Institusion
INSTITUT TEKNOLOGI DIRGANTARA ADISUTJIPTO
Author
NOVALLA NANDARESA, AFRISCA
Subject
T Technology (General)
Datestamp
2024-06-21 06:10:20
Abstract :
Plastic at this time has been widely used as an alternative to various
human equipment made of metal, glass and wood. It is because plastic has the
following advantages, such as it has a smooth surface, easily formed, lightweight,
not easily broken, rust resistant, resistant to corrosion, and has a high economic
value. There are several parameters that determine the quality of the plastic mold
in the vacuum forming process, one of which is the pressure used. This study was
used to produce the best pressure formability of the GoTA Drone UAV canopy
mold to compare surface roughness with the original canopy with composite
materials.
In the process, the method used was one of the simple thermoforming
methods, namely vacuum formation. This study as a test material used plastic
sheets with the type of polyvinyl chloride (PVC) with levels of 36.5 cm x 28.5 cm
with a thickness of 2 mm. For temperatures at a constant temperature of 120 ° C
with a pressure that is varied into a pressure variation that is; -2cmHg, -4cmHg, -
6cmHg, and -8cmHg. The method used to determine the formability of printouts
was to approve the area and the best measurement results carried out surface
roughness testing.
Based on the research conducted, the vacuum forming process was
carried out with several rounds, namely: cutting PVC plastic in accordance with
the size of the frame, providing a grid on PVC, heating PVC plastic with a
temperature of 120 ° C, installing a vacuum pressure, vacuum process, and the
process of removing material from the frame. From the research results obtained
from the best value for the acquisition of plastics that is -2 cmHg with an average
percentage of formability quality 97.444%.