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 good Limitation – 1. Lack of ductility 2. Low modulus of elasticity

 Storage tank  Railway tank car  Pipe  Aerospace

Thank u….