Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Accuracy Improvement of Dual Micro Patterns Using Magnetic Abrasive Deburring

자기 디버링을 이용한 복합 미세패턴의 형상 정밀도 향상

  • Jin, Dong-Hyun (Dept. of Mechanical Engineering, Pukyong Nat'l Univ.) ;
  • Kwak, Jae-Seob (Dept. of Mechanical Engineering, Pukyong Nat'l Univ.)
  • 진동현 (부경대학교 기계공학과) ;
  • 곽재섭 (부경대학교 기계공학과)
  • Received : 2016.01.21
  • Accepted : 2016.09.09
  • Published : 2016.11.01
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Abstract

In recent times, the requirement of a micro pattern on the surface of products has been increasing, and high precision in the fabrication of the pattern is required. Hence, in this study, dual micro patterns were fabricated on a cylindrical workpiece, and deburring was performed by magnetic abrasive deburring (MAD) process. A prediction model was developed, and the MAD process was optimized using the response surface method. When the predicted values were compared with the experimental results, the average prediction error was found to be approximately 7%. Experimental verification shows fabrication of high accuracy dual micro pattern and reliability of prediction model.

최근, 산업에서는 미세패턴의 효과가 입증됨에 따라 미세패턴에 대한 연구가 활발히 진행되고 있다. 그러나, 이러한 연구들은 단일 패턴에 집중되어있으며, 복합 미세패턴의 제작 및 디버링에 관한 연구는 부족한 실정이다. 따라서, 본 연구에서는 원통형 공작물에 복합 미세패턴을 제작하고, 자기 디버링을 이용하여 디버링을 실시하였다. 또한, 반응표면법을 이용하여 패턴의 높이에 대한 예측모델을 도출하고, 자기 디버링 공정을 최적화하였다. 그 결과, 패턴의 높이에 대한 예측값과 실험값을 비교하였을 때, 평균적으로 7%의 오차가 발생하는 것을 확인하였다. 또한, 검증실험을 통하여 형상 정밀도가 우수한 복합 미세패턴의 제작이 가능하고, 예측모델이 신뢰성이 있음을 알 수 있었다.

Keywords

Acknowledgement

Supported by : 부경대학교

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