Methods and systems for manufacturing a structure having organized areas
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United States of America Patent
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Jan 17, 2012
Grant Date -
Jul 24, 2008
app pub date -
Dec 10, 2007
filing date -
May 17, 2001
priority date (Note) -
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Abstract
A beaded preform includes a plurality of adjacently positioned beads for forming a plurality of voids in an engineered material. The beaded preforms may be comprised of a filaments (single strand of beads) and mats (two-dimensional and three dimensional arrays of beads). The filaments and mats may be coated to become tows and laminates, respectively, which may then be assembled into composite materials. The preforms may be produced using novel manufacturing apparatuses and methods, and incorporated into known manufacturing processes to produce porous structures, including stress-steering structures, in any material including metals, plastics, ceramics, textiles, papers, and biological materials, for example. Permanent bead material is preferably made of polyacrylonitrile, carbon fiber, or graphite.
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