Rapid
prototyping is the process of generating an object
directly from its digital representation in a CAD/CAM
system. The main benefit of this process is reduced
time to
produce a prototype, which in turn speeds up the entire
development process.
Rapid prototyping is The speedy
fabrication of sample parts for demonstration,
evaluation,
or testing. It typically utilizes advanced
layer manufacturing technologies that can quickly generate
complex three-
dimensional objects directly from
computer-
based models devised by Computer Aided Design (CAD).
This
computer representation is sliced into two-dimensional
layers, whose descriptions are sent to the fabrication
equipment to build the part layer by layer. Rapid
prototyping includes many different fabrication
technologies.
Stereolithography (SL), selective
laser sintering (SLS), laminated object manufacturing (LOM),
and
fused deposition modeling (FDM) are a few examples.
Rapid
prototyping is the automatic construction of mechanical
models with 3D printers, stereolithography machines or
selective laser sintering systems. Rapid prototyping is
a
type of computer-aided manufacturing (CAM) and is one
of
the components of rapid manufacturing. Rapid
prototyping is
as known as solid freeform fabricationPatented in 1986,
stereolithography started the rapid prototyping technique
builds three-dimensional models from
liquid photosensitive
polymers that solidify when revolution. The exposed to
ultraviolet light. As shown in the figure below, the model
is built upon a platform situated just below the surface in
a vat of liquid epoxy or acrylate resin. A low-power highly
focused UV laser traces out the first layer, solidifying
the model’s cross leaving excess areas liquid. section while
Next, an elevator incrementally lowers the platform into
the liquid polymer. A sweeper re-coats the solidified layer
with liquid, and the laser traces the second layer atop the
first. This process is repeated until the prototype is
complete. Afterwards, the solid part is removed from the
vat and rinsed clean of excess liquid. Supports are broken
off and the model is then placed in an ultraviolet oven for
complete curing.