BY-RAJESH KUMAR DWIVEDI

2008AMD3100

Filament winding is a fabrication technique for forming reinforced plastic parts of high strength and light weight.

The use of circumferential wrapping to increase the bursting strength.

Precision high-speed positioning of continuous fiber in a pre-determined pattern is the basis of the filament winding process .

In this there is a mandrel that the fiber and resin wound upon, is cured in room temp or in oven. After cure mandrel is removed leaving a hallow composite structure.

1. circular type 2. rectangular type

Circumferential winding Helical winding

Curing-Polymerization of composites on mandrel.

Pressure chambers-System also requires pressure in addition to

heat.

Epoxy resins Polyester resins Phenolic resins Silicone resins

Fabrication variables Processing variables Winding variables Material's variables Environmental variables weathering humidity

Advantages –1. a very fast and economic method 2. Structural properties of laminates can be

very goodLimitation –1. Lack of ductility2. Low modulus of elasticity

Storage tank Railway tank car Pipe Aerospace

Thank u….