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4. Moulding of small and medium production runs
4.1 Vacuum molding
Vacuum molding technology is used to manufacture thermoplastic composite parts, from composite fabrics of reinforcing fibers and thermoplastics (e.g. glass/PP for Twintex®).
The use of such a composite fabric optimizes the mechanical properties of the part, particularly impact resistance.
This fabric can be combined with various PUR (polyurethane) foams, wood or honeycomb for sandwich structures. Surface enhancement can be achieved by applying gel coat, paint or surface veils and films.
This process, which does not release volatile matter, is suitable for small and medium-sized production runs, for boating, transport, sports and leisure applications, requiring low investment levels for its implementation....
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Moulding of small and medium production runs
Moulding of mass-produced parts
Economic data
Table 1 shows the comparative values and costs of the various TP composite product families.
Bibliography
SGVI and SGVR conferences
Trainee reports St-Gobain Vetrotex International
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Technical documentaries and exhibitions (Europlastique Paris, Plast Milan, Kunstoff Dusseldorf)
Coperion Wernet http://www.coperion.com/
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Standardization
Association Française de Normalisation AFNOR http://www.afnor.org
- Plastiques - Détermination des propriétés en flexion. - NF EN ISO 178 - 05-03
- Plastiques - Détermination des propriétés en flexion - Amendement 1 : déclaration de fidélité. - NF EN ISO 178/A1 - 07-05
- Plastiques - Détermination de la résistance au choc Charpy...
DLFT machine suppliers
(Non-exhaustive list)
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Extrusion-compression
CPI Composite Products Inc. http://www.compositeproducts.com
Dieffenbacher http://www.dieffenbacher.de
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