EML 2023

Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
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 additive technique
 layer of powder placed on base
 high power laser used to fuse
selected parts of the powder
 the powder bed is lowered a
small amount and a new layer of powder is
spread
 does not require any support structures
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Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
4

 additive technique
 material is laid down in layers
 plastic material is melted in
a nozzle that moves in XY
direction
 typically uses ABS plastic
 support material is required
stratasys
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Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
6

 additive process
 uses a vat of liquid UV-curable
resin and a UV laser
 exposure to the laser causes
the material to harden
 after a pattern has been traced,
the platform descends and a
resin filled blade recoats the top
 requires support structures
7

Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
8

 sheet is adhered to substrate
with a heated roller
 laser traces out the outline
of the layer
 non-part areas are cross-
hatched to facilitate removal
of waste material
 next layer is pulled across and the process is
repeated
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Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
10

 metal parts are made from a metal powder
 a layer of powder is spread and the part
region is melted together by a computer
controlled electron beam
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Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
12

 “inkjet” type process
 a fine powder of plaster or corn starch is
bonded by “printing” an adhesive from the
printhead
 considered the fastest technique
zcorp 13

Prototyping Technologies Base Materials
Selective laser sintering (SLS) Thermoplastics, metal powders
Fused deposition modeling (FDM) Thermoplastics, eutectic metals
Stereolithography (SLA) Photopolymer
Laminated object manufacturing (LOM) Paper
Electron beam melting (EBM) Titanium alloys
3D printing (3DP) Various Materials
14

 Dimension Uprint (Soluble SupportTechnology)
Building MAE-B
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868”
build volume
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