Selective laser melting (SLM) is one of the premier technologies, but how does it work? The parts are built up layer by layer in the powder bed. Selective laser melting is an additive production technique which makes 3D printing of metal parts possible.
Selective Laser Melting (SLM) is a particular rapid prototyping, 3D printing, or Additive Manufacturing (AM) technique designed to use high power-density laser to melt and fuse metallic powders.
A thin layer of powder is applied to the build platform in the first construction process step with a squeegee (or a combination of several squeegees). Selective Laser Melting (SLM) is an additive manufacturing process in which parts are built layer-by-layer by a scanning laser beam heating and binding powder. Additive manufacturing of metal parts is set to revolutionize how many things are made.
Selective laser melting uses a laser to melt successive layers of metallic powder.
Thereby, SLM enables the production of nearly unlimited complex geometries with-out the need of part-specific tooling or pre-production costs [4]. The laser will heat particles in specified places on a bed of metallic powder until completely melted.
Selective laser melting of aluminum alloys - Volume 42 Issue 4 - Nesma T. Aboulkhair, Nicola M. Everitt, Ian Maskery, Ian Ashcroft, Chris Tuck
Selective laser melting The additive manufacturing technology Selective Laser Melting makes it possibility to manufacture metal components layer by layer according to a 3D-CAD volume model. 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. Overview. The SLM®125 Selective Laser Melting Machine is accurate, compact metal 3D printing with low powder volume Size : 125 x 125 x 125 mm (4.9 x 4.9 x 4.9 in) Laser : 1x 400W The SLM®280 Selective Laser Melting machine provides a 280 x 280 x 365 mm process chamber. Material is heated locally and rapidly above melting temperature and then allowed to solidify and cool to form a dense geometry. That's what this article is all about. The process. Read more.
A thin layer of metal powder is selectively melted by a laser. 304L is chosen because it is a potential candidate to be used as a matrix in a metal matrix composite with nanoparticles dispersion for energy and high temperature applications. Process description. Selective Laser Melting, SLM, Direct Metal Laser Sintering, DMLS, Laser Cusing. Selective laser melting (SLM) process is a powder bed fusion technology; it uses a focused laser beam to melt consecutive layers of fine metal powder particles according to the cross-sectional profiles of a 3D computer aided design to manufacture three-dimensional components. Updated date as on - Feb 18, 2020 The overall selective laser sintering equipment market, inclusive of equipment and material, is expected to grow from USD 339.5 million in 2018 to USD 947.4 million by 2023, at a CAGR of 22.8% during 2018 - 2023.. By material, the metal-based SLS equipment is expected to achieve significant growth rate during the forecast period This third-generation system focuses on increased robustness and consistent performance including multi-beam laser technology optimized for production.Achieve greater component quality for complex, delicate, yet fast part builds. Selective laser melting is an additive manufacturing process used to build 3D metal objects using high-power laser beams. The prerequisite for printing is that the desired material is in fine powder form, and that there are 3D data on the part to be made. The CAD 3D file dictates where melting will occur. The role of volumetric energy density on the microstructural evolution, texture and mechanical properties of 304L stainless steel parts additively manufactured via selective laser melting process is investigated.
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