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Manufacturing

  • Thursday, 24th January 2019
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Taking composite materials as a whole, there are many different material options to choose from in the areas of resins, fibres and cores, all with their own unique set of properties such as strength, stiffness, toughness, heat resistance, cost, production rate, etc. However, the end properties of a composite part produced from these different materials is not only a function of the individual properties of the resin matrix and fibre (and in sandwich structures, the core as well), but is also a function of the way in which the materials themselves are designed into the part and also the way in which they are processed.

This section compares a few of the commonly used composite production methods and presents some of the factors to be borne in mind with each different process, including the influence of each process on materials selection.

Published courtesy of David Cripps, Gurit

http://www.gurit.com


Vacuum Bagging


Cure Monitoring

The process by which a liquid thermosetting pre-polymer is turned into a rigid solid is called ‘cure’.

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Spray Lay-up

Describes the processes involved in spray lay-up.

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Wet/Hand Lay-up

Describes the processes involved in wet or hand lay-up.

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Filament Winding

Explains filament winding and highlights the main advantages and disadvantages.

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Pultrusion

Covers the process of pultrusion and some of the material options.

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Resin Transfer

Describes the methods used in resin transfer.

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Infusion Processes

Covers various infusion processes including SCRIMP, RIFT and VARTM.

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Prepreg Moulding

Describes what prepregging is and explains the process.

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Autoclave Design

Covers the safety systems, temperature, pressurisation and vacuum controls, plus a look at future developments.

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Low-Temp Prepreg

Describes low temperature curing prepregs in relation to conventional prepregs.

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Resin Film Infusion

Explains the method involved in resin film infusion.

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