Filament Winding

Question 1

. Describe the Filament winding process.

Answer 1

A resin coated continuous fiber that is delivered to a rotating mandrel, which the
fiber carriage traverse the length of the part at speeds synchronized with the
mandrel rotation, creating winding angles at which the reinforcement materials is
placed on to the mandrel. Successive layers are added at the same or different
winding angles until desired thickness is reached.

Question 2

What is the common shape of a part coming off of a filament winder:

Answer 2

Cylinder, Pipe, Tubing

Question 3

What is the typical upper limit for winding speed? Precise speed?

Answer 3

300-350 linear feet/min; 50-100 linear feet/min

Question 4

Two types of resin systems can be used in filament winding:

Answer 4

Wet or prepreg filaments

Question 5

. What style winding is this considered:

Answer 5

(Find way to extract pic)

Helical

Question 6

What is a suitable viscosity range at room temp?

Answer 6

350-1000cps

Question 7

If the fiber is not already impregnated with resin, at what point does the fiber
become wetted down?

Answer 7

Resin bath/impregnation tank

Question 8

What is the device that helps with roving separation?

Answer 8

Pin comb

Question 9

What are the disadvantages to filament winding?

Answer 9

part configuration should facilitate mandrel extraction, mandrel could be complex
and expensive, inability to wind reverse curvature (“female” feature), inability to
easily change fiber path within one layer, as-wound external surface may not be
satisfactory for some applications

Question 10

What is the device called that the fiber gets winded onto?

Answer 10

Mandrel