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A Novel 3-D Braiding Technology, Complex Shape Preforms and Composites

[+] Author Affiliations
Alexander Bogdanovich, Dmitri Mungalov

3TEX, Inc., Cary, NC

Paper No. IMECE2002-39478, pp. 31-35; 5 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Textile Engineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Textile Engineering Division
  • ISBN: 0-7918-3651-7 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


A brief overview of 3-D braiding technology and its two major branches, “row and column” and “rotary” braiding, opens the paper. An innovative 3-D braiding process that has been recently patented and implemented in a fully automated multi-modular industrial scale machine is introduced next. The machine enables producing complex, continuously variable shape preforms for composite structures. Each module of the machine incorporates some number of horngears with four yarn carriers placed on each of them. A novel gate switch mechanism, based on the gripping fork controlled rotation, provides smooth transfer of yarn carriers between adjacent horngears. Each gripping fork is controlled individually, thus allowing fabricating practically unlimited variety of complex cross section 3-D braided preforms. Examples of manufactured braided products include rectangular bars, T-, I- and J-stiffeners, box-beams, hollow tubes, etc. Results and discussion of mechanical characterization of 3-D braided carbon and E-glass composites conclude the paper.

Copyright © 2002 by ASME



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