Materials

Here we also would like to introduce two new metal materials to you:
EOS NickelAlloy IN718: nickel-based heat and corrosion resistant superalloy (corresponding to Inconel 718), characterized by having good tensile, fatigue, creep and rupture strength at temperatures up to 700°C. EOS Aluminium AlSi10Mg: the first aluminium alloy qualified for EOSINT M 270 systems. Due to its light weight and excellent thermal conductivity this typical casting alloy opens up new application areas, e.g. in the automotive industry.

EOS NickelAlloy IN718
EOS NickelAlloy IN718 is a precipitation-hardening nickel-chromium alloy which is heat resistant and therefore ideal for many high temperature applications. Thus, the main target group for this material is the aerospace industry. Moreover the material possesses excellent cryogenic properties. EOS has already completed an extended development and test phase including several pilot customers. Moreover, EOS has developed process parameters which enable good part-building and ensure that the relevant industrial standards for this material type can be reliably fulfilled. These include for example heat treatment in accordance with AMS 5662 and AMS 5664 standards as well as tensile and stress rupture properties at elevated temperature (650°C, 1200°F).

EOS Aluminium AlSi10Mg
Particularly interesting is that the usage of EOS Aluminium AlSi10Mg in the process chain contributes to savings in time and cost because no further treatment of the laser-sintered parts is necessary. Due to the rapid melting and resolidification caused by the laser exposure, they match or even exceed the conventional heat-treated parts already in the as-built condition. By laser-sintering, hollow parts or various mesh-like fill structures can be implemented which in conjunction with EOS Aluminium AlSi10Mg lead to extremely high stiffness-to-weight ratios. EOS has done thorough process development and testing as preparation for the market launch.