Creating a Prototype Computer Integrated Manufacturing 2013 Project

Creating a Prototype Computer Integrated Manufacturing © 2013 Project Lead The Way, Inc.

What Is a Prototype? • Prototype – A full-scale working model used to test and improve a design concept by making actual observations and necessary adjustments

Prototyping by Hand • Prototypes can be produced by hand or machine • Hand-made prototypes come in many forms

Prototyping Example of Tool Holder Hand-Made Prototype Created Using a Rapid Prototype Machine Rapid Prototyped Part Became Final Product

Rapid Prototyping (RP) • Computer-controlled additive fabrication. • Family of fabrication methods to make engineering prototypes in minimum possible time based on a CAD model of the item Image courtesy of MSOE RPC

3 D Model to a Prototype • 3 D Part File • Prototype

Rapid Prototyping • The software slices a 3 D model into thin sections – Similar to a CT scan of the brain • The software creates one slice at a time, like stacking a deck of playing cards

3 D Printing • Rapid prototyping process that builds a part by ejecting adhesive bonding material onto successive layers of powders. • Note that this term is often used to describe all rapid prototyping processes.

Fused Deposition Modeling (FDM) • Rapid prototyping process in which a filament of wax or polymer is extruded onto the existing part surface from a workhead to complete each new layer.

Fused Deposition Modeling Video

Stereolithography (SLA) • A rapid prototyping process that fabricates a part layer-wise by hardening a photopolymer with a guided laser beam.

Stereolithography Video

Selective Laser Sintering (SLS) • A rapid prototyping process that used a moving laser beam to sinter heat-fusible powders one layer at a time.

Selective Laser Sintering Video

Laminated Object Manufacturing (LOM) • Rapid prototyping process in which sheet stock is cut and bonded into a stack.

Other Rapid Prototyping Processes • Additional metal RP technologies

References Custompart. net. (2009). Additive fabrication. Retrieved from http: //www. custompartnet. com/wu/additive-fabrication Groover M. P. (2012). Introduction to manufacturing processes. Hoboken, NJ: John Wiley & Sons, Inc. i. Stock (2013). Brain cat scan. Retrieved from http: //www. istockphoto. com/stock-photo-14280667 -braincat-scan. php i. Stock (2013). Ct scanner. Retrieved from http: //www. istockphoto. com/stock-photo-10301555 adaptive-cat-scanner. php? st=7 e 09 c 4 e Milwaukee School of Engineering. (2007). Rapid prototyping center. Retrieved from http: //www. rpc. msoe. edu/index. php