Manufacturing Processes for Polymer Composite

Question 1

Also called “Closed Mold Process,” resin
transfer process employs a rigid mold
featuring inlets for resin infusion and
outlets for air release.

Answer 1

Resin Transfer Molding (RTM)

Question 2

variation of the traditional RTM. In
this process, the vacuum is applied to an outlet
of the mold and the resin is drawn into the mold
by vacuum only.

Answer 2

Vacuum-Assisted Resin Transfer
Molding (VARTM)

Question 3

Applying uniform pressure to the laminate before
curing enhances fiber consolidation and removes
unnecessary resin, air, and volatiles from the matrix.
Pressure is applied using a flexible diaphragm or bag.

Answer 3

Bag Molding

Question 4

Bag Molding three fundamental methods for applying
pressure

Answer 4

pressure bag, vacuum
bag, and autoclave processing

Question 5

s a high-volume, high-pressure
process appropriate for molding complicated, highstrength glass fiber reinforced products with either
thermoset or thermoplastic resin.

Answer 5

Compression Molding

Question 6

specialized technique
employed in composite manufacturing, where
continuous fibers are precisely and automatically
wound onto a rotating mandrel or mold

Answer 6

Filament Winding

Question 7

a continuous manufacturing process used to manufacture
constant cross-section shapes of any length.
● A low-cost process due to straightforward conversion of continuous fibers and
resin

Answer 7

Pultrusion

Question 8

The resulting composite in Pultrusion

Answer 8

a fiber-reinforced polymer (FRP