Thermal multi-sensor instrumentation for the enhancement of a directed energy deposition process

Thermal multi-sensor instrumentation for the enhancement of a directed energy deposition process


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Abstract. Directed energy deposition (DED) is an additive manufacturing process with growing industrial interests. Nonetheless, its industrialization will not be possible until it is fully mature. Such maturity lies in the upstream research to optimize and control it. In DED, process parameters, physical quantities and parts properties are interrelated which makes it a complex process. To have a better understanding of these relations, the experimental approach of instrumentation has been chosen. Multi-sensor method has been implemented for its more extensive possibilities in comparison to single-sensor methods. A bichromatic pyrometer was coupled to an IR camera to measure the temperature distributions in real time. Post-process characterizations of the aspects and geometries of the parts were related to the sensors’ measurements and consequently, to the process parameters. Twelves sets of parameters were tested to conclude that the energy input impacts the size of the melting pool and the temperature distribution. High energies lead to defects such as edge defects and layer thickening but can mitigate surface roughness. Both the pyrometer and camera proved to have a relevance in this study for the enhancement of the DED process.

Additive Manufacturing, Powder Laser Metal Deposition, Instrumentation

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: DE PEINDRAY D’AMBELLE Lilou, CHERRIER Olivier, MOUSSAOUI Kamel, MABRU Catherine, Thermal multi-sensor instrumentation for the enhancement of a directed energy deposition process, Materials Research Proceedings, Vol. 41, pp 70-79, 2024


The article was published as article 8 of the book Material Forming

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[1] P. Gradl, D.C. Tinker, A. Park, O.R. Mireles, M. Garcia, R. Wilkerson, C. Mckinney, Robust Metal Additive Manufacturing Process Selection and Development for Aerospace Components, J. of Materi Eng and Perform 31 (2022) 6013–6044.
[2] B. Blakey-Milner, P. Gradl, G. Snedden, M. Brooks, J. Pitot, E. Lopez, M. Leary, F. Berto, A. du Plessis, Metal additive manufacturing in aerospace: A review, Materials & Design 209 (2021) 110008.
[3] D. Herzog, V. Seyda, E. Wycisk, C. Emmelmann, Additive manufacturing of metals, Acta Materialia 117 (2016) 371–392.
[4] L. Zhu, P. Xue, Q. Lan, G. Meng, Y. Ren, Z. Yang, P. Xu, Z. Liu, Recent research and development status of laser cladding: A review, Optics & Laser Technology 138 (2021) 106915.
[5] S. Guo, C. Zamiela, L. Bian, Knowledge-transfer-enabled porosity prediction for new part geometry in laser metal deposition, Journal of Manufacturing Processes 103 (2023) 64–77.
[6] M. Liu, A. Kumar, S. Bukkapatnam, M. Kuttolamadom, A Review of the Anomalies in Directed Energy Deposition (DED) Processes & Potential Solutions – Part Quality & Defects, Procedia Manufacturing 53 (2021) 507–518.
[7] M. Mazzarisi, A. Angelastro, M. Latte, T. Colucci, F. Palano, S.L. Campanelli, Thermal monitoring of laser metal deposition strategies using infrared thermography, Journal of Manufacturing Processes 85 (2023) 594–611.
[8] A.J. Myers, G. Quirarte, J.L. Beuth, J.A. Malen, Two-color thermal imaging of the melt pool in powder-blown laser-directed energy deposition, Additive Manufacturing (2023) 103855.
[9] S.J. Altenburg, A. Straße, A. Gumenyuk, C. Maierhofer, In-situ monitoring of a laser metal deposition (LMD) process: comparison of MWIR, SWIR and high-speed NIR thermography, Quantitative InfraRed Thermography Journal 19 (2022) 97–114.
[10] C. Hagenlocher, P. O’Toole, W. Xu, M. Brandt, M. Easton, A. Molotnikov, The Effect of Heat Accumulation on the Local Grain Structure in Laser-Directed Energy Deposition of Aluminium, Metals 12 (2022) 1601.
[11] A. Chabot, M. Rauch, J.-Y. Hascoët, Towards a multi-sensor monitoring methodology for AM metallic processes, Welding in the World 63 (2019) 759–769.
[12] N. Ali, L. Tomesani, A. Ascari, A. Fortunato, Fabrication of Thin Walls with and without Close Loop Control as a Function of Scan Strategy Via Direct Energy Deposition, Lasers Manuf. Mater. Process. 9 (2022) 81–101.
[13] B.T. Gibson, Y.K. Bandari, B.S. Richardson, A.C. Roschli, B.K. Post, M.C. Borish, A. Thornton, W.C. Henry, M. Lamsey, L.J. Love, Melt Pool Monitoring for Control and Data Analytics in Large-Scale Metal Additive Manufacturing, in: University of Texas at Austin, 2019.
[14] M.F. Schneider, Laser Cladding with Powder: Effect of Some Machining Parameters on Clad Properties, 1998.
[15] B. Carcel, J. Sampedro, I. Perez, E. Fernandez, J.A. Ramos, Improved laser metal deposition (LMD) of nickel base superalloys by pyrometry process control, in: XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, SPIE, 2010: pp. 643–651.
[16] D. Hu, R. Kovacevic, Sensing, modeling and control for laser-based additive manufacturing, International Journal of Machine Tools and Manufacture 43 (2003) 51–60.
[17] M. Akbari, R. Kovacevic, Closed loop control of melt pool width in robotized laser powder–directed energy deposition process, Int J Adv Manuf Technol 104 (2019) 2887–2898.
[18] Y. Ding, J. Warton, R. Kovacevic, Development of sensing and control system for robotized laser-based direct metal addition system, Additive Manufacturing 10 (2016) 24–35.
[19] A. Zapata, C. Bernauer, M. Hell, M.F. Zaeh, Studies on the direction-independent temperature measurement of a coaxial laser metal deposition process with wire, (n.d.).
[20] I. Smurov, M. Doubenskaia, A. Zaitsev, Comprehensive analysis of laser cladding by means of optical diagnostics and numerical simulation, Surface and Coatings Technology 220 (2013) 112–121.
[21] B. Wu, D. Ding, Z. Pan, D. Cuiuri, H. Li, J. Han, Z. Fei, Effects of heat accumulation on the arc characteristics and metal transfer behavior in Wire Arc Additive Manufacturing of Ti6Al4V, Journal of Materials Processing Technology 250 (2017) 304–312.
[22] D. Yang, G. Wang, G. Zhang, Thermal analysis for single-pass multi-layer GMAW based additive manufacturing using infrared thermography, Journal of Materials Processing Technology 244 (2017) 215–224.