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A New Tool Holder Design with Two-Dimensional Motion for Fabricating Micro-Dimple and Groove Patterns
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  • A New Tool Holder Design with Two-Dimensional Motion for Fabricating Micro-Dimple and Groove Patterns
  • A New Tool Holder Design with Two-Dimensional Motion for Fabricating Micro-Dimple and Groove Patterns
저자명
Kurniawan. Rendi,Ko. Tae Jo
간행물명
International journal of precision engineering and manufacturing
권/호정보
2014년|15권 6호|pp.1165-1171 (7 pages)
발행정보
한국정밀공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This paper presents an elliptical vibration machining (EVM) method, which is utilized to establish a micro-dimple or groove pattern for surface texturing. The EVM has been explored extensively by the precision community to significantly improve machining performance through lower cutting force, reducing tool wear, burr suppression, extended tool life and lower surface roughness. A new design of a tool holder has been developed, yielding two-directional motions of the tool tip of about $10{mu}m$ and $30{mu}m$ in the axial and transverse directions, respectively. The tool holder design uses a four-bar flexure hinge, of which the flexure body has a first natural frequency of about 4.6 kHz according to an impact test. In this research, two piezo actuators have been driven in open-loop conditions by energizing two sinusoidal voltages from a function generator with the developed tool holder attached to a conventional computer numerical controlled (CNC) 3-axis milling machine. The micro-dimples and grooves have been successfully built using a vibration frequency of 100 Hz with various phases between $15^{circ}$ and $60^{circ}$ to verify the cutting performance of the developed tool holder.