Authors:
Lennart Hecker (GKN Powder Metallurgy Engineering GmbH, Germany),
Simon Höges (GKN Powder Metallurgy Engineering GmbH, Germany),
Patrick Koehnen (GKN Powder Metallurgy Engineering GmbH, Germany)
Abstract:
Beside using Binder Jetting in industrial or automotive applications, it is also an appropriate process for the series production of wearables, jewelry or medical products. Products with constant skin contact have high requirements regarding corrosion resistance and furthermore, the material should not cause any health issues. Common stainless steels do not fit into the second requirement due to a high Nickel amount. Sweat and other fluids can cause a Nickel release from the product surface. This released Nickel can cause allergic reactions since a Nickel-sensitivity for a relevant number of people within the population is present. To offer products without any risk of Nickel release, GKN Additive developed a nickel free austenitic stainless steel material for binder jetting. To achieve an austenitic structure, Nitrogen is used as austenite stabilizer. The present paper gives an insight into the printing, sintering, and HIP process of this new material.
DOI:
https://doi.org/10.59499/WP225377331