Juniewicz Mateusz, Plichta Jarosław, Sutowska Marzena, Łukianowicz Czesław, Kukiełka Krzysztof, Zawadka Wojciech
Department of Production Engineering, Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15-17, 75-620 Koszalin, Poland.
Materials (Basel). 2022 Sep 29;15(19):6762. doi: 10.3390/ma15196762.
This article presents the results of experimental studies of the centrifugal disc finishing (CDF) process of 304 steel elements with the use of an active workpieces holder, that allows workpieces for additional rotational and oscillation movements. The main aim of the research was to evaluate the mechanism of formation of the surface texture and to assess the intensity and effectiveness of the machining process. It is shown that additional movements of the workpiece significantly affect the formation of the machining traces generated by the elementary phenomena of micro-cutting, scratching, grooving, etc. As a result, these combined and complex interactions lead to the formation of the surface topography of the workpieces. Based on the research results, it can be concluded that the use of an active workpiece holder in the CDF process allows changes in the intensity of the machining process. Moreover, the active holder allows modification of the surface smoothing process. The intensity of the treatment process depends primarily on the location of the workpiece holder in the appropriate energy area of the work charge. On the other hand, the efficiency of the workpiece surface smoothing depends on the parameters of the oscillation and rotational movements of the workpiece mounted in the active holder. The presented research results show that the use of an active holder, enabling rotation and oscillation of the workpiece, may lead to a more effective use of smoothing processes in CDF machines. The analysis of the results shows that the values of the and parameters are more strongly dependent on the vibration frequency and increase with its increasing frequency. This is undoubtedly the result of the concentration of smoothing marks on the smoothed surface. However, with regard to the rotational speed of the object, this relationship is non-monotonic, and its greatest influence occurs at its intermediate values. It follows that this activity does not have a significant impact on the generation of the number of smoothing marks and the degree of their concentration. The research methodology proposed in the work allows the initial determination of the dependence of the results of the CDF process on the machining parameters, including the parameters of the active holder. This methodology can also be used for machining materials other than AISI 304 steel.
本文介绍了使用主动式工件夹具对304钢零件进行离心盘光整加工（CDF）过程的实验研究结果，该夹具可使工件进行额外的旋转和振荡运动。研究的主要目的是评估表面纹理的形成机制，并评估加工过程的强度和有效性。结果表明，工件的额外运动显著影响由微切削、刮擦、开槽等基本现象产生的加工痕迹的形成。因此，这些组合且复杂的相互作用导致了工件表面形貌的形成。基于研究结果，可以得出结论，在CDF过程中使用主动式工件夹具可改变加工过程的强度。此外，主动式夹具可改变表面光整过程。处理过程的强度主要取决于工件夹具在工作装料的适当能量区域中的位置。另一方面，工件表面光整的效率取决于安装在主动式夹具中的工件的振荡和旋转运动参数。所呈现的研究结果表明，使用能够使工件旋转和振荡的主动式夹具，可能会使CDF机床中的光整过程得到更有效的利用。结果分析表明， 和 参数的值更强烈地依赖于振动频率，并随频率增加而增大。这无疑是由于光整痕迹集中在光整表面上的结果。然而，对于物体的转速，这种关系是非单调的，并且在中间值时影响最大。由此可见，这种活动对光整痕迹数量的产生及其集中程度没有显著影响。该工作中提出的研究方法允许初步确定CDF过程的结果对加工参数（包括主动式夹具的参数）的依赖性。该方法也可用于加工除AISI 304钢以外的材料。
