laser powder bed fusion
Analytical Modeling of Residual Stress in Laser Powder Bed Fusion
... In this study, the physics-based prediction modeling methodology is implemented in the cased of laser powder bed fusion of maraging steel 350 (18Ni350 or M350) as a material of example. ...
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Benchmarking of Laser Powder Bed Fusion Machines
... Abstract: This paper presents the methodology and results of an extensive benchmarking of laser powder bed fusion (LPBF) machines conducted across five top machine producers and two end users. ...
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Feature based characterisation of signature topography in laser powder bed fusion of metals
... Abstract. The use of state-of-the-art areal topography measurement instrumentation allows for a high level of detail in the acquisition of topographic information at micrometric scales. The three-dimensional geometric ...
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Characterization of 316L Spatter Particle Morphologies Produced during Laser Powder Bed Fusion Additive Manufacturing
... Laser powder bed fusion additive manufacturing (PBF AM) uses atomized metal powder as input feedstock for part production by spreading the powder into thin, sequential layers ...
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Construction of Cellular Substructure in Laser Powder Bed Fusion
... Abstract: Cellular substructure has been widely observed in the sample fabricated by laser powder bed fusion, while its growth direction and the crystallographic orientation have seldom been ...
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Additive manufacturing of glass with laser powder bed fusion
... tailoring laser powder bed fusion and postprocessing methods to suit partic- ular applications for example, partially fused powder particles could act as baffles in micro‐fluidic ...
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Using laser ultrasound to detect sub surface defects in metal laser powder bed fusion components
... Laser powder bed fusion offers many advantages over conventional manu- facturing methods, such as the integration of multiple parts that can result in significant ...assured. Laser ...
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Automatic quality assessments of laser powder bed fusion builds from photodiode sensor measurements
... This study evaluates whether a combination of photodiode sensor mea- surements, taken during laser powder bed fusion (L-PBF) builds, can be used to predict the resulting build quality via a ...
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Residual Stress-induced Distortions in Laser Powder Bed Additive Manufacturing of Nickel-based Superalloys
... Laser powder bed fusion (LPBF) is a powder bed additive manufacturing (AM) process used for the production of three dimensional (3D) parts from a wide range of powder ...
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Electropolishing of Laser Powder Bed-Fused IN625 Components in an Ionic Electrolyte
... Almost all three-dimensional (3D)-printed metal parts require surface finishing to meet performance standards. Efforts to develop surface finish techniques for parts that are manufactured by metal laser ...
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Internal surface measurement of metal powder bed fusion parts
... metal laser powder bed fusion (LPBF) hollow artefact was measured using two commercial XCT systems (labelled “XCT 1” and “XCT 2” respectively), as well as by two non-contact optical ...
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Material interactions in laser polishing powder bed additive manufactured Ti6Al4V components
... the laser polished ...raster’ laser scanning direction during ...the fusion boundary in titanium alloys as there is not a clear metallurgical transition between the parent and melted material due to ...
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Mechanical Properties and In-Situ Deformation Imaging of Micro-Lattices Manufactured by Laser Based Powder Bed Fusion
... mechanical properties of these small lattices is reported and in-situ imaging of the lattice deformation. 87[r] ...
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Targeted rework strategies for powder bed additive manufacture
... the finer lamellar microstructure characteristic of SLM by reducing the yield strength [7]. It has been shown that these voids can present in a range of sizes, <5 – 500 μm [9], and can either spread throughout the ...
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Crystallographic Features of Microstructure in Maraging Steel Fabricated by Selective Laser Melting
... is powder bed fusion (PBF) [2] in which the powder particles of metals (alloys) are melted and fused using either laser or electron ...selective laser melting (SLM), selective ...
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Selective Laser Sintering of Porous Silica Enabled by Carbon Additive
... Silica powder (SS1206, Industrial Powder, USA) was used for this ...silica powder is in spherical shape ( ...by laser diffraction on LS 100 Q, Coulter International Corporation, ...carbon ...
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A Way to Realize Controlled Nuclear Fusion by γ Laser or γ Ray
... ordinary laser with their certain frequencies and large enough intensities to irradiate a target ...ordinary laser is to heat target nuclei and to realize the inertial confinement for the plasma composed of ...
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LASER FUSION FOR GENERATION OF ELECTRICAL POWER
... to fusion temperatures The high power lasers currently avai1able are having wavelengths greater than 1 micron, but optimum wavelength required for laser fusion is generally estimated to be ap- ...
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KrF Laser Development for Fusion Energy
... KrF laser technology to meet requirements of rep-rate, effi- ciency and durability for a laser fusion energy ...high laser wall plug efficiency with ad- vance target designs should make inertial ...
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Modelling of Metallic Particle Binders for Increased Part Density in Binder Jet Printed Components
... replicate powder bed densities similar to those used in additive manufacturing ...The powder bed model is validated against helium pycnometry density ...simulated powder beds (with ...
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