Inside 3D Printing 2015 Mumbai

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TECHNOLOGY OF RAPID PROTOTYPING SCOPE,
PERSPECTIVES RECENT APPLICATIONS

• Dr. Santosh Kumar
• Department of Mechanical Engineering, IIT(BHU)
  Varanasi (UP) India 221005

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Technology Process materials
Methods Applications
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• Nature history
• Caccons, spider, mudbee, bees etc. in nature
• JALEBI
• 1984 machine building
• Started in 2005 by Dr Adrian Bowyer
• Develop an open source self-replicating 3D
  printer
• Short for Replicating Rapid Prototype
• General Public License (GPL)

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3D printing is inspired from Nature
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3D printing is inspired from Nature
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3D printing is inspired from Nature
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Ist industrial revolution began in Britain in
the late 18th century, with mechanisation of the
textile industry.
Kaizen
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IInd Industrial revolution early 20th century,
Henry Ford mastered moving assembly line the
age of mass production. The third revolution
is under way and that consists of manufacturing
going digital.
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Next Industrial Revolution
The third revolution is under way and that
consists of manufacturing going digital.
Additive
Subtractive
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Subtractive Manufacturing

• Subtractive Manufacturing
• Milling
• Turning
• Drilling
• Computer Numerical Control (CNC)
  Machine

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Manufacturing

• Additive

• Subtractive

• Creating A Form
• Conserves Resources
• Efficient
• 3D Printing

• Uncovering A Form
• Carving A Sculpture
• Chiseling A Statue
• Wasteful
• Time Consuming

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Basic process of RP

• Three stages pre-processing, building, and
• post processing

RP Process
Pre Process
Post Process
in CAD
in RP systems
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Additive Manufacturing Process of joining
materials to make an object from 3D model
Data layer-by-layer process Having different
geometries
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DESIGN tIPS
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How 3D Printing Can Change the World?
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Rapid Prototyping vs Additive Manufacturing
AM breakdown by industry today
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.STL File

• Software generates a tessellated object
  description
• File consists of the X, Y, Z coordinates of the
  three vertices of each surface triangle, with an
  index to describe the orientation of the surface
  normal
• Support generation to hold overhung surfaces
  during build

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solid ascii facet normal 0.000000e000
-1.018113e-001 -9.948037e-001 outer loop
vertex 6.413766e000 9.540946e000
4.174942e-001 vertex 6.663766e000
9.540946e000 4.174942e-001 vertex
6.413766e000 9.467294e000 4.250320e-001
endloop endfacet facet normal 1.587419e-015
-1.018113e-001 -9.948037e-001 outer loop
vertex 6.413766e000 9.467294e000
4.250320e-001 vertex 6.663766e000
9.540946e000 4.174942e-001 vertex
6.663766e000 9.467294e000 4.250320e-001
endloop endfacet . .
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Final Build File
Part

• Part sliced
• Supports sliced
• RP technology parameters set
• layer thickness, scan speed,...
• Send file to RP machine

Supports
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Material
Plastics polymers, ceramics clay,
bio-materials, eatables, metals alloys etc.
In form of liquid, solid or powder.
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Stereolithography (SLA)
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Laminated Object ManufacturingLOM
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Selective Laser Sintering
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Fused Deposition Modeling
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Solid Ground Curing
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SGC
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3D Printing
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Inkjets
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Laser Engineered Net Shaping TM
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Electron beam melting
SLS
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How 3D Printing Can Change the world?
APPLICATIONS

• Medical Surgury
• Health care
• Advances in research
• Product prototyping
• Historic Preservation
• Architectural Engineering Construction
• Advanced Manufacturing
• Food Industries
• Automotive
• Accessories
• Rapid Tooling Castings

• Machine Tool , Tool design
• Creativity, Innovation,
• Education , Schools,
• ART Culture
• Sculpture
• Space explorations,
• Automobile
• Police reconstruction
• Defense, Military
• Spirituality
• Textile,
• Film industry

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RECENT APPLICATIONS Solar printing
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RECENT APPLICATIONS House in MUD composite
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Rapidly expanding hobbyist and home-use market
has emerged using open-source RepRap and FabHome p
rojects. It is predicted that 3D printing could
become a mass market product enabling consumers
so that a person might instead print it at home
from a downloaded 3D model.
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THANK YOU ALL