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SLM (Near)-Net-Shape Part Design Optimization Based on Numerical Prediction of Process Induced Distortions

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TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

Distortions are critical in metal additive manufacturing, since they increase manufacturing costs, times and generate wastes and scraps due to dimensional inaccuracies in newly developed parts. Currently, corrective measures are often not taken until production step and they are mainly based on trial an error approach. Alternatively, Design Against Distortion paradigm is focused on the development of numerical modelling strategies which can anticipate distortions even from the design stage. This work is focused on the development of a rapid distortion prediction numerical methodology applicable to selective laser melting (SLM) process, taking into account the influence of different process variables, like scanning parameters and scanning strategy. This methodology is applicable to predict distortion behaviour of a real component manufactured by SLM, in order to determine the best supporting strategy and build up orientation. Therefore, current developments entail an innovative way of designing and manufacturing SLM manufactured parts which are more robust against distortions.

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References

  1. B. Baufeld, O. Van der Biest, R. Gault, Additive manufacturing of Tiā€“6Alā€“4Ā V components by shaped metal deposition: microstructure and mechanical properties. Mater. Des. 31(Supplement 1), S106ā€“S111 (2010)

    ArticleĀ  Google ScholarĀ 

  2. N. Keller, V. Ploshikhin, New method for fast predictions of residual stress and distortion of AM parts, Solid Freeform Fabrication Symposium, 2014, Austin, Texas, Conference paper, pp. 1229ā€“1237

    Google ScholarĀ 

  3. G. Branner, Modellierung transienter Effekte in der Struktursimulation von Schichtbauverfahren (2010)

    Google ScholarĀ 

  4. G. Branner, J. Schilp, T.A. Krol, Modelle zur thermomechanischen Simulation metallverarbeitender Strahlschmelzprozesse (2009)

    Google ScholarĀ 

  5. T.A. Krol, S. WesthƤuser, M.F. ZƤh, J. Schilp, G. Groth, Development of a simulation-based process chainā€”strategy for different levels of detail for the preprocessing definitions, vol. 21 (2011), pp. 135ā€“140

    Google ScholarĀ 

  6. C. Seidel, T.A. Krol, J. Schilp, M.F. Zaeh, C. Groth, Ansaetze zur rechenzeiteffizienten Struktursimulation additiv gefertigter, filigraner Bauteile. CADFEM GmbH (ed.): Ansys Conference & 30. CADFEM Usersā€™ Meeting. (Kassel; 2012)

    Google ScholarĀ 

  7. N. Keller, F. Neugebauer, H. Xu, V. Ploshikhin, Thermo-mechanical simulation of additive layer manufacturing of titanium aerospace structures, no. figureĀ 1 (2013)

    Google ScholarĀ 

  8. C. Seidel, M.F. Zaeh, J. Weirather , T.A. Krol, J. Schilp, D. Schmid, Prozessnahe Modellierung des Materialverhaltens beim Laserstrahlschmelzen als Grundlage fĆ¼r die Ergebnisgenauigkeit hinsichtlich der BauteilmaƟhaltigkeit und des Eigenspannungszustandes. In: CADFEM GmbH (ed.): ANSYS Conference & 31th CADFEM Usersā€™ Meeting. (Mannheim; 2013)

    Google ScholarĀ 

  9. C. Seidel, M.F. Zaeh, J. Weirather, M. Wunderer, T.A. Krol, J. Schilp, C. Groth, Simulation of the laser beam melting processā€”an approach for an efficient geometry modelling of complex lightweight parts, no. c

    Google ScholarĀ 

  10. F. Neugebauer, N. Keller, V. Ploshikhin, F. Feuerhahn, H. Kƶhler, Multi scale FEM simulation for distortion calculation in additive manufacturing of hardening stainless steel, in Proceedings of Fraunhofer Direct Digital Manufacturing Conference (2014), pp. 13ā€“23

    Google ScholarĀ 

  11. A. Bachorski, M. Painter, A. Smailes, M. Wahab, Finite-element prediction of distortion during gas metal arc welding using the shrinkage volume approach. J. Mater. Process. Technol. 92ā€“93, 405ā€“409 (1999)

    ArticleĀ  Google ScholarĀ 

  12. A. LundbƤck, Modelling and simulation of welding and metal deposition. Aerosp. Eng.

    Google ScholarĀ 

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Correspondence to Maria San Sebastian .

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Ā© 2017 The Minerals, Metals & Materials Society

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Sebastian, M.S., Setien, I., Mancisidor, A.M., Echeverria, A. (2017). SLM (Near)-Net-Shape Part Design Optimization Based on Numerical Prediction of Process Induced Distortions. In: TMS, T. (eds) TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51493-2_12

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