Adira, a Portuguese producer of business manufacturing machines, is testing a prototype of a brand new SLM 3D printer for constructing massive and high-density metallic elements.
The challenge titled SLM-XL is carried out in collaboration with Universidade Nova de Lisboa’s engineering and know-how faculty Instituto Superior Técnico (TECNICO LISBOA) and Manuel Conceição Graça (MCG), a Portuguese engineering agency.
SLM-XL is funded by the European Regional Improvement Fund (FEDER) by means of POR Lisboa 2020 and Programa Operacional Factores de Competitividade (COMPETE). The SLM-XL challenge may even see the finalization of Adira’s prototype machine.
Prototype of the Adira SLM machine. Picture by way of Adira.
Additive manufacturing with Tiled Laser Melting
Based in 1956, Adira manufactures industrial manufacturing machines, reminiscent of press brakes, laser cutters, and shears. Along with this, Adira additionally gives software program options like Adbendpro, a 3D modeling software program, and Cidcut, a CAM programmer for laser slicing machines.
In 2017, the Portuguese producer additionally launched a metallic 3D printer, the AddCreator, which makes use of Adira’s proprietary know-how often known as Tiled Laser Melting (TLM). An revolutionary facet of this method is its movable construct chamber which strikes to a brand new location after printing a ’tiled section’ of the element. This enables the machine to construct massive metallic elements.
In SLM-XL two points in powder mattress fusion (PBF) 3D printing have been addressed: low density of the 3D printed elements, and limitations of the construct dimension.
Porosity and keyhole formation are two components which contribute to density issues. Understanding of those points in metallic 3D printing remains to be restricted. Density issues might be solved by treating the metallic printed half with a scorching isostatic stress (HIP) machine. However this can be a time-consuming additional step and has important prices.
Within the SLM-XL program, imaging and scanning methods have been used to check the correlation between the density of a component and course of parameters of the machine. It was concluded that to make sure greater than 99% density of a component as massive as 1 m³ in quantity, parameters of the machine have to be adjusted as printing reaches the outer bounds of the element.
Within the current consortium, a prototype of Adira’s new SLM machine was examined utilizing 316 L chrome steel, a generally used metallic alloy. The analysis additionally proposed a methodology to regulate the machine parameters.
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Featured picture reveals a prototype of the Adira SLM machine. Picture by way of Adira.
Credit score : Supply Hyperlink