Transcript Polymer Properties

Rapid Prototyping
ISE 240
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Processing of RP
Parts
FIGURE 10.46 The computational steps
involved in producing a stereolithography
file. (a) Three-dimensional description of
the part. (b) The part is divided into slices.
(Only 1 in 10 is shown.) (c) Support
material is planned. (d) A set of tool
directions is determined for manufacturing
each slice. Shown is the extruder path at
section A-A from (c), for a fused-deposition
modeling operation.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Rapid Prototyping Processes
TABLE 10.7
processes.
Characteristics
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
of
rapid-prototyping
RP Materials
TABLE 10.8 Mechanical properties
of selected materials for rapid
prototyping.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Stereolithography and FDM
FIGURE 10.47 Schematic illustration of the
stereolithography process. Source: Courtesy of
3D Systems.
FIGURE 10.48 (a) Schematic illustration
of
the
fused-deposition
modeling
process. (b) The FDM Vantage X rapid
prototyping machine. Source: Courtesy of
Stratasys, Inc.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Support Structures
FIGURE 10.49 (a) A part with a protruding section that requires support material. (b) Common
support structures used in rapid-prototyping machines. Source: After P.F. Jacobs.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Selective Laser Sintering
FIGURE 10.50 Schematic illustration of the selective-laser-sintering process. Source: After C. Deckard and P.F. McClur
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Three-Dimensional Printing
FIGURE 10.51 Schematic illustration of the threedimensional-printing process. Source: After E. Sachs
and M. Cima.
FIGURE 10.52 (a) Examples of parts produced
through three-dimensional printing. Full color
parts also are possible, and the colors can be
blended throughout the volume. Source:
Courtesy ZCorp, Inc.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
3D Printing of Metal Parts
FIGURE 10.53 The three-dimensional printing process: (a) part build; (b) sintering, and (c)
infiltration steps to produce metal parts. Source: Courtesy of the ProMetal Division of Ex One
Corporation.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Sprayed Metal Tooling Process
FIGURE 10.55 Production of tooling for injection molding by the sprayed-metal tooling process. (a) A pattern and base
plate are prepared through a rapid-prototyping operation; (b) a zinc-aluminum alloy is sprayed onto the pattern (See
Section 4.5.1); (c) the coated base plate and pattern assembly is placed in a flask and back-filled with aluminumimpregnated epoxy; (d) after curing, the base plate is removed from the finished mold; and (e) a second mold half
suitable for injection molding is prepared.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7
Example: RP Injection Manifold
FIGURE 10.56 Rapid prototyped model of an injection-manifold design,
produced through stereolithography. Source: 3D Systems.
Manufacturing Processes for Engineering Materials, 5th ed.
Kalpakjian • Schmid
© 2008, Pearson Education
ISBN No. 0-13-227271-7