Read More - Hexcel.com

MARCH 2014
Summary
Stand F30 Hall 7-3
HexPly® M77®
P.4
HexPly® M92
P.3
HexTow® HM63
P.2
HexPly® M79
P.5
HexForce® NCF
P.5
HiTape®
P.6&7
As the Composites world congregates
again at Paris this Spring at the
JEC Europe show (11-13 March) the
hall location may be different but the
innovative spirit at Hexcel is the same.
Our products are “the strength within”
some of the most technically advanced
composite structures in the world – some
of these applications are reflected in the
posters that you will see around the show
site. We thank our customers for their
support with this campaign.
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Hexcel launches HexTow® HM63
High Modulus Carbon Fibre
Hexcel is adding to its extensive range of IM
and AS carbon fibres by introducing a new
High Modulus carbon fibre at JEC 2014. This
new fibre has the highest tensile strength of
any available HM fibre and provides superior
interlaminar shear and compression shear
strength in a composite structure.
The graph below shows the mechanical performance
provided by HexTow® HM63 in conjunction with
HexPly® 8552 resin system for aerospace prepregs.
The red line shows how the Hexcel product outperforms
the leading competitor product.
HexTow® HM63 is a continuous, high performance,
high modulus, PAN based carbon fibre, available in
12,000 (12K) filament count tows.
The carbon fibre has been surface treated and sized to
improve interlaminar shear, handling characteristics and
structural properties.
HexTow® HM63 is ideal for high stiffness and strengthcritical applications including Space, UAV, Commercial
Aerospace, Satellites and Helicopters. It also meets the
special requirements for premium sports and recreation
applications including F1 cars, marine craft, bikes and
fishing rods.
NEW HexPly® M92 125°C versatile curing
epoxy prepreg for aerospace structures
Low cure
Exotherm
High Wet Tg
REACH
Compliant
Flame
retardant
Self
Adhesion
to Core
Long
tack/out
Life
Process
optimised
for low cost
Toughness
HexPly® M92 combines all the key benefits achieved individually
with other 125°C curing epoxy resins, in one new system with no
compromise: very good hot-wet performance, high toughness,
self-adhesion, fire resistance and long out/tack life.
This multi-tasking system has elevated hot wet Tg
performance, allowing HexPly® M92 to operate at
higher service temperatures, while still benefiting from
the lower cost 125°C cure. HexPly® M92 is available
in a wide range of prepreg forms (woven and UD tape).
system with fire resistance, making it suitable for aircraft
interiors. The system also benefits from a long tack life
and out life, making it user-friendly and it can be cured
under vacuum pressure only.
HexPly® M92 is self-adhesive and therefore optimized
for sandwich structures as well as monolithic
components. It is a high toughness, low exotherm
Typical HexTow® HM63 Tow Data
Tensile Strength
Tensile Modulus
Tensile Strain
Weight/Length
Density
680-ksi (4688-Mpa)
64.0-Msi (441-GPa)
1,00%
0.417-g/m
1.83-g/cm3
Key HexPly® M92 Data
Tensile Strength
Tensile Modulus
Tensile Strain at break
Cured Density
2
60 MPa
2.7 GPa
2,45%
1.19 g/cm3
ISO R527 type 1
ISO R527 type 1
ISO R527 type 1
6
3
Automate your Production
with HexPly® M77 2-Minute
Cure Prepreg
Hexcel has developed a number of composite
solutions for series production in automotive and
sports equipment industries including a range of
products and processes for the compression moulding of
high performance composite parts.
HexForce® Advanced NCF Reinforcements
for Aerospace
Hexcel has developed a range of
very high performance non-crimp
fabrics (NCF) for Aerospace made
with HexTow® carbon fibre.
Our NCF technology has elevated the overall
performance of carbon reinforcements to meet the
requirements for aircraft structures, including impact
performance.
When used with widely qualified HexFlow® RTM6 resins,
HexForce® NCF fabrics provide a reliable route for the
development and low cost manufacture of aerospace
structures made by Out of Autoclave Technologies
(RTM & Vacuum Infusion)
HexPly® M77 is a rapid curing epoxy prepreg system
that enables automotive parts and sports equipment
to be manufactured by press in a 2 minute cure cycle
at 150°C (80 bar pressure). The gel time is sufficient
to allow the resin to flow into the mould cavities to
produce the precise geometries required for automotive
structures. Two other benefits add to the appeal of this
product. The low tack of M77 enables the prepreg to be
cut into layers by laser, oriented and consolidated into
a flat preform via an automated process. An additional
advantage is the very long shelf life of 6 weeks at room
temperature. Parts produced with HexPly® M77 have
very high mechanical performance and a glass transition
temperature (Tg) of 125°C.
Compared to standard woven reinforcements, NCF
offers higher mechanical performance, provides greater
flexibility of fibre orientation and the benefit of thin plies
supplied in the form of a thick reinforcement. This
saves time during lay-up, resulting in more rapid part
manufacturing and a cost-effective composite solution.
For more information about Hexcel’s NCF range please
contact: [email protected]
or [email protected]
HexPly® M79 Low Temperature Cure
Prepreg for wind blades and marine
M77 cure cycle for a 3 mm thick part
This rapid-curing product is available in various forms
(UD, fabric) with heavy tow fibres. It is also supplied in
the form of HexMC®, Hexcel’s high performance carbon
fibre compound developed specifically for compression
moulding processes that are compatible with large
volume automated production. A benefit of HexMC® is
that inserts can be integrated into the moulding process
such as screw threads.
HexPly® M79 prepreg from Hexcel is a potential gamechanger for users of resin infusion processes - offering
them a real option to move to prepreg technology and
benefit from superior mechanical performance in thick
composite structures. HexPly® M79 offers the option
to switch to prepreg without changing tools or adding
cost to the end product.
HexPly® M79 was developed to meet industry
requirements for a lower temperature curing prepreg
that cures more quickly than products currently on the
market. A number of cure cycle options are possible
including a very low temperature cure cycle of 8-10
hours at just 70°C or a more rapid cure cycle of just
4-6 hours at 80°C. This is a significant time-saving on
established industry prepregs where a typical cure cycle
for an 80°C curing resin matrix is 10 hours. HexPly®
M79 also has a very long out life at room temperature of
at least two months.
HexPly® M77 and HexMC® M77 hybrid
technology demonstrator
The low cure temperature of HexPly® M79 makes it
compatible with any liquid epoxy resin used for infusion
processing. This means that prepreg and infusion
processes can be combined in the same part, for
the twin advantages of stronger laminates and costeffective processing
4
6
5
HiTape® unidirectional carbon fibre
reinforcements for cost-effective Primary
Aircraft Structures
HiTape® from Hexcel combines the benefits of automated processing
- and the cost-effectiveness of Out of Autoclave (OOA) infusion/
injection technologies - with the high performance of primary
structure prepregs.
HiTape®
Dry UD for Structures
Automated Preform
Process
HiTape® is a unidirectional dry tape, made from Hexcel’s
HexTow® carbon fibre. When used in conjunction with
Hexcel’s HexFlow® infusion resin, HiTape® matches
the mechanical performance of the latest generation
UD prepregs, thanks to the 60% fibre volume content.
Another major innovation of HiTape® is the improved
toughness compared with composite structures made
using other Liquid Composite Moulding technologies.
Dry Preform
Resin Flow Simulation
HiTape® Aircraft Fuselage
Panel Demonstrator
To demonstrate the potential of HiTape® technology
for aircraft primary structures, Hexcel has worked with
Aerolia SAS and Coriolis Composites to design and
manufacture an aircraft fuselage panel demonstrator.
The concept is a self-stiffened skin made by vacuum
infusion using HiTape® with widely qualified HexFlow®
RTM6 resin.
The panel was designed by Aerolia to meet the
manufacturing requirements for primary structure
applications. Coriolis Composites developed the dry
AFP process for full scale prototype of the fuselage skin
and the dry preforms were made at Compositadour.
The co-infusion process for the dry preform skin and
stiffeners was developed and accomplished at Hexcel’s
new Application Laboratory in Les Avenieres, France.
This successful project
has demonstrated how
primary aircraft structures
can be designed and
manufactured using low
cost, highly automated and high
performance materials and processes
to meet the cost and build rate targets of next
generation aircraft, while retaining the weight-saving
opportunities provided by prepreg technology.
Resin
Primary Aircraft
Structure
Resin Infusion
and Cure in Oven
Hexcel has worked closely with automated machine
manufacturers to bring
HiTape® to the market
with the maturity
required using current
conventional automated
placement AFP or ATL
machines.
The tight width tolerance achieved with HiTape®,
associated with proprietary fuzz and splice-free
technology, greatly facilitates the preform manufacturing
process, leading to fewer stoppages during lay-up due
to fibre breakage or equipment cleaning. And there is
no carrier film, so the machines are simpler and more
efficient, not dependent upon room temperature or
humidity for tack control. This means that deposition
rates of 50Kg/h are achievable, depending on part
design.
With standard dry UD tape, there is a limitation on
laminate thickness because of the resin permeability.
But with HiTape® parts up to 30mm thick can be
infused, with a 58 to 60% Fibre Volume Content.
6
6
7
Our products are “the strength within” some of the most technically advanced composite structures
in the world – some of these applications are reflected in the posters that you will see around the show site.
We thank our customers for their support with this campaign.
Follow us on
www.hexc e l . c o m

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