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Compensation for Geometrical Deviations in Additive Manufacturing

Chair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, Germany
Institute of Micro Technology and Medical Device Technology, Technical University of Munich, Boltzmannstr. 15, 85748 Garching, Germany
Author to whom correspondence should be addressed.
Technologies 2019, 7(4), 83;
Received: 28 October 2019 / Revised: 26 November 2019 / Accepted: 28 November 2019 / Published: 2 December 2019
(This article belongs to the Special Issue Reviews and Advances in Materials Processing)
The design of additive manufacturing processes, especially for batch production in industrial practice, is of high importance for the propagation of new additive manufacturing technology. Manual redesign procedures of the additive manufactured parts based on discrete measurement data or numerical meshes are error prone and hardly automatable. To achieve the required final accuracy of the parts, often, various iterations are necessary. To address these issues, a data-driven geometrical compensation approach is proposed that adapts concepts from forming technology. The measurement information of a first calibration cycle of manufactured parts is the basis of the approach. Through non-rigid transformations of the part geometry, a new shape for the subsequent additive manufacturing process was derived in a systematic way. Based on a purely geometrical approach, the systematic portion of part deviations can be compensated. The proposed concept is presented first and was applied to a sample fin-shaped part. The deviation data of three manufacturing cycles was utilised for validation and verification. View Full-Text
Keywords: additive manufacturing; 3D-printing; compensation; accuracy; precision additive manufacturing; 3D-printing; compensation; accuracy; precision
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MDPI and ACS Style

Hartmann, C.; Lechner, P.; Himmel, B.; Krieger, Y.; Lueth, T.C.; Volk, W. Compensation for Geometrical Deviations in Additive Manufacturing. Technologies 2019, 7, 83.

AMA Style

Hartmann C, Lechner P, Himmel B, Krieger Y, Lueth TC, Volk W. Compensation for Geometrical Deviations in Additive Manufacturing. Technologies. 2019; 7(4):83.

Chicago/Turabian Style

Hartmann, Christoph, Philipp Lechner, Benjamin Himmel, Yannick Krieger, Tim C. Lueth, and Wolfram Volk. 2019. "Compensation for Geometrical Deviations in Additive Manufacturing" Technologies 7, no. 4: 83.

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