Impact of Layer Time and Hatch Conformity on the Behavior of Thin-Walled Components in Powder Bed Fusion of Polymers

Jaksch A, Cholewa S, Drummer D (2024)

Publication Type: Conference contribution

Publication year: 2024

Journal

AIP Conference Proceedings AIP Publishing

Publisher: American Institute of Physics

Book Volume: 3158

Conference Proceedings Title: AIP Conference Proceedings

Event location: St. Gallen CH

DOI: 10.1063/5.0204486

Abstract

The effects of process variables like hatch conformity and layer time are often overlooked and, as a result, are not fully understood. This is particularly true for thin-walled components. This work specifically addresses the impact on thin structures, which are critical for maximizing the potential of the laser-based powder bed fusion process. Therefore, tensile specimens of various thicknesses and orientations were manufactured, and the hatch conformity and layer time were altered. For a more profound process understanding, infrared thermography is used to analyze the developing exposure temperatures. While the hatch count indicated an impact on the resulting exposure temperatures, the effect on the resulting part properties is minimal. The layer time shows a notable influence on the part geometry and density. Young’s modulus can be described as constant when considering the mechanical properties, independent of the layer time and hatch conformity. The elongation at break does not influence the hatch conformity but the layer time. Overall, the most significant changes occurred due to variations in the part thickness and must be considered in part optimization.

Authors with CRIS profile

Andreas Jaksch Sonderforschungsbereich 814/3 Additive Fertigung Simon Cholewa Sonderforschungsbereich 814/3 Additive Fertigung Dietmar Drummer Lehrstuhl für Kunststofftechnik (LKT)

How to cite

APA:

Jaksch, A., Cholewa, S., & Drummer, D. (2024). Impact of Layer Time and Hatch Conformity on the Behavior of Thin-Walled Components in Powder Bed Fusion of Polymers. In Edith Perret (Eds.), AIP Conference Proceedings. St. Gallen, CH: American Institute of Physics.

MLA:

Jaksch, Andreas, Simon Cholewa, and Dietmar Drummer. "Impact of Layer Time and Hatch Conformity on the Behavior of Thin-Walled Components in Powder Bed Fusion of Polymers." Proceedings of the 38th International Conference of the Polymer Processing Society, PPS 2023, St. Gallen Ed. Edith Perret, American Institute of Physics, 2024.

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