Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A study on the Surface Improvement of Fine-Micro Needles Applying Electrochemical Polishing

전해연마를 적용한 미세 마이크로 니들의 표면 향상에 대한 연구

  • Jung, Sung-Taek (Department of Mechanical Convergence Engineering, Induk University) ;
  • Kim, Hyun-Jeong (Department of Mechanical Convergence Engineering, Induk University) ;
  • Wi, Eun-Chan (Department of Mechanical Convergence Engineering, Induk University) ;
  • Kong, Jung-Shik (Technology for Your Life Co., Ltd.) ;
  • Baek, Seung-Yub (Department of Mechanical Convergence Engineering, Induk University)
  • 정성택 (인덕대학교 융합기계공학과) ;
  • 김현정 (인덕대학교 융합기계공학과) ;
  • 위은찬 (인덕대학교 융합기계공학과) ;
  • 공정식 ((주)티포엘) ;
  • 백승엽 (인덕대학교 융합기계공학과)
  • Received : 2019.09.20
  • Accepted : 2019.09.30
  • Published : 2019.09.30
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Abstract

As the consumer market in the mold, automation and aerospace industries grows, the demand for chemical machining using on electrochemical polishing increases. To enhance the surface roughness and gloss of the micro-needle, we have studied for an electrochemical polishing. Electrochemical polishing requires the chemical reaction of solution and material according to the electrolyte and electrode. In this study, sulfuric acid(30%), phosphoric acid(50%), and DI-water(20%)were used as the electrolytic solution, and the electrolytic solution temperature used $58^{\circ}C$. Electrochemical polishing was carried out in experimental conditions, and the micro-needle experiment was carried out from the basic experiment to obtain the experimental conditions. Experimental results show that as the voltage and current increase, the surface roughness improved and the gloss is improved. So, the best result for this experiment was obtained in condition 6, which improved micro-needle.

Keywords

References

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