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The printer deposits the metal-infused filament layer by layer, building up the shape of the part. These printed parts are referred to as "green" parts. To compensate for predictable shrinkage during the subsequent sintering process, the green parts are scaled up by 15-20% from their final dimensions. [1]
Electron-beam additive manufacturing, or electron-beam melting (EBM) is a type of additive manufacturing, or 3D printing, for metal parts.The raw material (metal powder or wire) is placed under a vacuum and fused together from heating by an electron beam.
A variant used for 3D shapes is called hot isostatic pressing. To allow efficient stacking of product in the furnace during sintering and to prevent parts sticking together, many manufacturers separate ware using ceramic powder separator sheets. These sheets are available in various materials such as alumina, zirconia and magnesia.
Finally, after thermal debinding and sintering, near net-shape metal parts are produced. The system was announced in 2017 [26] and launched in 2018, consisting of the Metal X printer, Wash-1 debinding station, and Sinter-1 furnace. The Metal X printer has a build volume of 300mm x 220mm x 180mm.
3D printing [3] Direct metal laser sintering [4] Filament winding, produces composite pipes, tanks, etc. [3] Fused deposition modeling [3] Inkjet Printing [5] Laminated object manufacturing [3] Laser engineered net shaping [3] Layered manufacturing [3] Rapid Induction Printing; Selective laser sintering [3] Spark plasma sintering ...
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.
The process starts by slicing the 3D CAD file data into layers, usually from 20 to 100 micrometers thick, creating a 2D cross-section of each layer; this file format is the industry standard .stl file used on most layer-based 3D printing or stereolithography technologies. This file is then loaded into a file preparation software package that ...
Rapide 3D has designed a professional grade crowdsourced 3D-printer costing $1499 which has no fumes nor constant rattle during use. [94] The 3Doodler "3D printing pen", a handheld 3D pen, raised $2.3 million on Kickstarter with the pens selling at $99, [95] though the 3D Doodler has been criticized for being more of a crafting pen than a 3D ...
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