3D PRINTING

Created By – Submitted To – Rohan Sharma Mr. Lalit Gahlot

• What is 3D Printing ?• How it works ?• Methods & Technologies• Applications• Challenges• Conclusion

TOPICS

• 3D printing is a process of making three

dimensional solid objects from a digital file.• 3D printing is also known as desktop manufacturing

or additive manufacturing.• In an additive process an object is created by laying

down successive layers of material until the entire object is created.

What is 3D Printing ?

How it works ?• What type of material can we use for 3Dprinting?

How it works ?• A virtual design of the object is created in CAD

(Computer Aided Design) by 3D scanner.• A software slices the final model into hundreds or

thousands of horizontal layers.

Methods & Technologies • The printer creates the object layer by layer,

resulting in one three dimensional object. There are 3 methods of 3D printing :-

1. Selective laser sintering (SLS) 2. Fused deposition modeling (FDS) 3. Stereolithography (SLA)

Methods & Technologies

Selective laser sintering (SLS) : uses a high power laser to fuse input materials like plastic, metal, glass, etc. It scans the powdered material layer by layer.

Methods & Technologies

Fused deposition modeling (FDS) : uses a plastic filament or metal wire as input material to an extrusion nozzle. The nozzle is heated to melt the material and can be moved in both horizontal and vertical directions by CAM. The material hardens immediately after extrusion from the nozzle.

Methods & Technologies

Stereolithography (SLA) : photo polymerization is used to produce a solid part from a liquid. This technology employs a vat of liquid ultraviolet curable photopolymer resin and an ultraviolet laser to build the object’s layers one at a time. UV Laser solidifying the pattern.

Application in medical Applications

Application for consumer

Applications

Application in manufacturing

Applications

1. Cost :The current cost of cheap personal printer is around 1,50,000 Rs.

2. 3D printers are energy hogs : When melting plastic with heat or lasers, 3D printers consume about 50 to 100 times more electrical energy than injection molding to make an item of the same weight

3. Unhealthy air emissions : 3D printers may pose a health risk when used in the home, according to researchers at the Illinois Institute of Technology. The emissions from desktop 3D printers are similar to burning a cigarette or cooking on a gas or electric stove.

Challenges

4. Gun control loopholes : The first successful 3D printed gun is old news. Companies are popping up around the world , attempting to sell these guns for them. Engineering firm Solid Concepts has even fired rounds out of the first 3D printed metal gun. Undetectable Firearms Act, which bans guns that can't be detected by metal detectors or x-ray scanners, was renewed for 10 years.

Challenges

• 3D printing is an expanding technology which may soon start an industry in which everyone has the possibility of being a manufacturer.

• 3D printing has a lot of possible benefits to society, although the products created must be regulated.

Conclusion

Thank You