JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 69

(δ~∀mm) for the non-magnetic frame. Thus, controlled by different parameters like the metals’ electrical and magnetic properties, and frequency, the induced power is greater when I' is running through the surface of the magnetic insert than when running through the non-magnetic frame. New Cage System® configuration RocTool has developed Fast Tube® [4], a new configuration of the Cage System® [5] that is designed for the manufacture of tubular parts. The Fast Tube® process makes use of the Cage System® principle: a magnetic field is applied, penetrating into the interior of the tube and creating induced currents on the surfaces of the two mould halves. These currents make the mould surfaces heat up through the Joule effect (figure 2). The specific feature of the Fast Tube® configuration is the mould parting line located between the mould halves, consisting of a layer of copper covered with an electrically insulating coating. This configuration helps produce preferential heating inside the tube and also keeps the thickness of the air gap at the parting line down to less than a millimetre. Fig.4: 2D simulation of induction heating Fast Tube® overview The Fast Tube® process can be used with a wide range of composite materials. Tubes have already been made using thermoplastic (PP , PA6, PA12, PC, etc.) or thermosetting (epoxy) matrices, usually reinforced with carbon fibres. Fig.5: A cycle time with the Fast Tube® process Fig.2: Magnetic field inside the pipe and resulting surface heating pattern The mould surfaces in contact with the material are made of magnetic steel to guarantee efficient heating. The contact between both surfaces is operated by a flexible compaction system, for example an inflatable bladder (figures 3 and 4). Straight cooling channels around the mould surfaces are fed with water to cool the part rapidly. Fig.6: Moulding configuration Figure 5 shows a cycle time obtained when making a carbonfibre/PA12 tube. The composite fabric is placed around the inflatable bladder located at mould centre (figure 6). A pressure of several bars is applied inside the bladder to keep the material in contact with the mould surface during the complete cyle time. The mould is then rapidly heated and cooled, giving a total cycle time of about one minute. Conclusion and potential improvements Developing a prototype mould did demonstrate that the process is relevant, although remain technical improvements to be followed. The fact that industrial demand is for parts that combine many Fig.3: Diagram of the Fast Tube® configuration No42 July-August 2008 / JEC Composites Magazine

JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008

Cover
- Applications Composite aerodynamic front-end cabs for passenger trains
- Citadel Plastics acquires BMC Inc.
- Niche market Durable concrete formwork system
- Cool radiators for hot trucks
BUSINESS - Market survey Hexcel anniversary in 2008 marked by investment
- Raw material Corrosion resistance of High-Performance Glass fibres
USERS’ PLATFORM KNOW-HOW Composites in the world Carbon fibre iPhone case
- New generation of hydrogen cars
- Architecture Composites and architecture: the perfect couple
- EEE enclosures
- Thermoplastics Reinforced thermoplastics enable affordable storm-resistant structures
- Gurit signs 4-year supply agreement with EADS
Innovations
- TechnoCompound expands its production
- SGL Group opens central technology and innovation centre
Agenda of events
FEATURE - Partnership Smart composite materials project DECID2 for structural applications
- Hankuk Fiber Group, one man’s determination
- Process Rapid processing of tubular parts made of thermoplastic composites ......................................
- Process Polydicyclopentadiene winning over construction professionals
- Trenchless pipes’ installation
- Corrosion Composite linings for corrosion protection
- Unmanned aircraft made of high-temperature prepreg
- High impact-strength spokes
NEWS WORLDWIDE - Companies GKN Aerospace creates repair facility for metallic and composite structures
- Raw material SMC/BMC compounds for building and construction
- Trends Coatema expertise: coating and materials handling technologies for prepregs
- The world’s largest offshore wind farm project
- Subsea structures
- Design “Eco-characterisation” of composite materials
- Special JEC Composite Asia
- Hitco to supply components for the B787
- Sandwich structure Polypropylene honeycombs for a variety of uses
- Head restraint system
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - Cover
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 2
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JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - NEWS WORLDWIDE - Companies GKN Aerospace creates repair facility for metallic and composite structures
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Hitco to supply components for the B787
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 10
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JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Hankuk Fiber Group, one man’s determination
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JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 17
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - Innovations
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 19
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - BUSINESS - Market survey Hexcel anniversary in 2008 marked by investment
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 21
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 22
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Niche market Durable concrete formwork system
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Trends Coatema expertise: coating and materials handling technologies for prepregs
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 25
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JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - FEATURE - Partnership Smart composite materials project DECID2 for structural applications
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 29
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Architecture Composites and architecture: the perfect couple
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 31
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 32
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Raw material SMC/BMC compounds for building and construction
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 34
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 35
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Process Polydicyclopentadiene winning over construction professionals
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 37
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 38
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 39
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Thermoplastics Reinforced thermoplastics enable affordable storm-resistant structures
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 41
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 42
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Sandwich structure Polypropylene honeycombs for a variety of uses
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 44
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 45
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Corrosion Composite linings for corrosion protection
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 47
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 48
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 49
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - High impact-strength spokes
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Head restraint system
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Applications Composite aerodynamic front-end cabs for passenger trains
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 53
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Trenchless pipes’ installation
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Unmanned aircraft made of high-temperature prepreg
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Subsea structures
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 57
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Design “Eco-characterisation” of composite materials
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 59
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 60
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 61
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Raw material Corrosion resistance of High-Performance Glass fibres
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 63
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JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 67
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Process Rapid processing of tubular parts made of thermoplastic composites ......................................
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 69
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 70
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - - Special JEC Composite Asia
JEC COMPOSITES MAGAZINE - Issue #42 - July/August 2008 - 72
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