EOS Presents Systems for Rapid Manufacturing

EOS has announced that it will be highlighting its portfolio of additive manufacturing systems at this year's Euromold, in hall 11, booth C08. With the EOSINT M 280, the company launches an improved version of its additive manufacturing systems for metals. Peter Klink, executive vice-president global sales at EOS, said: 'The EOSINT M 280 adopts all features of the EOSINT M 270 system and is suitable for a wide range of demanding applications including tooling and series production.

'Customers are using the EOSINT M 270 for series production in a variety of fields, including medical products. 'Many other users are actively qualifying the technology for their production,' he added. The EOSINT M 280 is available with either the same 200W fibre laser, which EOS used on the EOSINT M 270, or a 400W fibre laser option. This higher-power laser can melt more metal powder per second, thus achieving shorter build times and higher system productivity. For example, an injection moulding core will be displayed at Euromold that was built in less than half the time compared to the EOSINT M 270.

Especially for heavy use in a manufacturing environment, the newest system enables reduced costs per part, opening up new viable application areas. Another improvement of the EOSINT M 280 compared to its predecessor is the increase of the maximum building height up to 325mm. This enables taller parts to be placed in the process chamber, again expanding the application areas. This is particularly useful for hybrid part building, where complex parts are produced by building additional material on top of a prefabricated part.

Based on extensive process investigations and supported by fluid dynamics simulations, EOS has optimised the gas management system of the EOSINT M 280. A high-velocity laminar flow of protective gas across the entire build area, combined with the high-capacity recirculating filter system, is said to ensure more uniform process conditions.

Stable melting behaviour is ensured even over long periods of time and with higher laser power. This is said to result in improved reproducibility of the part properties. The system therefore offers a platform for further material and process developments. It also supports processes both under nitrogen gas atmosphere, created by compressed air via an integrated nitrogen generator, as well as under argon gas. Further improvements in the gas management system enable a reduction of the gas consumption and a prolonged filter lifetime.

The EOSINT M 280 builds on the Part Property Management concept, which was introduced at last year's Euromold by EOS. It enables standardisation and comparability of building processes, based on the Part Property Profiles (PPP). By ensuring a consistent quality assurance along the entire process chain, EOS said it enables machine users to reliably produce parts based on defined material and part properties. The EOSINT M 280 supports all the materials of its predecessor, with the same or with optimised parameter sets. Currently, EOS offers 10 series materials, including the most recent EOS nickel alloy IN625.

For the 400W option, faster parameter sets with corresponding Part Property Profiles will be introduced. Customers can either use the pre-qualified EOS parameter sets or develop and modify their own. As with previous models, the system configuration can be adapted to different customer needs through a variety of options and accessories. Laser Power Monitoring (LPM) checks laser power during the building process and reports the compliance with the specifications or warns of any deviations. The machine status can be monitored with the base module of the Eostate 1.2 software.

Additional Eostate modules, Quality Assurance, Controlling and MPM (Machine Park Management), are also available. These allow a statistical overview of the built jobs and parts over freely selectable periods of time. Integrated Process Chain Management (IPCM) modules offer optimised powder and part handling, thus ensuring increased productivity, quality and usability. These can be added at any time. EOS also plans to introduce an optional glove box to enable the parts to be freed from powder inside a closed process chamber environment.

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