Theoretical Analysis and Experimental Characterization of DoD Metal-Jet System

DoD 메탈젯 시스템의 이론적 해석 및 실험적 분석

  • 이택민 (한국기계연구원 정보장비연구센터) ;
  • 강태구 (한국기계연구원 정보장비연구센터) ;
  • 양정순 (한국기계연구원 정보장비연구센터) ;
  • 조정대 (한국기계연구원 정보장비연구센터) ;
  • 김광영 (한국기계연구원 경남기계기술지원단) ;
  • 최병오 (한국기계연구원 지능형정밀기계연구본부) ;
  • 김동수 (한국기계연구원 정보장비연구센터)
  • Published : 2007.01.01


In this paper, we present a design, analysis, fabrication and performance test of the novel DoD metal-jet system for application to the high-density and high-temperature-melting materials. The theoretical analysis of the metal-jet nozzle system is derived by using electro-mechanical analogy. Based on the theoretical analysis results, we design the metal-jet print head system and fabricate the metal-jet system, which can eject the droplet of lead-free metal solder in high-temperature. In the experimental test, we set up the test apparatus for visualization of the droplet ejection and measure the ejected droplet volume and velocity. As a result, the diameter, volume and the velocity of the ejected droplet are about 65 $\mu$m $\sim$ 70 $\mu$m, 145p1 $\sim$ 180 pl and 4m/s, which shows quite good agreement with the theoretical analysis results of the 75 $\mu$m-diameter and 220 pl-volume of droplet. In comparison with the experimental result, the errors of diameter and volume are 7% $\sim$ 13% and 18 $\sim$ 34%, respectively.


Metal-Jet;DoD Injector;Inkjet;Printing;Solder-Jet


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