译：表面粗糙度对超声波平滑技术条件的依赖性

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Fatigue, corroding and tribological properties of machine parts are mostly determined by surface quality formed during finishing operations. One of the most effective ways to form the required surface is by ultrasonic smoothing. The article presents experimental results of ultrasonic surface smoothing for workpieces of two types of steels 17X18N9T and 20X1M1F1TR. The experiments were conducted on the turning lathe with the experimental ultrasonic technological complex. The variables were workpiece rotational speed, feeding speed, clamping force and ultrasonic power treatment. D-optimal plan of Hartley-Kono was used during the experiment. Dispersion-regressive analysis of the experimental data revealed the relation between the surface roughness and processing regime modes. Feeding lowering decreases the surface roughness for both steels. To decrease the surface roughness of 20X1M1F1TR steel it is necessary to increase power of ultrasonic treatment simultaneously with clamping force decrease. For steel 17X18N9T clamping force results in surface roughness lowering that is why ultrasonic power is not significant. Partial correlation coefficient analysis revealed that micro profile height for steel 20X1M1F1TR is determined by feeding speed. For austenitic steel 17X18N9T feeding speed and clamping force are equally important factors. During the experiments the surface roughness decreased from 1.5 mkm to 0,1-0,2 mkm with ultrasonic treatment, that is more than 10 times.
机译：机器部件的疲劳，腐蚀和摩擦学特性主要由在整理操作期间形成的表面质量决定。形成所需表面的最有效方法之一是通过超声波平滑。本文介绍了两种钢17X18N9T和20X1M1F1TR的工件的超声波表面平滑的实验结果。用实验超声技术复合物在转动车床上进行实验。变量是工件转速，送料速度，夹紧力和超声波功率处理。在实验期间使用了Hartley-Kono的D-Optimal计划。实验数据的分散延迟分析揭示了表面粗糙度与处理方案模式之间的关系。饲料降低降低了两个钢的表面粗糙度。为了减小20x1m1f1tr钢的表面粗糙度，需要增加超声波处理的功率，同时夹紧力减小。对于钢17x18n9t夹紧力导致表面粗糙度降低，这就是为什么超声波功率不显着。部分相关系数分析显示，通过馈送速度确定钢20x1m1f1tr的微廓形高度。对于奥氏体钢17x18n9t馈送速度和夹紧力同样重要的因素。在实验期间，表面粗糙度从1.5亿米下降至0.1-0,2兆米，超声波处理，即超过10倍。

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