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ADDITIVE MANUFACTURING – 3D PRINTING TECHNOLOGIES
1. 3D printing (3DP) basics2. Applications3. Dow offerings
OVERVIEW
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3D PRINTING (3DP) BASICS
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ADDITIVE MANUFACTURING
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Binder jetting Material extrusion Direct energy deposition Material jetting Powder bed fusion Sheet lamination Vat photo-polymerization
Material design Geometry design Performance modeling Prototyping verification
Ceramics Thermoplastics and
thermosets Powder metals Powder sands, plaster
and starches Wax and photopolymers Sheet form paper Light-cured polymers
Process design Application engineering Material
BASIC 3D PRINTING METHODS
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Binder jetting (BJ)Gluing of ceramics, metals, sand, plastics
Laser melting (LM)Melting of ceramics/metals
Electron beam melting (EBM)Melting of metals
Stereolithography (SL)Polymerization of plastics
Photopolymer jetting (PJ)Polymerization of plastics
Laser sintering (LS)Melting of plastics
Material jetting (MJ)Melting of waxes
Fused deposition modeling (FDM)Melting/extrusion of plastics
Additive manufacturing (3D printing) makes sense when a product creates value for a customer/user from one or all of the following attributes:• 3D prototype to injection-molding
manufacturing• Highly/mass-customized
(low-volume/small-batch) manufacturing• Highly complicated or
customized design
WHY IS 3DP INTERESTING FOR MANUFACTURING?
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No tooling investment required Reduced time to market On-demand production of parts Part customization with no
manufacturing penalty Having fewer design constraints allows
for complex geometries
ADDITIVE MANUFACTURING ADVANTAGES
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APPLICATIONS
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Mobility Replacement parts, lighter components, customization
Consumer products Customization
Wearables Customization
Baby care Customization
Lighting Small production batches
Shoe wear Customization
PCB systems assembly Smaller devices, customization
Industrial Prototypes
MAIN APPLICATIONS
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DOW OFFERINGS
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LOW-COST INTEGRATION AND VALUE-ADDED INNOVATION
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Feed
stoc
k an
dsi
te in
tegr
atio
n
Positioned to capitalize on global growth trends
High-throughput research
Polymer science
Material science
Formulation sciences
Process engineering
Target marketsBuilding blocks Product development
Tech
nolo
gy c
apab
ilitie
s
High-performancecomputer modeling
Solu
tions
Mat
eria
l pla
tform
sCatalyst discovery & ligand synthesis
Application development
Urbanization Digitalization Sustainability
Cellulosics
Acrylics
Polyolefins and elastomers
Ethylene oxide
Propylene oxide
Silicones
Various othersConsumer
Packaging
Globalization
Infrastructure
WHY SILICONE?
Strong interest in printing with “final part” or functional materials
Silicones have established value in applications/markets that are actively experimenting with 3DP(for final parts and prototyping)
Mechanical properties of printed samples in good agreement with conventional processing
Emerging materials
Electrically conductive materials Silicone
Biomaterials
Carbon fiberRegolith
Ceramics
Graphene
Consumer goods High-performance buildingsMobility Consumer and communication
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Material extrusion Heat-cured liquid silicone rubbers (LSRs) Moisture-cure room-temperature-vulcanization
(RTV) silicone system Thermoplastic elastomers
3DP TECHNOLOGY – SILICONE SOLUTIONS
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First commercial product
SILASTIC™ 3D 3335 Liquid Silicone Rubber
Features An LSR elastomer for general-purpose materials suitable for a wide
range of typical silicone rubber applications – 50 Shore A hardness Low viscosity for smooth printing Unique rheology for high resolution and accuracy
Benefits Allows part design flexibility Enables achievement of mechanical properties closely matching those
of molded liquid silicone rubber Direct transfer into high-volume injection-molding processes High-performance silicone elastomer parts – customized and/or new design Preparation of silicone rubber prototypes with properties that are comparable to injection-molded
components
SILASTIC™ 3D 3335 LIQUID SILICONE RUBBER – PRODUCT DETAILS
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The technology can significantly reduce production waste, optimize the supply chain, eliminate tooling and speed the time to market for new designs unachievable through conventional technology.
Finished parts from the Liquid Additive Manufacturing (LAM) 3D Printer can withstandUV rays.
You can now combine the uniquely beneficial properties of the already-qualified silicones with faster prototype development and small-series production of highly complex parts.
SILASTIC™ 3D 3335 LIQUID SILICONE RUBBER – USPS
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SILASTIC™ 3D 3335 LIQUID SILICONE RUBBER – CURE PROFILE
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Same sharp cure profile as injection-molding LSR measured with MDR
Moving Die Rheometer (MDR) is a rotorless curemeter designed according to ASTM D5289 and ISO 6502 to test mixed rubber. MDR is capable of measuring rubber compound cure under isothermal test conditions with constant strain and frequency.
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9.90
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1.98
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Drehmoment [dNm]
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