Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Development of Digital 3D Real Object Duplication System and Process Technology

디지털 3차원 실물복제기 시스템 및 공정기술 개발

  • 이원희 (한국기계연구원 정보장비연구센터) ;
  • 안영진 (한국기계연구원 정보장비연구센터) ;
  • 장민호 ((주)솔루션닉스) ;
  • 최경현 (제주대학교 기계에너지시스템공학부) ;
  • 김동수 (한국기계연구원 정보장비연구센터)
  • Published : 2006.04.01
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Abstract

Digital 3D Real Object Duplication System (RODS) consists of 3D Scanner and Solid Freeform Fabrication System (SFFS). It is a device to make three-dimensional objects directly from the drawing or the scanning data. In this research, we developed an office type SFFS based on Three Dimensional Printing Process and an industrial SFFS using Dual Laser. An office type SFFS applied sliding mode control with sliding perturbation observer (SMCSPO) algorithm for control of this system. And we measured process variables about droplet diameter measurement and powder bed formation etc. through experiments. In case of industrial type SFFS, in order to develop more elaborate and speedy system for large objects than existing SLS process, this study applies a new Selective Dual-Laser Sintering (SDLS) process and 3-axis Dynamic Focusing Scanner for scanning large area instead of the existing f lens. In this process, the temperature has a great influence on sintering of the polymer. Also the laser parameters are considered like that laser beam power, scan speed, and scan spacing. Now, this study is in progress to evaluate the effect of experimental parameters on the sintering process.

Keywords

References

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