• 제목/요약/키워드: Abrasive jet

검색결과 74건 처리시간 0.03초

워터젯 수압분사와 화염버너에 의한 석판재 표면처리의 품질특성 비교연구 (Comparison Study on Quality Characteristics of Surface Treatment of Stone Board Materials by Water-jet System and Flame-burner)

  • 강지호;장명환
    • 대한안전경영과학회지
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    • 제5권1호
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    • pp.115-128
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    • 2003

  • To comparison the surface treatment methods of stone board materials, the results of Dorry's abrasive test were 23.4 for water-jet system and 18.9 for flame-burner system. Therefore abrasive hardness, the stone board materials by the water-jet system was greater than one by flame-jet system. As a result of Shore's hardness test, the stone board materials by water-jet system was twice greater than one by flame-jet system. Authors carried out microscopic observation to survey a defection of the composition minerals for two methods, but all of the both methods have not founded a defection. Therefore, the stone board materials by water-jet system was greater durability than one by flame-jet for the surface treatment methods.

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미세입자 분사가공을 위한 3 차원 임의형상 모재용 마스크 모델링 (Mask Modeling of a 3D Non-planar Parent Material for Micro-abrasive Jet Machining)

  • 김호찬;이인환;고태조
    • 한국정밀공학회지
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    • 제27권8호
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    • pp.91-97
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    • 2010

  • Micro-abrasive Jet Machining is one of the new technology which enables micro-scale machining on the surface of high brittle materials. In this technology it is very important to fabricate a mask that prevents excessive abrasives not to machine un-intend surface. Our previous work introduced the micro-stereolithography technology for the mask fabrication. And is good to not only planar material but also for non-planar materials. But the technology requires a 3 dimensional mask CAD model which is perfectly matched with the surface topology of parent material as an input. Therefore there is strong need to develop an automated modeling technology which produce adequate 3D mask CAD model in fast and simple way. This paper introduces a fast and simple mask modeling algorithm which represents geometry of models in voxel. Input of the modeling system is 2D pattern image, 3D CAD model of parent material and machining parameters for Micro-abrasive Jet Machining. And the output is CAD model of 3D mask which reflects machining parameters and geometry of the parent material. Finally the suggested algorithm is implemented as software and verified by some test cases.

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