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Rapid-Cast Metals - DMLS Parts
The EOSINT 250 M Xtended Direct Metal Laser Sintering system (DMLS) has been successfully used by CRDM Limited over the last four years in generating tooling inserts for injection and blow-mould tooling , wax injection & press tooling.
However, with the arrival of the new ‘EOSTYLE' software and latest generation powder it is now possible to construct very complicated part geometry, including undercuts and enclosed volumes, with minimal support structure interference. This development now makes utilising the DMLS process for the prototyping, and low volume manufacture, of metal components a real alternative to conventional manufacture, and much faster.
Based on layer-build technology, the EOS EOSINT M 250 Xtended system operates using a fine 20 m m metal powder evenly spread over the build area in 20 m m layers. A powerful 250w CO² laser fuses or melts together the individual layers which are evenly delivered by the recoating arm. The end result is a 98% dense component with an excellent surface finish, manufactured to a repeatable accuracy of +/-50 m m.
The two DMLS materials currently offered by CRDM are Nickel-Bronze (Direct Metal 20 - DM20), which is slightly harder wearing than hard tooling aluminium, and Steel (Direct Steel 20 - DS20), which is nearer to P20 steel in hardness.
The DMLS system has already been readily used by Aerospace and F1 companies for wind-tunnel testing due to the materials rigidity and associated weight characteristics. The added strength of the DMLS material, due to the higher density, has leant itself to functional metal prototypes for the medical and automotive sectors, and low volume production components for the nuclear industry.
Ergonomic Models
Working Prototypes
Wind Tunnel
Testing
Exhibition
Models
Design Proving
Accurate to
+/-50 microns
Delivery 3-5
days
How it works
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