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Conductive technical textiles
TIBTECH Innovations (Bondues, France) acquainted booth visitors with its
capabilities in conductive, heated and optical fber structures. Applications for
TIBTECH materials include fexible heating and cooling grids for mold tooling as
well as de-icing and fexible con-
ductive grids for radio frequency
identifcation (RFID) tracking
and/or sensing, structural health
monitoring (SHM) and electro-
magnetic interference (EMI)
shielding. Products include TIB-
GRID electro-heating grid (see
photo), TISSGRID woven electro-
heating grid, TIBLOX micropo-
rous, ultralow-density stainless membranes or paper, TIBSHIELD or TIBMESH
electromagnetic shielding layers, THERMOTECH fexible electro-heating yarns,
THERMOSTRETCH heating grid, which can be conformed to complex shapes or
silicone vacuum heating pockets, and CONDURODS fexible electro-conductive
glass composite rods. www.tibtech.com
Universal ultrasonic cutting tools
Geiss LLC (Durham, Conn.) has developed a one-piece sonotrode and cutter
for cutting and shaping a broad range of honeycomb core materials includ-
ing paper, Nomex, aluminum and stainless steel. This optional feature for
integration into Geiss CNC machines can include a range of knife blades
and rotating disks. Stored in a tool-changing magazine and automatically
exchanged during the programmed machining sequence, tool changeover is
quick and easy within a single part program. Ultrasonic core-cutting tools re-
portedly achieve extreme accuracy without producing dust or waste material.
Geiss has also designed a dust extraction system for use with conventional
routing methods. Applicable to a broad range of materials, this system is espe-
cially benefcial with carbon and glass fber reinforced materials, allowing ef-
fective dust collection and control because it is integrated at the milling spindle
where the dust is produced. www.geissllc.com
Conductive nonwoven fabrics
Norafn Industries GmbH (Mildenau, Germany) exhibited its heatable non-
woven materials made of conductive fbers. Through a joint R&D; project with
German partners Latzsch GmbH Kunststoffverarbeitung (Thierbach), Kompe-
tenzzentrum Stukturleichtbau e.V. (Chemnitz) and IMM Gruppe (Mittweida),
Norafn has demonstrated heated tooling made with its conductive nonwovens
using 48V through-voltage that reportedly can maintain temperatures up to
180°C/356°F with a tolerance of ±2°C across the mold surface. Other benefts
include heating time of less than one minute, drapability that allows complex
shapes and easy integration into tool fabrication. Norafn claims this technology
can reduce overall curing cycle times. www.norafn.com
Benefts:
• Removes off of cured
laminate easier,
saving time.
• Easier to remove in a
single piece, reducing
rework.
• Leaves a textured
laminate surface,
reducing time spent
hand fnishing before
painting or bonding.
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