대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제25권8호
  • /
  • Pages.1021-1029
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  • 2001
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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신속 시작법용 액적 생성 장치에서의 액적 생성에 대한 연구

A Study on the Drop Formation of the Liquid Jet Device for Rapid Prototyping

  • Lee, U-Il (Dept.of Mechanical Aerospace Engineering, Seoul National University) ;
  • Kim, Seon-Min (Dept.of Mechanical Aerospace Engineering, Graduate School of Seoul National University) ;
  • Park, Jong-Seon
  • 발행 : 2001.08.01
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초록

Rapid prototyping(RP) is a novel technology to create 3D products directly from CAD system. This study proposes a new RP method which uses the PZT ceramic plate to make a Drop-On-Demand liquid jet from the nozzle. The characteristic of drop formation in the new system is investigated both numerically and experimentally. The optimal drop for 3-D Printing can be obtained by the proper amplitude and frequency of the applied voltage. Also the process of the drop formation is analyzed using the pressure wave theory and verified by numerical simulation. First, the pressure wave generated by the deformation of the Piezo-plate at the nozzle is analyzed by solving the 2D axisymmetric wave equation via Finite Element Method. Finally, the drop formation process is simulated using a commercial software, FLOW 3D considering the pressure at the nozzle obtained by solving the wave equation as the boundary condition.

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참고문헌

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