ABSTRACT

In this research, the effect of ultrasonic vibrations in the turning process on geometric tolerances has been investigated. This has always been one of the most important challenges in the production of high-quality and precision parts. One of the important applications of the turning process is making parts with high dimensional accuracy. In this study, by applying ultrasonic vibrations to different machining parameters, we investigated the surface quality, runout, total runout, and straightness tolerance of a 2024-T6 aluminum workpiece. In the second stage, the effect of the presence of ultrasonic vibrations was investigated. The full factorial experiment design method was used, and 18 experiments were performed with this method. After that, the results were analyzed, and they are as follows. Compared to other machining parameters, the cutting speed has the highest effect on the runout, total runout, straightness tolerance, and surface roughness. Ultrasonic vibrations reduce all four output parameters of runout, total runout, straightness tolerance, and surface roughness. In particular, the surface roughness in ultrasonic turning decreased compared to conventional turning. Also, the formation of chips was investigated. This technique is suitable in manufacturing industries that require high dimensional accuracy.

摘要

在这项研究中，研究了车削过程中超声波振动对几何公差的影响。这一直是生产高质量和精密零件的最重要挑战之一。车削工艺的重要应用之一是制造具有高尺寸精度的零件。在这项研究中，通过将超声波振动应用于不同的加工参数，我们研究了 2024-T6 铝工件的表面质量、跳动、总跳动和直线度公差。在第二阶段，研究了超声波振动存在的影响。采用全析因试验设计方法，用该方法进行了18个试验。之后，对结果进行了分析，结果如下。与其他加工参数相比，切削速度对跳动、总跳动、直线度公差和表面粗糙度的影响最大。超声波振动降低了跳动、总跳动、直线度公差和表面粗糙度这四个输出参数。特别是，与传统车削相比，超声波车削的表面粗糙度降低。此外，研究了芯片的形成。这种技术适用于需要高尺寸精度的制造行业。研究了芯片的形成。这种技术适用于需要高尺寸精度的制造行业。研究了芯片的形成。该技术适用于需要高尺寸精度的制造行业。