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3-D Printing by Laser-Assisted Direct Energy Deposition (LDED): The Present Status

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Abstract

Laser-assisted direct energy deposition (LDED) is an additive manufacturing technology which involves melting/fusion of materials in the form of powder or wire using laser as a focused heat source and its deposition in a layer-by-layer fashion on a dummy substrate to build the product in its final shape by one-step processing. LDED is a very important technology for obtaining component with extreme precision and with minimum loss of material and a flexible one to build component of any kind including metal/alloys, metal matrix composites, and intermetallics. LDED may be categorized in to laser engineered net shaping, laser metal deposition, direct metal deposition, and direct metal printing. In the present contribution, a detailed discussion on the principle of LDED, role of process parameters in influencing the properties, and the present status on the application of LDED for the fabrication of metallic, metal matrix composite, and intermetallics will be discussed in details. Finally, the future scope of research on LDED will be presented.

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Correspondence to Jyotsna Dutta Majumdar.

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Majumdar, J.D., Madapana, . & Manna, I. 3-D Printing by Laser-Assisted Direct Energy Deposition (LDED): The Present Status. Trans Indian Natl. Acad. Eng. 6, 933–953 (2021). https://doi.org/10.1007/s41403-021-00252-9

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  • DOI: https://doi.org/10.1007/s41403-021-00252-9

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