Bańkowski Damian, Kiljan Anna, Hlaváčová Irena M, Młynarczyk Piotr
Department of Materials Science and Materials Technology, Faculty of Machatronics and Mechanical Engineering, Kielce University of Technology, al. 1000-lecia P.P. 7, 25-314 Kielce, Poland.
Department of Engineering and Biomedical Materials, Faculty of Mechanical Engineering, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland.
Materials (Basel). 2024 Dec 3;17(23):5913. doi: 10.3390/ma17235913.
The purpose of this study was to determine the effect of selected vibratory strengthening machining factors on the properties of CuZn30 brass. Vibratory strengthening machining was carried out using metal media dedicated to polishing processes, which also contributed to strengthening the treated surfaces. The test samples were cut with an abrasive water jet and recrystallized to obtain a soft microstructure. An orthogonal, two-factor five-level plan was used for the study. The effect of vibration frequency and vibratory machining time on selected changes in parameters of the geometric structure of the surface and hardness of the surface layer was determined using Statistica software version 10 (64-bit). Higher vibration frequencies for vibratory machining increased the hardness of machined surfaces by as much as 50 HV The arithmetic mean deviation of the height of surface irregularities from the reference plane, Sa, decreases with increasing the time of vibratory machining. A value of Sa = 0.168 µm was obtained after 87 min of consolidation, compared to an initial surface of S = 0.65 µm.
本研究的目的是确定所选振动强化加工因素对CuZn30黄铜性能的影响。振动强化加工使用专门用于抛光工艺的金属介质进行，这也有助于强化处理过的表面。测试样品用磨料水射流切割并再结晶以获得柔软的微观结构。本研究采用正交两因素五级方案。使用Statistica软件10版（64位）确定振动频率和振动加工时间对表面几何结构参数和表面层硬度的选定变化的影响。振动加工的较高振动频率使加工表面的硬度提高了多达50 HV。表面粗糙度相对于参考平面的高度的算术平均偏差Sa随着振动加工时间的增加而减小。在固结87分钟后获得的Sa值为0.168 µm，而初始表面的S值为0.65 µm。
