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Development of Audio Frequency Vibration Microforming System
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  • Development of Audio Frequency Vibration Microforming System
  • Development of Audio Frequency Vibration Microforming System
저자명
Seo. Young-Ho,Park. Chan-Jin,Kim. Byeong-Hee,Lee. Hye-Jin,Lee. Nak-Kyu
간행물명
International journal of precision engineering and manufacturing
권/호정보
2012년|13권 5호|pp.789-794 (6 pages)
발행정보
한국정밀공학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Many researchers have developed several microforming technologies such as micro deep drawing, micro press forming, microforging, and extrusion for creating precise micropatterns on the surface of metal substrates, but they have found it difficult to avoid elastic recovery, which results in low formability and degradation of surface roughness and accuracy of three-dimensional formed profiles. The audio frequency vibration microforming system (AFV forming system) developed in this study can dramatically enhance not only the formability of metal substrates but also the accuracy of three-dimensional formed surfaces, because fast micro tramping action over a microdeformed region minimizes elastic recovery and removes several defects that occur in conventional microforming. The developed AFV system is mainly composed of a vertical hydraulic cylinder for macro movement and a vibratory tool actuated by an optimally preloaded lead zirconate titanate (PZT) stack, punches, and some structural compartments. In order to design the system optimally and determine the optimal process modes and conditions, several FEM analyses and experiments were performed. The experimental results of varying vibration schemes and processing conditions yielded the optimal process conditions and proved the validity of the developed novel microforming system.