Research on the processing experiments of laser metal deposition shaping

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Additive manufacturing of metallic components – Process, structure and properties (2018, background): “There is an abundance of literature reporting densities lower than theoretical densities owing to porosity for aluminum alloys [35,148,179,189,270,548,555,640–650], steels [651–657], nickel base alloys [180,368,378,401,494,503,507,509,658,659], stainless steels [33,205,267,312,357,468,469,485,660,66”
Surface Morphology in Selective Laser Melting of Metal Powders (2011, unknown): “Smoothness of the surface formed is a particularly significant characteristic of the additive manufacturing process [24-26].”
An overview of Direct Laser Deposition for additive manufacturing; Part I: Transport phenomena, modeling and diagnostics (2015, unknown): “Extendng from a literature survey of Costa and Vilar [68], some of these LD technologies to arise over the years include: laser cladding 70], laser direct casting [71], direct metal deposition (DMD) [72], aser forming or ‘Lasform’ processing [73], freeform laser consolidaion [74,75], laser-aided dir”
Microstructure and residual stress of laser rapid formed Inconel 718 nickel-base superalloy (2011, background): “Meanwhile, fine microstructure without macro-segregation can be obtained due to the rapid solidification process of the molten pool during laser rapid forming [2].”