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<p>The design and operational characteristics of a&#xa0;vibratory finishing machine with an electromagnetic drive are considered. The influence of the vibration excitation amplitude and frequency, as well as the grain size of the paste and the lapping process duration, on the roughness of flat surfaces of parts (flanges) made of Steel&#xa0;20 is studied. The roughness of the machined surfaces inversely depends on the amplitude and frequency of oscillations, and the machining process time. At the same time, the intensity of lapping decreases nonlinearly with machining time increase, while an increase in the amplitude and frequency of the vibration excitation contributes to the intensification of the lapping process in an almost linear manner. Reduction of the roughness and obtaining higher finish classes of the machined surface is ensured by using lapping pastes of smaller grain sizes. In general, the design of the vibratory finishing machine discussed in this article, used for lapping flat surfaces of parts (flanges) made of Steel&#xa0;20, allows achieving a&#xa0;minimum roughness within 0.1–0.2 μm.</p>

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The influence of vibration lapping parameters of flat surfaces on their roughness

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • V. S. Trush,
  • V. M. Korendiy,
  • O. Yu. Kachur,
  • V. M. Zakharov,
  • K. V. Trush,
  • T. M. Kravchyshyn

摘要

The design and operational characteristics of a vibratory finishing machine with an electromagnetic drive are considered. The influence of the vibration excitation amplitude and frequency, as well as the grain size of the paste and the lapping process duration, on the roughness of flat surfaces of parts (flanges) made of Steel 20 is studied. The roughness of the machined surfaces inversely depends on the amplitude and frequency of oscillations, and the machining process time. At the same time, the intensity of lapping decreases nonlinearly with machining time increase, while an increase in the amplitude and frequency of the vibration excitation contributes to the intensification of the lapping process in an almost linear manner. Reduction of the roughness and obtaining higher finish classes of the machined surface is ensured by using lapping pastes of smaller grain sizes. In general, the design of the vibratory finishing machine discussed in this article, used for lapping flat surfaces of parts (flanges) made of Steel 20, allows achieving a minimum roughness within 0.1–0.2 μm.