Authors:
Alexander Holzer (TU Wien, Austria)
Simon Pfeifenberger (TU Wien, Austria)
Atul Anand (TU Wien, Austria)
Christian Gierl-Mayer (TU Wien, Austria)
Abstract:
Sinter-based additive processes, such as lithography-based metal manufacturing, enable properties and design possibilities that cannot be manufactured any other way. The final properties and geometrical precision of indirect additive manufacturing techniques are strongly affected by the quality of the debinding procedure. Therefore, several aspects – temperature, atmosphere and pre-treatments like heat treatment or solvent debinding – play an important role. In this work, the main influences and consequences of the debinding procedure are shown. Results show that the key factor is the thickness of the sample. Therefore, the temperature and dwelling time is adjusted to allow the diffusion processes. In general, synthetic air allows better removal of carbon. The process window for the optimum treatment is narrowed by the stability before sintering. Those consequent possible errors, like deformation, fragility and too high carbon content can be avoided and allow a higher performance of the component in the end.
DOI:
https://doi.org/10.59499/EP256763871
