Automated Construction by Contour Crafting Behrokh Khoshnevis University of Southern California - PowerPoint PPT Presentation

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Automated Construction by Contour Crafting Behrokh Khoshnevis University of Southern California

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Automated Construction by Contour Crafting Behrokh Khoshnevis University of Southern California Fabrication Processes Formative (pressing, forging, bending,..) – PowerPoint PPT presentation

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Title: Automated Construction by Contour Crafting Behrokh Khoshnevis University of Southern California


1
Automated Construction by Contour
CraftingBehrokh KhoshnevisUniversity of
Southern California
2
Fabrication Processes
  • Formative (pressing, forging, bending,..)
  • Subtractive (milling, turning, chiseling, sawing,
    stamping..)
  • Additive
  • Casting (requiring mold)
  • Traditional Layered Fabrication (only in manual
    construction)
  • Modern Layered Fabrication (SFF or RP)
    Technologies

3
Commercialized RP Technologies
4
SIS Selective Inhibition Sintering
5
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6
MPM Moldless Powder Metallurgy
7
(No Transcript)
8
Limitations of current SFF methods
  • Slow speed
  • Not scalable
  • Limited choice of materials
  • Impossible to embed other objects

9
What is Contour Crafting?
CC is a layered fabrication method which combines
ancient surface forming concepts with modern
robotics technology
10
A Scalable Process Ideal for Large Objects
Layer Height Several Centimeters Surface
Quality About 2 microns
11
A CC machine for thermoplastics
12
Nozzle Assemblies
13
Plastic Parts
14
CC Machine for Ceramics
15
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16
Process Machine Design Research
17
Movable Side Trowel
18
Building Various Surface Slopes
19
2.5D and 3D Objects
20
Slant Wall Fabrication
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