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Selective laser melting or additive manufacturing, sometimes referred to as rapid manufacturing or rapid prototyping, is in its infancy with relatively few users in comparison to conventional methods such as machining, casting or forging metals, although those that are using the technology have become highly proficient [weasel words]. Like any ...
Direct metal laser sintering, or DMLS, uses a laser to sinter powdered metal into a solid object in gradual layers built upon each other. Cooling channels can be printed to any shape in this process, which lessens time and waste and improves quality. [2] Selective laser melting, or SLM, completely melts the powder to form a homogeneous part ...
Selective laser sintering enables the construction of complex shapes and models and the ability to create different food textures. It is limited by the range of suitable food materials, namely powdered ingredients. [2] Due to this limitation, selective laser sintering has been used primarily for creating sweets/candies.
Other trademarked techniques include direct metal deposition (DMD) and laser consolidation (LC). Compared to processes that use powder beds, such as selective laser melting (SLM) objects created with this technology can be substantially larger, even up to several feet long. [4]
Manufacturing techniques, similar to LRM, are being developed with different names at various laboratories, such as Laser Engineered Net Shaping (LENSTM) at Sandia National Laboratories (USA), Freeform Laser Consolidation at National Research Council (Canada), Selective Laser Powder Remelting (SLPR) at Fraunhofer Society (Germany), Selective Laser Cladding (SLC) at the University of Liverpool ...
Like other powder-bed processes, surface finish and accuracy, object density, and—depending on the material and process—part strength may be inferior to technologies such as stereolithography (SLA) or selective laser sintering (SLS). Although "stair-stepping" and asymmetrical dimensional properties are features of 3D printing as most other ...
An SLS machine being used at the Centro de Pesquisas Renato Archer in Brazil.. 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.
Selective laser melting (SLM) does not use sintering for the fusion of powder granules but will completely melt the powder using a high-energy laser to create fully dense materials in a layer-wise method that has mechanical properties similar to those of conventional manufactured metals.