This is a presentation that makes us aware about 3d Printing and how it growing in field of healthcare sector.

1. SGC PROCESS
SUBMITTED BY – ANUSHKA PRAKASH
ROLL NO – 1815054012
BRANCH – BIOTECHNOLOGY
SECTION – A
SUBMITTED TO – MR. ABHISHEK SIR

2. CONTENT :
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● SGC PROCESS
● PRINCIPLE
● WORKING
● APPLICATION
● ADVANTAGES
● DISADVANTAGES
● CASE STUDY

3. INTRODUCTION TO SGC
Solid ground curing (SGC) is a photograph polymer-
based added substance assembling or 3D printing
innovation utilized for delivering models, models,
examples, and creation parts. In which the generation
of the layer geometry is completed by methods for a
powerful UV light through a veil. As the premise of
strong ground curing is the presentation of each layer
of the model by methods for a light through a cover,
the preparing time for the age of a layer is free of the
nature of the layer.
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4. SGC technology
Solid ground curing uses the common
technique of coagulating of photopolymers by
an entire lighting and solidifying of the whole
surface, utilizing exceptionally arranged masks.
In SGC process, each layer of the model is
cured by presenting to an ultra violet (UV) light
rather than by laser checking. So that, each part
in a layer are at the same time cured and do not
require any post-curing forms.

5. PRINCIPLE :
● Parts are built, layer by layer, from a liquid photopolymer resin that solidifies
when exposed to UV light, Except that the irradiation source is a high power
collimated UV lamp and the image of the layer is generated by masked
illumination instead of optical scanning of a laser beam. The mask is created
from the CAD data input and “printed” on a transparent substrate (the
mask plate) by an nonimpact ionographic .The image is formed by
depositing black powder, atoner which adheres to the substrate
electrostatically. This is used to mask the uniform illumination of the UV
lamp. After exposure, the electrostatic toner is removed from the substrate
for reuse and the pattern for the next layer is similarly “printed” on the
substrate.
● Multiple parts may be processed and built in parallel by grouping them into
batches (runs) using Cubital’s proprietary software.

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● Each layer of a multiple layer run contains cross-
sectional slices of one or many parts. Therefore, all
slices in one layer are created simultaneously. Layers
are created thicker than desired. This is to allow the
layer to be milled precisely to its exact thickness, thus
giving overall control of the vertical accuracy. This step
also produces a roughened surface of cured
photopolymer, assisting adhesion of the next layer to it.
The next layer is then built Immediately on the top of
the created layer.
● The process is self-supporting and does not require the
addition of external support structures to emerging
parts since continuous structural support for the parts is
provided by the use of wax , acting as a solid support
material

7. ● This process involves several steps :
1. Ascertaining cross segments. You need
ascertaining a cross segment of each cut layer
in light of the geometric model of the part and
the coveted layer thickness.
2. Optical cover. The optical cover is produced
fitting in with each cross segment.
3. Covering the platform. In the wake of
leveling, the stage is secured with a thin layer
of fluid photopolymer.
WORKING :

8. 4. Mask positioning. The cover relating to
the present layer is situated over the
surface of the fluid pitch, and the gum is
presented to a powerful UV light.
5. Residual fluid. The lingering fluid is
expelled from the work piece by a
streamlined wiper.
6. Filling voids. A layer of softened wax is
spread over the work piece to fill voids.
The wax is then hardened by applying a
cool plate to it.
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7. The layer surface is trimmed to the coveted
thickness by a processing plate.
8. Covering work piece. The present work
piece is secured with a thin layer of the fluid
polymer, and stage 4 to seven are
rehashed for each succeeding upper layer
until the point that the highest layer has
been prepared.
9. Melting. The wax is liquefied endless
supply of the part.

10. APPLICATIONS :
The applications of SGC system can be divided
into four areas :
1.Genral application : Conceptual design
presentation, design proofing, engineering testing
etc.
2. Tooling and casting : investment casting , sand
casting .
3. Mold and tooling : silicon rubber tooling, epoxy
tooling, spray metal tooling .
4. Medical imaging : diagnostic , surgical,
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11. ADVANTAGES :
1. Solid Ground curing framework do not need a
help structure : No extra support is needed since
wax is utilized to fill the voids.
2. Accuracy of procedure : The model created by
Solid Ground Curing process is nearly precise in
the Z-bearing in light of the fact that the layer is
processed after each light-presentation process
● High performance efficiency .
● Low price of printed object
● Minimum shrinkage effect.
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12. DISADVANTAGES :
1. Too much waste. In spite of the fact that it offers
great exactness combined with high throughput,
it delivers excessively waste.
2. High operational costs. Its working expenses
are relatively high because of the frameworks
many-sided quality.
3. Expensive Printer installation
4. Complexity of model creation due to huge
amount of masks.
5. Waste material produced.
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13. Cubital prototyping machine builds jeep in 24 hours
● TMD of Toledo, Ohio , has used cubital’s
solider 5600 rapid prototyping system to
produce three designs iterations of a toy jeep in
three days. The plastic push toy is about 30cm
long , 23cm wide and 23cm high.
● Using thw cubital solider 5600, TMD was able
to produce each design iteration in 13 hours of
machine time. By using cubital front end
software, the parts were “nested” within volume
only 10cmdeep,within the soldier's working area
50cm X 35cm .
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