3D printing is any of various processes in which material is joined or solidified under computer control to create a three-dimensional object ,with material being added together (such as liquid molecules or powder grains being fused together), typically layer by layer. In the 1990s, 3D printing techniques were considered suitable only for the production of functional or aesthetical prototypes and a more appropriate term was rapid prototyping

1. 3D PRINTING
A Technology towards revolution

2. Contents
•What is 3D printing?
•Additive Process
•General Principles
•3D Printing Technology
•Work Flow
•Why 3D Printing?
•Applications
•Conclusions

3. What is 3d printing?
•The technology used for printing
physical 3d objects from digital out
is called 3d printing.
•I t was first developed by Charls Haul
in 1984.
•It is also called RAPID PROTOTYPES.
•In 1993, Massachusetts Institute of
Technology (MIT) patented another
technology, named "3 Dimensional
Printing techniques", which is

4. Additive Manufacturing:
• The term additive manufacturing
refers to technologies that create
objects through a sequential
layering process. Objects that are
manufactured additively can be used
anywhere throughout the product life
cycle,

5. General Principles
• Modeling
• Printing
• Finishing

6. Modeling:
• Additive manufacturing takes
virtual blueprints from computer
aided design (CAD)
• or animation modeling software and
"slices" them into digital cross-
sections for the machine to
successively use as a guideline for
printing.

7. Printing:
• To perform a print, the machine reads the
design and lays down successive layers of
liquid, powder, or sheet material to build the
model from a series of cross sections. These
layers, which correspond to the virtual cross
sections from the CAD model, are joined together
or automatically fused to create the final
shape. The primary advantage of this technique
is its ability to create almost any shape or
geometric feature.

9. Finishing
• :
• Though the printer-produced
resolution is sufficient for many
applications, printing a slightly
oversized version of the desired
object in standard resolution, and
then removing material with a higher-
resolution subtractive process can
achieve a higher-resolution

10. types of 3d printing
• Stereolithography
• Selective laser sintering (SLS)
• Multi-jet modeling (MJM)
• Inkjet 3D printing

11. Stereolithography
• Stereolithography is a process for
creating three- dimensional objects
using a computer-controlled laser to
build the required structure, layer by
layer. It does this by using a resin
known as liquid photopolymer that
hardens when in contact with the
air.

12. Selective laser sintering (SLS)
• This builds objects by using a laser
to selectively fuse together
successive layers of a cocktail of
powdered wax, ceramic, metal, nylon
or one of a range of other materials.

13. Multi-jet modeling (MJM)
• This again builds up objects from
successive layers of powder, with an
inkjet-like print head used to spray
on a binder solution that glues only
the required granules together. The
V-Flash printer, manufactured by
Canon, is low-cost 3D printer. It’s
known to build layers with a light-
curable film. Unlike other printers,
the VFlash builds its parts from the

14. Inkjet 3D printing
• It creates the model one layer at a time by spreading a
layer of powder (plaster, or resins) and inkjet printing
binder in the cross-section of the part. It is the most
widely used 3-D Printing technology these days and the
reasons beyond that are stated below
• This technology is the only onethat
• Allows for the printing of full color prototypes.
• Unlike stereo lithography, inkjet 3D printing is optimized
for speed, low cost, and ease-of-use.
• No toxic chemicals like those used in stereo lithography
are required.
• Minimal post printing finish work is needed; one needs
only to use the printer itself to blow off surrounding
powder after the printing process.

15. Inkjet 3D printing

16. WORK FLOW

17. CAD Preparation (Pre-Process):

18. Heating

19. 3D Printing:

20. Finishing

21. WHY 3D PRINTING?
•Increase Innovation Improve
Communication Speed Time to
Market
• Reduce Development Costs
• Win Business

22. APLLICATION OF 3D PRINTING :
• Design Prototypes:
•3-Dimensional Printing concept model,
functional prototypes and
presentation models for evaluating
and refining design, including
Finite Element Analysis (FEA) results
and packaging.

23. Education:
•Engage students by bringing digital
concepts into the real world,
•turning their ideas into real-life
3D color models that they can
actually hold i

24. Healthcare:
•Rapidly produce 3D models to reduce
operating time,
• enhance patient and physician
communications, and improve patient
outcomes.

25. •Reduce material wastage More local
manufacturing Increased customisation
•Digital storage & transportation
•Open design & MANYMORE

26. CONCLUSION:
• Nothing communicates ideas faster
than a three- dimensional part or
model. With a 3D printer you can
bring CAD files and design ideas to
life – right from your desktop. Test
form, fit and function – and as many
design variations as you like – with
functional parts.