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Another approach is to use an electron beam to melt welding wire onto a surface to build up a part. [15] This is similar to the common 3D printing process of fused deposition modeling, but with metal, rather than plastics. With this process, an electron-beam gun provides the energy source used for melting metallic feedstock, which is typically ...
Hulamin is a South African company based in Pietermaritzburg that specialises in rolled aluminium products for precision and high technology applications. The company supplies a significant proportion of the world's ultra high-end aluminium products.
It is also possible to use conventional gas metal arc welding attached to a 3D stage to 3-D print metals such as steel, bronze and aluminum. [ 67 ] [ 68 ] Low-cost open source RepRap -style 3-D printers have been outfitted with Arduino -based sensors and demonstrated reasonable metallurgical properties from conventional welding wire as feedstock.
Mozal is an aluminium smelter joint project in Beluluane Industrial Park, Maputo, Mozambique. [2] The project is a smelting facility that began operations as a producer of aluminium exclusively for export. The smelter is located 20 kilometres (12 mi) west of the city of Maputo in the south of the country.
Aluminium in Africa originates from bauxite, and within Africa is primarily found in Guinea, Mozambique and Ghana. [1] Guinea is by far the biggest producer in Africa, and is a world leader in bauxite production. [2] There are many companies involved in the aluminium trade in Africa.
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
The melting point of aluminium oxide is 2050°C (2323K), much higher than pure aluminium's 658°C (931K). [6] This and the insulativity of aluminium oxide can make welding more difficult. In typical commercial aluminium anodizing processes, the aluminium oxide is grown down into the surface and out from the surface by equal amounts. [7]
Digital embossing allows for on-demand printing of as few as one item in thousands of copies. Digital embossing was invented by Scodix, [ 1 ] an Israel -based startup company that produces equipment for print enhancement applications in the commercial and packaging industries. [ 2 ]