Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Machining of Repetitive Micro Patterns using Oscillation Micro Milling

진동 마이크로 밀링을 이용한 미세 반복 패턴 가공 기술 연구

  • Ro, Seung-Kook (Division of Advanced Manufacturing System Research, Korea Institute of Machinery and Materials) ;
  • Khim, Gyungho (Division of Advanced Manufacturing System Research, Korea Institute of Machinery and Materials) ;
  • Park, Jong-Kweon (Division of Advanced Manufacturing System Research, Korea Institute of Machinery and Materials)
  • 노승국 (한국기계연구원 첨단생산장비연구본부) ;
  • 김경호 (한국기계연구원 첨단생산장비연구본부) ;
  • 박종권 (한국기계연구원 첨단생산장비연구본부)
  • Received : 2014.03.24
  • Accepted : 2014.04.28
  • Published : 2014.05.01
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Abstract

This paper introduces a system to machine micro-sized patterns effectively on surface based on micro-milling process using tools with simultaneous rotation and oscillation, oscillation micro milling. To review the effectiveness of proposed concept, we integrated a micro-spindle supported by active magnetic bearings with a precision 3-axis air bearing stage using double-wedge mechanism, and tested this oscillation milling. Two types of oscillation milling were tested, which are linear oscillation milling with a flat end mill and elliptical oscillation milling with a ball end mill with 0.3 mm of diameter. The spindle was rotating 110 krpm and workpiece was moving constant speed of 2~8 mm/sec during the oscillation milling. As the results, multiple oval shape dimples were generated in regular spacing, and the variation of elliptical motion made different shapes of patterns. The results showed that proposed oscillation milling can be successfully used for machining repeated micro-patterns.

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References

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