JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 32
lightening
Lightweight, quick-heating glass fibre composite tools for composite parts
Behind every well-made composite part sits a well-constructed tool. And critical to that success is design and material selection. Composite parts can be formed in tools, or moulds, made from a wide variety of materials — everything from steel, aluminium and ceramics to glass fibre, high-density foams, and even wood/ plaster models. The choice of the best tooling material for the job depends on many factors.
By
Jaap Jan Kleef New Business Manager Parabeam® 3D Glass Fabrics
Smart shrinking
H
igh-performance composite parts and those requiring a high rate of production are frequently produced on ceramic or metal tooling. However, while these tools allow exacting precision and are extremely durable — standing up to thousands of production cycles — they are also heavy, expensive, and typically require third-party tooling specialists to maintain. As demand grows for larger composite parts, these expensive, often times cumbersome tools, become increasingly less attractive.
The use of a composite tooling material provides the composite manufacturer the advantage of building tools in-house using materials similar to what will be used for the finished part. This provides a variety of benefits, not the least of which is a nicely matched coefficient of thermal expansion (CTE) between the tool and the part. Since shrinkage and thermal expansion of the composite part will be similar to the composite tool, the part is better able to maintain
dimensional integrity during cure. Composite tools are also lighter, and while composite tooling may be less durable than ceramic or metal tooling, advances in composite materials and design are increasing the capabilities of composite tools.
Technical insights
For instance, a lightweight, quickheating tool with integrated cooling channels, suitable for either open moulding or RTM, can be built using layers
Boats, trucks, aero
Softer tooling materials, such as glass fibre materials and high-density foam, are well suited for open mould processes, including hand lay-up and spray-up, which are used to produce a variety of large composite parts such as boat hulls and decks, truck cabs, hot tub shells and shower enclosures. Resin transfer moulding (RTM), a low-pressure vacuum process, uses glass fibre or electroformed moulds that are typically capable of producing up to 10,000 parts.
Fig. 1: Azuree-40 made in a composite mould
32 jec composites magazine / No75 August - September 2012
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012
Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012
Cover
Edito
Point of view: prepreg
Contents
Agenda of Events
COMPANY & BUSINESS
- In Brief
- Strategy
APPLICATIONS
- Automotive
- Building & construction
MARKET
- Human resources
- Glass fibre
- Thermoset
FEATURE MARINE
- Sustainability
- Natural fibre
- Sandwich
- Lightening
- Material
- Environment
- Underwater
RESEARCH & DEVELOPMENT
- Heating
- NDT
TECHNOLOGY & INNOVATIONS
- Testing
- Thermoplastic
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Cover
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 2
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Edito
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Point of view: prepreg
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 5
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Contents
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 7
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 9
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Ad1
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Ad2
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - In Brief
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 11
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Strategy
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 13
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Automotive
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 15
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 16
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Building & construction
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Human resources
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Glass fibre
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 20
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 21
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Thermoset
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 23
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 24
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Sustainability
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 26
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 27
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Natural fibre
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 29
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Sandwich
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 31
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Lightening
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 33
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Material
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 35
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 36
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Environment
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 38
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 39
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Underwater
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 41
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Heating
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 43
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 44
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 45
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 46
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 47
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - NDT
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 49
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 50
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 51
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 52
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Testing
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 54
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - - Thermoplastic
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 56
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - Index
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - In the world
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 59
JEC COMPOSITES MAGAZINE - Issue #75 - August/September 2012 - 60
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