Additive Manufacturing of high-performance ceramics€¦ · Lithoz is the system provider for...
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Martin Schwentenwein Additive Manufacturing of high-performance ceramics Wiener Neustadt, 2017-10-17
Transcript of Additive Manufacturing of high-performance ceramics€¦ · Lithoz is the system provider for...
Martin Schwentenwein
Additive Manufacturing of
high-performance ceramics
Wiener Neustadt, 2017-10-17
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Contents
Lithoz
AM of ceramics
Lithography-based ceramic manufacturing
Examples and first applications
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About Lithoz
Lithoz is the system provider for additive manufacturing of high-performance and biocompatible ceramics
Focusing on high-performance applications
Market and innovation leader in AMT for dense and precise ceramic parts
Development , production and sale of
machine and material
Customized solutions
St. Stephen’s Cathedral in Vienna
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High-performance ceramics
High temperature resistance
High hardness
High modulus
High wear resistance
Good insulating properties
Oxidation resistance
Chemical durability
Biocompatibility
Blood pump (Al2O3)
Bone graft (Tricalcium phosphate)
Macroporous designs (Al2O3)
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Laser beam melting
Binder jetting
Direct inkjet techniques
Extrusion-based techniques (FFF,
robocasting, T3DP)
Lithographic techniques
AM of ceramics
direct
indirect
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LCM-Technology
LCM: Lithography-based Ceramic Manufacturing
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AM process
Layerwise buildup of 3D structures
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Photopolymerization
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Process
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Thermal postprocessing
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CeraFab-Systems
CeraFab 7500 & 8500
Property CeraFab 7500 CeraFab 8500
Lateral resolution
40 μm 60 μm
Layer thickness 10 – 100 μm
Number of pixels (X,Y)
1920 x 1080
Building envelope (X,Y,Z)
76 x 43 x 170 mm 115 x 64 x 170 mm
Building speed Up to 100 layers/h 2,5-10 mm layers/h
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Available materials
Research material
Alumina
Zirconia
Silicon nitride
Silica
Tricalcium phosphate
Porcelain
Cordierite
Hydroxyapatite
Cermets
Dielectric ceramics
Preceramic polymers
Standard materials
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Sample parts
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Reproducibility
Struts (X) Struts (Y) Pores (X) Pores (Y)
Average [µm] 526 520 373 374
Stdev [µm] 9 10 10 14
Rel. Stdev 2% 2% 3% 4%
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Materials
High performance ceramics: alumina
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Applications - Biomedical
Resorbable implants
Material: Tricalcium phosphate (TCP)
Resorbable screws
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Summary
Different AM techniques for different purposes
LCM process for precise and strong components
Mechanical properties at eye-level to conventional processes
Limitations in size
Ceramic design necessary
application development necessary
