The report analyses in depth the use of polymers in all major 3D printing processes from leading vendors: Fused Deposition Modeling, Stereolithography, Selective Laser Sintering, binder jetting, PolyJet, and others encompassing material extrusion, polymer powder bed
fusion, photopolymerization, material jetting, and binder jetting.
Toshiba Machine) have jointly developed a prototype of a three-dimensional (3D) metal printer that delivers fabrication speeds more than 10 times faster than that of powder bed
fusion printers, the most widely used methodology for metal sintering The new printer will be showcased at Monozukuri Matching Japan 2015 at Tokyo Big Sight from December 2 to 4.
1 Next Generation of 3D Printing in Jewelry: Direct Fabrication Via Powder Bed
In terms of process technology, vat photo polymerization and powder bed
fusion based 3D printers, cumulatively captured majority share in global 3D printers market in 2014.
With so-called "metal powder bed
fusion" techniques--also called laser melting, selective laser melting or direct metal laser sintering (DMLS)--a laser or other heat source binds the materials together in a micro-welding procedure according to a 3-D model that is sliced into thin layers.
The PurePower engine family parts will be the first product produced using 3D printing powder bed
In particular, the ability of dynamic testing to measure the strength of a crust within a powder bed
, as a function of bed height, provides unique insight into the effect of moisture absorption on caking behaviour.
2 lb/h, which is said to provide a process that is 10x faster than producing parts using a laser and a powder bed
The driving force in LS is the temperature increase in the powder bed
caused by laser exposure.
Two types of metal powders, made via gas atomization and used in a commercial laser powder bed
direct metal laser sintering (DMLS) additive manufacturing system, were examined in this study:
The AM process works directly from the Computer Aided Design model (3D CAD) and orients the components and slices the CAD data into layers which are then drawn in the build using a laser onto a powder bed
containing fine metallic particles.
Guided by CAD software, a laser fuses successive layers of a powder bed
at selected points, growing the parts layer by layer.