• Title/Summary/Keyword: 마이크로 박벽 구조물

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Rapid Manufacturing of Microscale Thin-walled Structures by Phase Change Workholding Method (상변화 고정방식에 의한 마이크로 박벽 구조물의 쾌속제작)

  • Shin, Bo-Sung
    • Journal of the Korean Society for Precision Engineering
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    • v.22 no.9
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    • pp.188-193
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    • 2005
  • To provide the various machining materials with excellent quality and dimensional accuracy, high -speed machining is very useful tool as one of the most effective rapid manufacturing processes. However, high-speed machining is not suitable for microscale thin-walled structures because of the lack of the structure stiffness to resist the cutting force. A new method which is able to make a very thin-walled structure rapidly will be proposed in this paper. This method is composed two processes, high-speed machining and filling process. Strong workholding force comes out of the solidification of filling materials. Low-melting point metal alloys are used in order to minimize the thermal effect during phase change and to hold arbitrary shape thin-walled structures quickly during high-speed machining. To verify the usefulness of this method, we will show some applications, for examples thin -wall cylinders and hemispherical shells, and compare the experimental results to analyze the dimensional accuracy of typical parts of the structures.