• Title/Summary/Keyword: Rapid Foam Shaping

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A study of development of Rapid Foam Shaping process using hot tool (열 공구를 이용한 쾌속 폼 가공 공정 개발에 관한 연구)

  • 김효찬;이상호;송민섭;양동열;박승교
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.55-59
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    • 2004
  • Recently, life cycle and lead-time of products have been shortened with the demand of customers. Therefore, it is important to reduce time and cost at the step of manufacturing trial molds. In order to realize three dimensional shape on CAD, the machining process has been widely used because it offers practical advantages such as precision and versatility. However, traditional machining process spends a lot of time in cutting product and the remained material causes trouble such as inconvenience for clean. In this work, a new machining process using the hot tool has been proposed to overcome those limitations. In the process, the hot tool moves the predetermined path and the heat of the tool decomposes the remained material. In order to set up the process, the hot tool to satisfy requirements is designed and the material thermal properties are obtained using the DSC and TGA machine. The relationships between process parameters and thermal radius of the tool are obtained through experiment.

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Investigation into Net-Shape Manufacturing of Three-Dimensional Parts by using RP and RT (쾌속 조형과 쾌속 툴링을 이용한 3차원 제품의 정형 가공에 관한 연구)

  • Ahn D. G.;Lee S. H.;Kim K. D.;Yang D. Y.;Park S. K.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2001.05a
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    • pp.16-19
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    • 2001
  • Rapid Prototyping (RP) and Rapid Tooling (RT) were introduced to reduce time-to-market and cost by shortening not only the development phase but also the production phase of the manufacturing process. RP generally builds up a prototype layer by layer, rapidly generating a fully three-dimensional free form shape. RT enables the manufacture of production tools. The integration of RP and RT has the potential for rapid net shaping of thee-dimensional parts, which have geometrical complexity. In this study, net shaping techniques for making three-dimensional parts using RP and RT are described and a sample part are shown. A three-dimensional metal part is manufactured by a new RP process, Variable Lamination Manufacturing by using Expandable Polystyrene Foam (VLM-S), and its application to RT for making a clover punch. In addition, we discussed the technology fusion between metal forming md RP/RT.

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