Authors:
Alexandru Sorea (Sintex A|S, Denmark),
Peter Valler (Sintex A|S, Denmark)
Abstract:
Metal powder extrusion was developed to manufacture steel components longer than 300 mm with a complex internal geometry and a wall thickness below 0.4 mm. These unique structures can be combined with customized alloys to facilitate innovation in many different industries. Extrusion of metal powders requires a compound that is flowable and has a high wet strength at room temperature. The right compound mixture and properties were obtained through the systematic method, Design of experiments. Sintering of extrudates introduced many new challenges, some of these were overcome with the help of sintering simulations and thermodynamics modelling of phase changes during sintering. This paper will present how to extrude and sinter such long, thin walled and complex shaped components through innovative and novel solutions and discuss the possible geometries, alloys and applications within heat exchanging, crash absorption and filtering.
DOI:
https://doi.org/10.59499/WP225370520