Low-temperature sintering of bauxite-based fracturing …
The simultaneous addition of CaO and MnO 2 caused a low-temperature liquid phase to form and more effectively decreased the sintering temperature of proppants than …
(PDF) SELECTIVE LASER SINTERING PROCESS -A REVIEW
Study of Mechanical and Structural properties of PCL/TCP composite using Selective Laser Sintering. Conference Paper. Full-text available. Oct 2017. Negi Anjali. Mandar Mukundrav Sumant. View ...
Selective laser sintering (SLS)
Realising functional plastic components directly from 3D data. Selective laser sintering, abbreviated SLS, is the most frequently used additive layer construction process in the industrial sector. The starting materials are various plastics in powder form. Depending on the area of application of the manufactured component, it is chosen between ...
What Is Selective Laser Sintering 3D ?
SLS , or SLS 3D is an additive manufacturing (AM) technique. Selective laser sintering process uses high-power lasers to sinter small particles of polymer powder into a 3D three-dimensional structure. Powder materials sinters and builds layer by layer. SLS is widely used, and it is also equipped with machinery, materials, and software.
What is selective laser sintering (SLS)?
Selective laser sintering (SLS) is a powder-based additive manufacturing process. Layer by layer, three-dimensional objects are created from diverse materials directly from 3D model data. The starting material for laser sintering is a plastic powder which is applied in thin layers to a platform and melted locally by a laser. The base ...
laser sintering proppants
The Chemical and Thermal Stability of Proppants Under. Feb 2 Dissolution of sintered bauxite proppant was 30/60 sintered bauxite proppant sieve data Microscope at the Dixon Laser Institute at the
laser sintering proppants
laser sintering proppants The normal spectral absorptance of a number of metal, ceramic and polymer powders susceptible to be utilised for selective laser sintering (SLS) technique was …
Guide to Selective Laser Sintering (SLS) 3D
Selective laser sintering is an additive manufacturing (AM) technology that uses a high-power laser to sinter small particles of polymer powder into a solid structure based on a 3D model.. SLS 3D has been a popular choice …
Plastic laser sintering SLS® 3D printers | Prodways FR
Prodways developed premium industrial plastic laser sintering 3D printers as a result of our technological R&D partnership and our internal Research & Development capabilities. ProMaker P Series industrial plastic 3D printers …
Selective Laser Sintering (SLS) 3D : Everything You Need …
Selective Laser Sintering (SLS) refers to an additive manufacturing technique that uses a laser power source to sinter or bind finely powdered particles together to create solid structures based upon a 3D model. This process involved a printer laying down even layers of powder and then precisely sintering that powder until each part was ...
Laser Sintering Materials
Selective Laser Sintering (SLS or LS) works with standard nylon 11 and nylon 12 materials and a variety of reinforced polyamides with specialized properties like improved tensile strength, heat resistance, biocompatibility, rigidity or …
US9499443B2
An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass through a first central portion of the first vortex gas flow and exit the second end of the first cylindrical vessel and/or pass through a second central portion of the second vortex flow and exit the fourth end of the second …
Low‐temperature sintering of ceramic proppants by adding solid …
The results show that the main crystal phases are corundum and mullite, and the most suitable sintering temperature is 1250°C. At the sintering temperature apparent density is 2.84 g/cm …
Low‐temperature sintering of ceramic proppants by adding solid wastes
Low-density bauxite-based ceramic proppants were prepared at sintering temperatures below 1300°C by adding solid wastes coal gangue and magnesium slag. The addition of solid wastes greatly decreases sintering temperature and preparation cost. The density and strength of ceramic proppants were tested according to the standard, and the ...
What is selective laser sintering (SLS)?
Selective laser sintering (SLS) is a powder-based additive manufacturing process. Layer by layer, three-dimensional objects are created from diverse materials directly from 3D model …
Laser Sintering: What Is It?
A laser sintering 3d printer is often used to develop robust parts, parts that can be tested or have end-use application. Several laser sintering 3d printer systems have a central build area with repositories for powder material …
Selective Laser Sintering (SLS) Overview | 3D Systems
S elective L aser S intering (SLS) is a powder-based 3D technology that uses a laser to fuse material layers into a final part. The laser traces the pattern of each cross section of a 3D design onto a bed of powder. After one layer is built, the build platform lowers and another layer is built on top of the previous layer. Th is process continues until every layer is built and the ...
Selective laser sintering
Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined …
laser sintering proppants
The sintering procedure can lead to compaction of the proppants. The sintering of proppants can take place in a sintering oven or furnace, for example, at temperatures from about 1200° …
Laser Sintering
What Is Laser Sintering? This is the process of using a high-powered laser to fuse (or sinter) materials together. These materials come in the form of powders, and the laser works layer by layer through the powder to form an object. The lasers pinpoint particles to fuse together, following the design files given.
Histological Evidence of the Osseointegration of Fractured Direct Metal
Background: Direct metal laser sintering (DMLS) is an additive manufacturing technique that allows the fabrication of dental implants layer by layer through the laser fusion of titanium microparticles. The surface of DMLS implants is characterized by a high open porosity with interconnected pores of different sizes; therefore, it has the potential to enhance and …
What is Selective Laser Sintering? | Live Science
The laser heats the powder either to just below its boiling point (sintering) or above its boiling point (melting), which fuses the particles in the powder together into a solid form.
laser sintering proppants
the purpose of pelletization prior to sintering. At the same time, its sphericity is low, which will cause larger wear on fracturing strings, pump heads and perforations [24]. Therefore, more ceramic proppants are used for deep wells. Ceramic proppants generally use bauxite as raw material and is obtained by sintering with … Get price
(PDF) SELECTIVE LASER SINTERING PROCESS -A …
Study of Mechanical and Structural properties of PCL/TCP composite using Selective Laser Sintering. Conference Paper. Full-text available. Oct 2017. Negi Anjali. Mandar Mukundrav Sumant. View ...
laser sintering proppants
These proppants are not only ultra lightweight but also are much stronger than any other existing proppant material Direct Selective Laser Sintering of Metals More Control the Quality of Your …
Preparing high-strength and low-density proppants with oil …
To determine the effects of sintering temperature, sintering time, and sintering rate on the physical–mechanical performance of proppants and provide a reasonable level range for the design of RSM, proppants were sintered at 1280–1360 °C at a heating rate of 1–9 °C·min −1 and maintained at the highest temperature for 0.5–2.5 h.
Laser Sintering: What Is It?
A laser sintering 3d printer is often used to develop robust parts, parts that can be tested or have end-use application. Several laser sintering 3d printer systems have a central build area with repositories for powder material on each side of the build area. A roller spreads a layer of power from either repository onto the build table.
Direct metal laser sintering titanium dental implants: a review …
Direct metal laser sintering (DMLS) is a technology that allows fabrication of complex-shaped objects from powder-based materials, according to a three-dimensional (3D) computer model. With DMLS, it is possible to fabricate titanium dental implants with an inherently porous surface, a key property required of implantation devices. ...
Selective laser sintering
Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure. It is similar to selective laser melting; the two are instantiations of the …
US9499443B2
An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass through a first central portion of the first …
Machine learning-based microstructure prediction during laser sintering
During a typical laser sintering experiments, alumina paste is casted on a fused silica substrate, using doctor's blade, with a thickness of about 500 μm.
Selective Laser Sintering (SLS): Everything you need to know
Selective Laser Sintering process is a powder-bed technology, in opposition to some 3D methods such as FDM or SLA, you don't need to create support structures for your parts. The powder will act as a natural support, less chance of damaging the intricate interior geometries that 3D is capable of making because the support ...
What is Selective Laser Sintering (SLS)?
Selective laser sintering (SLS) is a 3d process (additive manufacturing) that uses high-powered lasers to sinter, or bind, finely powdered material together into a solid structure. In this process, a printer lays down an even layer of powder and then precisely sinters that layer, repeating the deposition and sintering process until the ...
laser sintering proppants
The sintering-strengthening effect of the additions of the highly ferrous bauxite (with Fe 2 O 3 content of 20-25 % in the calcined state) in the compositions with refractory clays was …
laser sintering proppants
a laser sintering technique for manufacturing items on a movable sintering platform: wo/2014/118783: august, 2014: three-dimensional conductive patterns and inks for making same: wo/2014/144255: september, 2014: laser sintering apparatus and methods: wo/2015/023612: february, 2015: additive fabrication of proppants. Read More...