• 제목/요약/키워드: 3 차원 곡면 프린팅

검색결과 2건 처리시간 0.017초

압축성 유동해석에 기초한 곡면 세정을 위한 브라스팅 광폭 노즐의 설계 및 성능시험 (Design and Performance Test of Wide Blasting Nozzle for Curved Surface Cleaning based on Compressible Flow Analysis)

  • 김태형;곽준구;손명환
    • 에너지공학
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    • 제28권1호
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    • pp.57-64
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    • 2019
  • 본 연구에서는 산업용 발전설비 부품의 곡면을 표면처리 하기 위한 브라스팅 노즐을 설계한 후 압축성 유동해석을 통해 분사 성능을 살펴보았다. 이때 곡면 노즐의 출구는 부품의 표면을 따라 곡면으로 설계되었다. 3차원 프린팅으로 노즐을 제작한 후 실린더형 시편의 표면에 연마재를 분사하여 세정 성능시험을 수행하였다. 해석 후 얻은 유효 세정 면적과 실험 후 얻은 유효 세정 면적의 크기와 형상이 유사하였으며 이로부터 곡면형 노즐 설계의 타당성 및 실효성을 확인하였다.

3 차원 곡면에 정밀 인쇄를 위한 공정 변수에 따른 이미지 보정에 관한 연구 (A study of correction dependent on process parameters for printing on 3D surface)

  • 송민섭;김효찬;이상호;양동열
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.749-752
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    • 2005
  • In the industry, three-dimensional coloring has been needed for realistic prototype from rapid prototyping. Z-corporation developed a 3D printer which provides three-dimensional colored prototype. However, the existing process cannot be adopted to models from other rapid prototyping process. In addition, time and cost for manufacturing colored prototype still remain to be improved. In this study, a new coloring process using ink-jet head is proposed for color printing on three-dimensional prototype surface. Process parameters such as the angle and the distance between ink-jet nozzle and the three-dimensional surface should be investigated from experiments. The correction matrix according to sloped angle to minimize the distortion of 2D image was proposed by analysis of printing error. Therefore, approximated method for angle and discrete length according to the radius of curvature for printing on the curved surface was proposed. By printing image on the doubly curved surface, the method was verified. As a practical example, helmet was chosen for printing images on the curved surface. The character images were applied with approximated method for angle and discrete length and was printed on the helmet surface.

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