• Title/Summary/Keyword: 2D vibrational micro milling

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Micro Milling using High Frequency 2-dimensional Vibration (2차원 고주파 진동을 이용한 미세 밀링가공)

  • Kim, Gi Dae
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.9 no.6
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    • pp.66-70
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    • 2010
  • Using two piezoelectric materials orthogonally arranged, 2-dimensional(2D) vibration in a excitation workpiece table was generated. In this study, micro milling using high frequency 2D vibration was proposed, whose locus of cutting tool is combined with original trochoid locus of milling tool and 2D elliptical locus of excitation table. From the cutting results of 2D vibrational micro milling of nickel alloy, it was observed that the machining quality and the roughness of machined surface were enhanced compared to conventional milling in a side cutting whose immersion ration is relatively low, whereas there was little betterment in a slot cutting.

Development of Excitation Table for 2-dimensional Vibrational Micro Cutting (2차원 진동 미세가공을 위한 가진테이블 개발)

  • Kim, Gi-Dae;Lee, Kang-Hee
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.11 no.3
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    • pp.62-67
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    • 2012
  • To realize 2-dimensional vibrational micro cutting in milling and drilling, etc. where the tools rotate, it could be a promising way to vibrate a workpiece instead of a rotating tool itself. In this study, an excitation work-table was developed using two piezoelectric materials orthogonally arranged. The trochoidal trajectory of a cutting tool which is necessary for 2D vibrational cutting is enabled in the excitation condition of higher excitation frequency and larger amplitude of vibration and the cutting condition of smaller diameter of cutting tool and lower spindle speed. The various trochoidal trajectories of a cutting tool could be generated in the excitation work-table by adjusting the input voltages to two piezoelectric materials and the phase between the two voltages and the trajectories could be readily used for the 2D vibrational micro cutting.