The influence of building direction and conventional heat treatment on the microstructure, physical, and mechanical characteristics of direct metal laser sintered Inconel 718 alloy

Maurya, Ajay Kumar; Kumar, Amit

doi:10.1080/2374068x.2022.2081296

Cited by 1 publication

(1 citation statement)

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“…They investigated the microstructural characteristics of the built part. It was revealed that surface roughness relies on build orientation and scan strategy, but density not depend on scan strategy 15,16 . Hashmi et al reported the formation of surface defects during additive manufactured metallic parts at lower laser power, but with higher laser power the surface defect minimizes 17 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Scanning Strategy on Surface Roughness of Directed Energy Deposited Inconel 718 Alloy

Maurya,

Kumar,

Saini

et al. 2023

jmmf

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The additive manufacturing method based on powder feed type laser Directed Energy Deposition (DED) is projected to be able to create objects with intricate structures. The intricate thermal history that occurs during DED causes variations in the top surface roughness, which is an important quality index for DED and has a significant impact on the lifespan of the samples. Surface quality is always desirable, mostly in the case of dynamic loading applications. This article presents a methodical investigation into the top surface roughness of the Inconel 718 alloy during various scanning strategies in the DED. This alloy is utilized extensively in the aerospace, automotive, and military industries. Multilayer cuboid samples are fabricated using four scanning strategies. Using different scan strategy, no significant changes in pore size and amount of porosity was observed, but significant changes were observed for the surface quality of printed Inconel alloy.

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Section: Introductionmentioning

confidence: 99%