New Machines and Powders For Laser Sintering

A small laser-sintering system that produces nylon or polystyrene parts or prototypes directly from a CAD file, as well as upgrades for two systems that make larger parts, are new from Electro Optical Systems (EOS) in Germany (U.S. office in Novi, Mich.) Its Formiga P 100 model (photo) is a new compact model for direct manufacturing of parts and functional prototypes. It has a build envelope of 200 x 250 x 330 mm and can produce complex shapes with wall thicknesses down to 0.4 mm in a few hours. This is the first EOS laser-sintering system that can pass through a standard doorway. Also new is the Eosint P 390 system, which builds parts with a high-quality surface and without supports. It has a build envelope of 340 x 340 x 620 mm and Intelliscan 20, the latest digital scanner, which is said to increase system productivity. EOS also has improved on its Eosint P 700 platform, which doubles productivity by using two lasers simultaneously. The new Eosint p 730, with a build envelope of 700 x 380 x 580 mm, is up to 40% more productive than the P 700. EOS has new plastic powders for laser sintering made of nylon 12 fi lled with carbon fiber or 40% aluminum powder. EOS also has new metal powders, such as MS1 maraging steel, which can be used to make tool inserts that are fully dense and need no post-processing.
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