Observations on Laser Additive Manufacturing (LAM) in Terms of Directed Energy Deposition (DED) with Metal Powder Feedstock

Author(s)

Barragan, G. A. ^{[1, 2]} ; Rojas, D. ^[1] ; Grass, J. S. ^[1] ; Coelho, R. T. ^[1]

Affiliation

^[1] Univ Sao Paulo, Engn Sch Sao Carlos, Lab Adv Proc & Sustainabil LAPRAS, 400 Trabalhador Sao Carlense Ave, Sao Carlos - Brazil

^[2] Univ Pontificia Bolivariana, Fac Ingn Aeronaut, Grp Invest Ingn Aerosp, Circular 1 70-01, Medellin - Colombia

• Document type: Journal article
• Source: LASERS IN ENGINEERING; v. 50, n. 1-3, p. 117-141, 2021.
• Web of Science Citations: 0

Abstract

Directed energy deposition (DED) is one of the seven additive manufacturing (AM) process categories. Its operation principle requires a focused thermal energy source that fuses material during a layer-by-layer deposition for the fabrication of functional parts from computer-aided design (CAD). Through intensive research over the past decades, significant process progress has been achieved. Its application areas cover the production and repair of automotive, aerospace, energy, and medical applications. Presented herein are observations on a wide-ranging review of the main constitutive elements of laser additive manufacturing (LAM) and laser directed energy deposition (LDED) system and its relationship with the final part properties with a concentration on the deposition of powder metal. A systematic review has been performed for paper development based on scientific databases, covering a vast range of processes, technologies, terminology, and applications associated with the category. (AU)

• FAPESP's process: 16/11309-0 - The study, development and application of a hybrid process: Additive Manufacturing (AM) plus High Speed Machining/Grinding (HSM/G)
• Grantee: Reginaldo Teixeira Coelho
• Support Opportunities: Research Projects - Thematic Grants