JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 59

KNOW-HOW Thermoplastic fabric Switching easily from metal to composite Carbostamp® is a range of fully impregnated carbon/thermoplastic fabrics from Soficar that were developed for high productivity in the automotive, sports and leisure, aerospace and industry markets. They offer an excellent production time-cycle/mechanicalperformance ratio, and constitute a new way to switch easily from metal to composite. MAURICE GELI, COMPOSITE MANAGER, SOFICAR GUY DUPUPET, MANUFACTURING DIRECTOR, SOFICAR The material is available in 1300-mm-wide rolls wound on a 300-mm mandrel. It is totally free of dry carbon fibre, even after cutting operations. It is also available in the form of consolidated panels, measuring 2500x1300 mm (or custom size) Processing Plies can be cut to shape using a guillotine, die cutter, ribbon saw or slicer for straight cuts, an electrical shear cutter for complex cuts, or a water-jet cutter (plies dry overnight at 70°C). At room temperature, the minimum bending radius is 10 mm. Several moulding technologies are possible: press moulding, stamping, autoclave moulding. Whichever technology is used, a good release agent is necessary. This might be any one of several products available on the market, or high-temperature wax. Carbostamp® consists of woven UD tapes, impregnated with thermoplastic resins using a technology that is similar to extrusion. The products are available in different weave styles (UD, 2/2 twill or plain) and offer many advantages compared to usual technologies. For instance, compared to a standard metal stamping process, they have all the advantages of a composite material, especially part weight reduction. The technology makes it possible to enter the composite market using a quite similar manufacturing process that requires only low investment. Carbostamp® is easier to handle and process than thermosets, has unlimited life, and offers a high production rate. It can be used to manufacture reinforced materials at lower cost than with usual thermoforming methods. Table 1: PPS product definition Press moulding/stamping The data that follow are only starting parameters. The mould heating system and processing conditions must be determined through testing, as a function of the required shape and thickness. The stamping process includes three basic steps: 1) preheating the correct number of plies in an IR or hot-air oven (220-240°C for PA 12 and 310-330°C for PPS) to melt the matrix; 2) transferring from oven to press; because the temperature of the plies drops very rapidly during the transfer from the oven to the press (up to 3°C/sec), both the transfer and closing the press should be done as fast as possible. For example, a two-ply stack heated to 220°C in an IR oven has a cooling rate in air of about 2°C/sec. To handle pre-heated Carbostamp® plies, either an external frame equipped with a clamp and springs or a steel wire net system can be used (Figure 1); Table 2: Polyamide 12 product definition Table 3: Physical properties (*under development) Springs Clamp Frame Carbostamp® stack Fig.1 : Preheating device No37 December 2007 / JEC Composites Magazine

JEC COMPOSITES MAGAZINE - Issue #37 - December 2007

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #37 - December 2007

Cover
Edito
CONTENTS
NEWS WORLDWIDE
- Companies
- Agenda of events
- Innovations
BUSINESS
- Trends
- Market survey: China
- Initiative
- Niche markets
- Human capital
FEATURE - BIOCOMPOSITES
- Properties
- Materials
- Applications
USERS’ PLATFORM
- Composites in the world
- Applications
- Successful partners
- Impact analysis
KNOW-HOW
- Thermoplastic fabric
- Control
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - Cover
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 2
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - Edito
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 4
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 5
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - CONTENTS
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 7
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Companies
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 9
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 10
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 11
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 13
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Innovations
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 15
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 16
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 17
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Trends
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 19
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Market survey: China
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 21
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 22
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 23
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 24
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 25
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 26
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 27
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Initiative
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 29
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Niche markets
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 31
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Human capital
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 33
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Properties
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 35
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 36
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Materials
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 38
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 39
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 40
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 41
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Applications
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 43
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 44
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 45
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 46
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 47
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 48
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 49
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Composites in the world
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 51
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Applications
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 53
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Successful partners
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 55
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 57
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 58
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Thermoplastic fabric
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 60
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 61
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - - Control
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 63
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 64
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 65
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 66
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 67
JEC COMPOSITES MAGAZINE - Issue #37 - December 2007 - 68
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