powder bed

powder bed

Etymology: L, pulvis, dust; AS, bedd
a treatment in which large areas of a patient's body are kept in contact with a powdered medication for a certain time. It is usually repeated three times a day, as necessary. A bed that has already been made is prepared by placing a full-sized sheet lengthwise over the linen. The powder is spread on the sheet from a shaker. The patient lies supine on the powdered sheet. Areas of skin that are apposed are separated with gauze, and powder is shaken over the patient's body. The powdered sheet is then wrapped around the limbs and the trunk from the side to keep the powder in contact with the body. The patient is virtually helpless during treatment and requires close attention from the nurse.
References in periodicals archive ?
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 Fusion 5.
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 additive manufacturing.
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.