Reducing distortion using a displacement-controlled hatching strategy in PBF-LB/M Article Swipe

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Christoph Lee , Niklas Ostermann , Tobias Grimm , Jan T. Sehrt , Vasily Ploshikhin ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.21203/rs.3.rs-7997063/v1

In the process of additive manufacturing, specifically powder bed fusion of metals using a laser beam (PBF-LB/M), dealing with the in-situ displacement of overhang structures is a major challenge. This study utilizes a hatching strategy based on displacement simulation results to significantly reduce such displacements. The residual displacements for specific geometries and materials were determined using the inherent strain method. Subsequently, the hatching vectors were planned orthogonally to the simulated displacement vectors. The findings indicate that aligning the hatching orientation based on simulation results decreased the displacement by up to 70%, in propeller blades made of AlSi10Mg. This approach displays the potential for enhancing the precision and stability of PBF-LB/M processes.

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Structural Engineering

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Displacement (psychology) Distortion (music) Hatching Orientation (vector space) Process (computing) Residual Materials science Control theory (sociology) Stability (learning theory) Structural engineering Work (physics) Fusion Kinematics Plane (geometry) Optics Position (finance) Computer science Tapering Deformation (meteorology) Propeller Realization (probability) Beam (structure)

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Type: article
Landing Page: https://doi.org/10.21203/rs.3.rs-7997063/v1
PDF: https://www.researchsquare.com/article/rs-7997063/latest.pdf
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References: 18
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OpenAlex ID: https://openalex.org/W7105828157

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DOI: https://doi.org/10.21203/rs.3.rs-7997063/v1

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Title: Reducing distortion using a displacement-controlled hatching strategy in PBF-LB/M

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Publication year: 2025

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Publication date: 2025-11-17

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Authors: Christoph Lee, Niklas Ostermann, Tobias Grimm, Jan T. Sehrt, Vasily Ploshikhin

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Landing page: https://doi.org/10.21203/rs.3.rs-7997063/v1

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Concepts: Displacement (psychology), Distortion (music), Hatching, Orientation (vector space), Process (computing), Residual, Materials science, Control theory (sociology), Stability (learning theory), Structural engineering, Work (physics), Fusion, Kinematics, Plane (geometry), Optics, Position (finance), Computer science, Tapering, Deformation (meteorology), Propeller, Realization (probability), Beam (structure)

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