Composites
–Co-molding of local reinforcements for
optimized force transmission and locally
increased mechanical performance
–Local reinforcement with fabrics, non-福利
乐透型c735
三氯氢硅wovens and component specific pre-forms
–Optimization of crash worthiness of LFT
parts and injection molded parts by the
integration of high strength fiber structures
–Utilization of glass, aramid and carbon
fibers etc. for efficient light weight design ICT Träger
demonstration
part
Tailored Structures for Efficient Lightweight Construction
Composites at a Glance
Material and Process Development for:
–Long fiber reinforced thermoplastics,
< LFT direct process (LFT-D/ILC)
–Advanced LFT – use of engineering
thermoplastics as matrix polymer
in the LFT-D/ILC process
–Tailored LFT – co-molding of LFT with
local continuous fiber reinforcement
(Tailored Fiber Placement)
–Processing of thermoset composites and吴敏伦
process development for thermoset materials
< SMC
–Development of natural fiber reinforced
composites in combination with biopolymers
蔡邕书论
–Plastic-metal-hybrid – compression molded
long fiber reinforced parts with metal inserts
for joining of metal and polymer components
–Component and process simulation for
LFT-parts and structures
–Cast-Polyamide – in-situ-polymerization
for the production of fiber reinforced high
performance parts
Structural composite
door-module
Schematic layout of the LFT-D process with In-Line-Com-pounding (LFT-D/ILC)
Twin screw mixing extruder with fiber direct incorporation
Direct Process for
Long Fiber Reinforced Thermoplastics (LFT)
LFT Direct Process (LFT-D)
Production of glass fiber reinforced thermoplastic parts with fiber direct incorporation: Direct incorporation of reinforcement fibers into the polymer resin melt and succeeding molding of the component parts
–Development of component-specific material compositions and properties –Adjustable fiber content and free choice of reinforcement type
Advantages
–Reduced production costs by the elimination of semi-finished products and logistical effort –Increased production flexibility –LFT-strand with variable thickness for optimized mold fill
LFT-D with In-Line Compounding (LFT-D/ILC)–Versatility regarding material composition –Just-in-time production
–In-line compounding of polymers and additives
–Use of engineering polymers –significant increase of properties
This process and material development was awarded with the
JEC Award 2002
Our partner Dieffenbacher GmbH & Co. KG was awarded for the development of processing equipment with the
AVK-TV Innovationspreis 2001
Tailored LFT – Co-Molding of LFT and Continuous Fiber Reinforcements
Material
–Long fiber reinforced and continuous fiber reinforced thermoplastics (Tailored LFT)–In-Line-Compounding of LFT material in the LFT-D/ILC process
–Local reinforcement of LFT-parts with fabrics and pultruded profiles
Front-end carrier BMW E46 made of Tailored LFT
Research Topics
–Mold fill analysis for compression molding of LFT and SMC
–Investigation of rheological material data for LFT-D and SMC materials
–Structural analysis with finite element simulation of co-molded LFT parts and SMC structures
–Available Software: Catia V5, Ansys,
Express, Moldflow, Marc, Coda and others
Process Simulation of
Long Fiber Reinforced Materials
Tailored LFT Process
–Co-molding of woven fabric and LFT in one single compression molding step
–Completely automated production process:Transfer and positioning of LFT and
reinforcements are automated with cycle times of 35 seconds per component
Prototype Part
–Front-end carrier of BMW E46(3 series) made of Tailored LFT
–Weight reduction of 30 % compared to original steel construction, approximately 10 % weight reduction compared to a plastic-metal-hybrid solution
This project was funded by the german federal ministry of research and education and supervised by PTJ Jülich (Project number: 03N3069)
Our Offer
–Material and process development –Technology and equipment development –CAD, FEM
–Characterization
Equipment –Schmidt & Heinzmann SMC equipment –BMC Z-blade compounder
–Fjellman and Dieffenbacher press –Reaktometer and Plastometer –Diffractometer
夜圣
–Process data acquisition
–
Wide range of characterization methods
Main Research –Class-A SMC
–CF and Tailored SMC
–Low density and foaming of SMC –Optimization of reproducibility,quality and emissions
–Natural fibers and polymers –Recycling technologies –In-line data acquisition
–Structural and process simulation –
Nano technology
Long Fiber Reinforced Thermosetting Composites (SMC/BMC)
Schmidt &Heintzmann SMC line
Fjellmann SMC press
Part manufactured in low density SMC
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