Seminar Presentation on 3D PRINTING

By:Bhumika Marolia

CONTENTSOverview of 3D PrintingGeneral PrinciplesMethods of 3D Printing3D Printing MaterialsApplicationsFuture ScopeAdvantages and disadvantagesConclusionReferences

Overview of 3D Printing“3D printing” or “Additive Manufacturing” takes digital

input in the form of Computer Aided Design (CAD) model and creates solid, three dimensional parts through an additive, layer by layer process.

Types of ManufacturingAdditive ManufacturingSubtractive Manufacturing

Additive Manufacturing could reduce energy use by 50% and reduces material costs by up to 96% compared to traditional manufacturing.

General Principles1.Modelling:It takes virtual blueprints from modeling software and “slices” them into digital cross-sections for the machine to successively use as a guideline for printing.2.Printing:To perform a print, the machine reads the design from an .stl file and lays down successive layers of liquid, powder, paper or sheet material to build the model from a series of cross section.3.Finishing

How Does It Work?

A person creates a

3D image of an item using a

CAD software program.

The CAD information is sent

to the printer.

The printer forms the item by

depositing the material in layers—

starting from the bottom layer—onto

a platform. In some cases

light or lasers are

used to harden the material.

How Does It Work?

Methods of 3D Printing1.Selective Laser Sintering(SLS)2.Stereolithography3.Fused Deposition Modeling(FDM)

Stereolithography

FDM

Selective Laser SinteringIt is an additive manufacturing technique that uses a high power laser( for eg. CO2 laser) to fuse small particles of plastic, metal, ceramic or glass powders into a mass that has a desired 3D shape.

StereolithographyIt is an additive manufacturing process that works by focusing an ultraviolet (UV) laser on to a vat of photopolymer resin.

Fused deposition modelingIt build parts layer-by-layer from the bottom up by heating and extruding thermoplastic filament. Used for modelling, prototyping and production applications.

FDM

3D Printing Materials

1.Plastic FilamentAcrylonitrile Butadiene Styrene (ABS)

PLA Polylactic acid or polylactide (PLA, Poly)

Flexible Plastic (TPE) Nylon

2.Metals

Brass, Bronze, Platinum, Silver and Gold

Steel Aluminum

Applications1.Concept Modeling :This lets small design and engineering firms extend their reach by testing out more ideas .2.Functional Prototyping: It helps in creating amazingly realistic

prototypes with the look and feel

of a real product.Example:Lamborghini, while developing its new flagship model Aventador hasmade extensive use of 3D printing technology to build a functional prototype of the car.

3.Manufacturing Tools: Quick, low-volume tooling and custom fixtures give manufacturers the flexibility to embrace more opportunities.4.End-User Parts5.Food6.Fashion & Retail

7.Medical:

Artificial Arms for Disabled

Secrets of the Heart Medical Equipments

Bioprinting Tissues and organs

Future Scope1.Complex Engine parts.2.On demand parts in Space.3. Aircraft Wings.4. 3D Printing as a Service(3DPaaS)

5.3D-printed Lunar Base 6.Design your own clothes

7.Print your home

Advantages and DisadvantagesAdvantages:Ability to customize productsRapid production of prototypes.Low cost of production.No storage costQuick availability of organs.

Disadvantages:

Intellectual property issuesUnchecked production of dangerous itemsLimitations of sizeLimitations of raw materialCost of printers

Conclusion3D 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.

Referenceswww.http://on3dprinting.com/wpcontent/uploads/2012/

08/20120806-Infographic-How-3D-Printing-Works-Preview.jpg

http://www.oshup.com/advantages-and-disadvantages-of-3d-printing-technology/

http://thefutureofthings.com/4664-the-future-of-3d-printing/

http://dupress.com/articles/additive-manufacturing-3d-opportunity-in-aerospace/

http://3dprintingindustry.com/3dp-applications/