Three-Dimensional Numerical Simulation of Repairing Process by Laser Direct Energy Deposition

Arai, Masayuki; Muramatsu, Toshikazu; Ito, Kiyohiro; Izumi, Taisei; Yokota, Hiroki

doi:10.1007/s11666-022-01499-6

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…• Possibility to enhance product lifetime by printing spare parts (Durão et al, 2016;Ford and Despeisse, 2016) or by specific repair of critical sections via DED (Saboori et al, 2019;Jamieson et al, 2022;Arai et al, 2023), • Recycling of waste through waste-to-filament processes (Feeley et al, 2014;Ponis et al, 2021;Romani et al, 2021), and • More efficient use of resources through complex structures that need less material (Gebler et al, 2014;Sauerwein et al, 2019;Sun et al, 2021).…”

Section: Sdg : Sustainable Cities and Communitiesmentioning

confidence: 99%

Putting 3D printing to good use—Additive Manufacturing and the Sustainable Development Goals

2023

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Additive Manufacturing (AM), often referred to as 3D printing, is expected to have a high impact on the manufacturing industry as well as on society. The inherent characteristics of AM make it possible to help solve global challenges, which can be explored in reference to the 17 Sustainable Development Goals (SDGs) of the United Nations. This is the first paper that examines the connection of AM and the 17 SDGs through a literature review. In this work, it is outlined which SDGs have a high, moderate or low potential to be fostered by AM. The SDGs are introduced and corresponding studies relevant to the respective SDG are presented. It is found that six out of 17 SDGs have high potential to be promoted by AM. These are SDG 1 (No poverty), SDG 3 (Good Health and Wellbeing), SDG 4 (Quality Education), SDG 9 (Industry, Innovation, and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG 14 (Life below Water). Furthermore, two SDGs have been identified that have moderate potential to be cultivated by AM. These are SDG 7 (Affordable and Clean Energy) and SDG 10 (Reduced Inequalities).

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Section: Sdg : Sustainable Cities and Communitiesmentioning

confidence: 99%

Putting 3D printing to good use—Additive Manufacturing and the Sustainable Development Goals

2023

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Thermo-Structural Coupled Finite Element Analysis of Repair Process for Steam Turbine Blade Using Laser-Directed Energy Deposition Method

Arai,

Fujita,

Meng

et al. 2024

J Therm Spray Tech

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This study presents a numerical additive manufacturing simulation aimed at simulating the shape recovery process of a steam turbine blade damaged by corrosion, using laser-directed energy deposition (LDED). The simulation integrates the finite element (FE) method with heat conduction and thermo-elastoplastic constitutive equations, incorporating phase transformation. The additive manufacturing process by LDED was modeled using the death-birth algorithm, wherein a deposition layer is defined as a virtual element. Its stiffness and thermal properties activated when the laser irradiation regions overlapped. In this study, the shape of the virtual element was determined based on the cross-sectional shape of the deposition layer manufactured under various laser conditions. To validate the numerical simulation results, additive manufacturing was conducted for one pass deposition in the width direction at the center of a cantilever-supported plate made of SUS304 steel, and the changes in displacement at the free edges with respect to the process time were compared. The obtained FE results are in good agreement with the experimental results. Finally, an FE simulation was performed for the shape recovery of a steam turbine blade thinned due to corrosion damage. The results revealed that the residual stress component becomes more compressive as the laser output decreases and scanning speed increases, which is advantageous for improving the fatigue strength of steam turbine blades.

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A novel approach to control thermal induced buckling during laser welding of battery housing through a unilateral N-2-1 fixturing principle

Mohan,

Franciosa,

Dai

et al. 2024

Journal of Advanced Joining Processes

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Three-Dimensional Numerical Simulation of Repairing Process by Laser Direct Energy Deposition

Cited by 3 publications

References 25 publications

Putting 3D printing to good use—Additive Manufacturing and the Sustainable Development Goals

Putting 3D printing to good use—Additive Manufacturing and the Sustainable Development Goals

Thermo-Structural Coupled Finite Element Analysis of Repair Process for Steam Turbine Blade Using Laser-Directed Energy Deposition Method

A novel approach to control thermal induced buckling during laser welding of battery housing through a unilateral N-2-1 fixturing principle

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