• Title/Summary/Keyword: 직조금속망

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Basic Study in Fabrication and Mechanical Characteristics of Ultra Light Inner Structured and Bonded(ISB) Panel Containing Perpendicularly Woven Metal (수직방향 직조 금속망을 이용한 초경량 금속 내부구조 접합판재의 제작 및 특성에 관한 기초 연구)

  • Jung Chang Gyun;Yoon Seok-Joon;Yang Dong-Yol;Lee Sang Min;Na Suck-Joo;Lee Sang-hoon;Ahn Dong-Gyu
    • Journal of the Korean Society for Precision Engineering
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    • v.22 no.5 s.170
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    • pp.152-158
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    • 2005
  • Inner structured and bonded panel, or ISB Panel, as a kind of sandwich type panel, has metallic inner structures which have low relative density, due to their dimensional shape of metal between a pair of metal skin sheets or face sheets. Previous works showed that ISB panels containing inner structures formed as repeated pyramidal shapes saved weight up to $60\%$ in condition of same stiffness comparing with solid sheet. In this work, woven metal is adapted to inner structures replacing pyramidal structures. The test specimens of ISB panel containing woven metal made by multi-point electric resistance welding and 3-point bending test have been carried out. The results of experiments and comparisons of process parameters, stiffness and failure mode are discussed.

Design and Construction of a Loom for Obtaining Ultra-Light Metal Structure (초경량 금속 구조재 직조장치의 설계 및 제작)

  • Kim, Pan-Su;Kang, Ki-Ju
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.34 no.9
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    • pp.1235-1240
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    • 2010
  • Wire-woven Bulk Kagome (WBK) is fabricated by assembling helically formed wires in six directions. To date, WBK samples have been assembled manually. For industrial application, the assembly process must be automated. Furthermore, if WBK is to be fabricated using flexible wires that cannot maintain their helical shape during fabrication, a specialized automatic machine, i.e., a loom needs to be developed. In this work, we designed and constructed a loom for fabricating WBKs using flexible wires. This loom is operated by one rotation of the upper plate, two translations of the insertion device, and insertion of wires. So-called "comb devices" are placed between multiple layers of Kagome nets to prevent the wires that are already in place from getting entangled with those that are being inserted. This loom can be also used to fabricate semi-WBKs composed of helically formed wires and rigid straight wires.