• Title/Summary/Keyword: Laser machining

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Laser Beam Application and Technology in Micro Machining (레이저 빔 응용 기술)

  • 윤경구;이성국;김재구;신보성;최두선;황경현;박진용
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.7
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    • pp.27-35
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    • 2000

  • 재료가공분야에의 레이저의 적용은 1960년대 후반부터 시작되었으며, 고출력 CO$_2$ 와 Nd:YAG 레이저가 많은 산업분야에서 보편화될 정도로 발전하여 왔다. 재료가공에서의 레이저의 적용분야는 금속의 절단, 용접 및 드릴링, 세라익의 스크라이빙, 플라스틱과 복합재의 절단 및 여러 가지 재료의 마킹 등을 포함한다. 이와 같은 모든 응용에서 공통적인 것이 레이저 조사에 의해 재료를 용융, 증발시키는 열적 메카니즘이다.(중략)

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Current Trends of Vibration-Assisted Machining in Micro/Nano Scales (초정밀 진동 보조 가공 연구 동향)

  • Lee, Moon-Gu;Jeon, Yong-Ho
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.8
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    • pp.834-839
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    • 2012

  • Recently, mechanical components with miniaturized size, complex shape and fine surface are on demand from industries such as mobile electronics, medical devices and defense. The size of them is smaller than several millimeters, the shape has micro-holes, curve, or multi-step and the surface is mirror-like. This features are not able to be machined with the conventional machining, therefore electro-discharge machining (EDM), cutting, and laser machining have been applied. If the technologies are assisted by vibration, high aspect ratio and good surface are to be achieved. In this paper, prior and current researches of vibration-assisted machining are reviewed. Machining mechanisms with vibration-assisting are explained, their effects are shown, and vibrating apparatuses are discussed. Especially, comparison between with and without vibration assisting is presented. This review shows the vibration-assisted machining is effectively fabricate the components with small and complicated shape and fine surface finish.

  • https://doi.org/10.7736/KSPE.2012.29.8.834 인용 PDF KSCI