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Showing 1 to 20 of 125 for “"SLM"”.
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Vývoj multimateriálového 3D tisku kovových dílů technologií SLM
… multimateriálových dílů vyrobených technologií SLM. V rámci práce jsou zkoumány materiály na bázi železa a mědi. Cílem práce je vytvoření kvalitního horizontálního a vertikálního multimateriálového rozhraní. V případě horizontálního rozhraní byly experimentálně stanoveny optimální procesní …
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Phase and Polarization Modulations based on LCOS SLM
… LCOS assembly processes. Phase-only LCOS SLM are becoming an important tool for laser processing in a range of systems. A recent breakthrough in laser-induced self-assembled nanostructure in glass has made it possible to store data in fused silica. The technology of 5D optical data storage …
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SLM 125 Single Track and Density Cube Characterization for 316L Stainless Steel
<p>Selective Laser Melting is a rapidly developing additive manufacturing technique that can be used to create unique metal parts with tailormade properties not possible using traditional manufacturing. To understand the process from a most basic level, this study investigates system capabilities …
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Residual stress measurement and structural integrity evaluation of SLM Ti-6Al-4V
… (AM) arena from which Selective Laser Melting (SLM) has emerged as a promising candidate for producing highly complex components. Selective Laser Melting is a laser-based AM technique which builds 3-dimensionsal parts from CAD models in a layerwise fashion...
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Strategies for the Characterization and Virtual Testing of SLM 316L Stainless Steel
The selective laser melting (SLM) process allows for the control of unique part form and function characteristics not achievable with conventional manufacturing methods and has thus gained interest in several industries such as the aerospace and biomedical fields. The fabrication processing …
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Requirements of Slm Proteins For Proper Organization of Eisosome, Endocytic Trafficking, and Recycling
… and internalize extracellular components. Slm1 has been identified as a component of eisosome, a static site for endocytosis. Previous studies have shown colocalization between Sur7, an eisosome component with Slm1 and Pil1. Here, I found that Slm1 and Pil1 partially colocalize with each …
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Effects of Support Structure Geometry on SLM Induced Residual Stresses in Overhanging Features
<p>Selective laser melting (SLM) is a new and rapidly developing manufacturing method for producing full-density, geometrically complex metal parts. The SLM process is time and cost effective for small-scale production; however, wide-spread adoption of this technique is severely limited by residual …
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Influence of laser scan rate on the mechanical properties of SLM TI6AL4V alloy
… samples produced by the selective laser melting (SLM) process from a Grade 5 Ti6Al4V metal powder; the laser scan speed was varied from 1.5 m/s to 4 m/s, while other process parameters were kept constant. Test procedures and specimens were designed in accordance with the ASTM E8/E8M, ASTM E399 and …
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Fracture mechanics based fatigue and fracture toughness evaluation of SLM Ti-6Al-4V
… alloy manufactured by Selective Laser Melting (SLM). Three build orientations are considered where a fatigue crack is grown parallel and two are grown perpendicular to the build orientation. The project then endeavours to generate a fracture mechanics based Paris equation from the fatigue crack …
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Evaluation on performance of square finned conformal cooling channel (sfccc) fabricated by selective laser melting (slm) on plastic moulded part
… Speed Machining and Selective Laser Melting (SLM)), and tested using a front panel housing as the injected part for the case study. Eight types of variate SFCCC design (SFCCC 1 to SFCCC 8) employing finned and sub groove concept were analysed via simulation work to determine the best design in …
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Manufacturing and properties of titanium-based materials produced by selective laser melting
… the results of using selective laser melting (SLM) to produce commercially pure titanium (CP-Ti) parts. Accurate manipulation of SLM parameters is applied to produce nearly fully dense (>99.5%) CP-Ti parts without any posttreatments. Compared with output from traditional technologies, the …
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The Diode Laser Source and the Spatial Light Modulator's Driver Electronics for Miniaturized Holographic 3D Imaging
… electronics of the spatial light modulator (SLM) for holographic, three dimensional (3D) imaging. A miniaturized laser diode/fiber/polarizing illumination system capable of 15mW of output at a wavelength of 690nm is designed, fabricated, and tested. The size limitations of various …
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A precision blade mechanism for powder recoating in Selective Laser Melting
Selective Laser Melting (SLM) is an industrially viable means of additively manufacturing metal components with complex geometries from a wide variety of alloys. In this process, a metal powder is spread onto a build surface in a thin layer, and then the powder is selectively melted to form a …
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Testbeds for quality and porosity control in metal additive manufacturing by selective laser melting
Selective laser melting (SLM) is a metal additive manufacturing process that can achieve high local density and near-net shape geometric accuracy. The dynamics of the meltpool and stability of the melt track upon cooling are critical to the microstructure, porosity, and final properties of the …
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Fabrication, Validation, and Performance Evaluation of a New Sampling System for the In-Situ Chemical Speciation of Chromium Ions in Groundwater Using Supported Liquid Membranes (SLMs)
… is based on the Supported Liquid Membrane (SLM) extraction technique, which utilizes charged organic carrier molecules loaded onto a polymeric (Teflon®) support membrane and the principles of electrostatics to selectively transport Cr ions through an ion-pairing mechanism. Cr ions in the …
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Novel Optical Technique for Real-Time Pattern/Image Recognition
… systems make use of a spatial light modulator (SLM) located in the Fourier plane to record the interference intensity to achieve real-time processing. However, the use of a SLM in the Fourier plane, is a major drawback in these systems since SLMs are limited in resolution, phase uniformity and …
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An analysis and implementation of linear derivation strategies
… SL -resolution, (v) the GC procedure, and (vi) SLM. The analysis is focused on the different restrictions and operations employed in each derivation strategy. The selection function, restrictive ancestor resolution, compulsory ancestor resolution on literals having atoms which are or become …
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Nonlinear algorithms for fast and robust control of electrical drives
… (I-P) control, sliding mode control (SLM) and adaptive control which uses the torque and parameter observer. To achieve fast and robust response, all algorithms use very large gains. In a new, variable limit PI (VLPI) control algorithm, integrator windup is completely prevented by …
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Surface integrity and energy consumption in machining of inconel 718 produced by selective laser melting
… done to characterize surface integrity of an as-SLM part followed by milling (e.g., hybrid SLM-milling). In this paper, surface integrity including surface roughness, microstructure, and microhardness have been characterized for the IN718 samples processed by the hybrid process. It has been found …
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