Carbon Fibres Composites

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CarbonCarbon fibresfibres compositescomposites


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CarbonCarbon FibresFibres Reinforced PlasticReinforced Plastic

CFRP or CRPCFRP or CRP

Very strongVery strong

Light and expensive composite materialLight and expensive composite material

Plastic used normally Epoxy , polyester, vinyl ester, nylon.Plastic used normally Epoxy , polyester, vinyl ester, nylon.

Sometimes combination with other polymer such asSometimes combination with other polymer such as kevlarkevlar


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Applications of CFRPApplications of CFRP

1.1. AerospaceAerospace

2.2. AutomotiveAutomotive

3.3. SailboatsSailboats

4.4. Bicycles, motorcyclesBicycles, motorcycles5.5. Small consumer goods laptop computer casing, fishing rods,Small consumer goods laptop computer casing, fishing rods,

racquet sport frames, musical instrument bodiesracquet sport frames, musical instrument bodies guiterguiter, drum, drumshells.shells.


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CompositeComposite ProcessProcess

The choice of matrix can have profound effect to the final propeThe choice of matrix can have profound effect to the final properties of therties of thefinished product.finished product.

One way of producing carbonOne way of producing carbon fibrefibre product is by layering sheets of carbonproduct is by layering sheets of carbon

fibrefibre cloth into a mould in the shape of the final product.cloth into a mould in the shape of the final product. The alignment and weave of the clothThe alignment and weave of the cloth fibrefibre is carefully selected to optimizeis carefully selected to optimizestrength and stiffness properties of the resulting material.strength and stiffness properties of the resulting material.

The mould must be filled with epoxy and is heated or air cured.The mould must be filled with epoxy and is heated or air cured.

Most composite parts are manufactured by draping cloth over a moMost composite parts are manufactured by draping cloth over a mould, withuld, withepoxy eitherepoxy either preimpregnatedpreimpregnated intointo fibrefibre prepregprepreg or painted over it.or painted over it.

High performance aerospace parts are made through this method.High performance aerospace parts are made through this method.

High performance parts using single mould are often vacuum baggeHigh performance parts using single mould are often vacuum bagged ord or

autoclave cured.autoclave cured.Thermosetting plastic has been used but mass production may stilThermosetting plastic has been used but mass production may still show poorl show poormanufacturing capabilities.manufacturing capabilities.


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ProcessProcess

Process for CFRP varies depending on the finished product ,Process for CFRP varies depending on the finished product ,

the amount to be producedthe amount to be produced

Vacuum bag normally 1Vacuum bag normally 1 --2 days2 days

WetWet layuplayup

DryDry layuplayup

A quicker method is compression moldA quicker method is compression mold


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Automotive usesAutomotive uses

CFRP extensively used in automobile racing especiallyCFRP extensively used in automobile racing especially

formula one.formula one.

High cost is mitigated by unsurpassed strength to weightHigh cost is mitigated by unsurpassed strength to weightratioratio

Race car manufacturer developed methods to giveRace car manufacturer developed methods to give certaioncertaion

strength direction based onstrength direction based on fibrefibre orientation.orientation.

OmnidirectionalOmnidirectional carboncarbon fibrefibre weaves that apply strength inweaves that apply strength in

all directionall directionsafety cellsafety cell monocoquemonocoque chassis assembly.chassis assembly.

EgEg. Mc. Mc LarenLaren F1 FerrariF1 Ferrari EnzoEnzo, Porsche, Porsche CarreraCarrera GT , BMW,GT , BMW,General MotorsGeneral Motors


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Carbon Fibres Composites

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