A review of laser engineered net shaping (LENS) - Izadi et al 2020.pdf (3.27 MB)
A review of laser engineered net shaping (LENS) build and process parameters of metallic parts
journal contribution
posted on 2020-07-09, 09:05 authored by Mojtaba Izadi, Aidin Farzaneh, Mazher MohammedMazher Mohammed, Ian Gibson, Bernard RolfePurpose: This paper aims to present a comprehensive review of the laser engineered net shaping (LENS) process in an attempt to provide the reader with a deep understanding of the controllable and fixed build parameters of metallic parts. The authors discuss the effect and interplay between process parameters, including: laser power, scan speed and powder feed rate. Further, the authors show the interplay between process parameters is pivotal in achieving the desired microstructure, macrostructure, geometrical accuracy and mechanical properties.
Design/methodology/approach: In this manuscript, the authors review current research examining the process inputs and their influences on the final product when manufacturing with the LENS process. The authors also discuss how these parameters relate to important build aspects such as melt-pool dimensions, the volume of porosity and geometry accuracy.
Findings: The authors conclude that studies have greatly enriched the understanding of the LENS build process, however, much studies remains to be done. Importantly, the authors reveal that to date there are a number of detailed theoretical models that predict the end properties of deposition, however, much more study is necessary to allow for reasonable prediction of the build process for standard industrial parts, based on the synchronistic behavior of the input parameters.
Originality/value: This paper intends to raise questions about the possible research areas that could potentially promote the effectiveness of this LENS technology.
History
School
- Design
Published in
Rapid Prototyping JournalVolume
26Issue
6Pages
1059 - 1078Publisher
Emerald Publishing LimitedVersion
- VoR (Version of Record)
Rights holder
© Mojtaba Izadi, Aidin Farzaneh, Mazher Mohammed, Ian Gibson and Bernard Rolfe.Publisher statement
This article is published under the Creative Commons Attribution (CC BY 4.0) license. Anyone may reproduce, distribute, translate and create derivative works of this article (for both commercial and non-commercial purposes), subject to full attribution to the original publication and authors. The full terms of this license may be seen at http://creativecommons.org/licences/by/4.0/legalcodeAcceptance date
2020-02-13Publication date
2020-04-14Copyright date
2020ISSN
1355-2546Publisher version
Language
- en
