Vertical laser metal wire deposition of Al-Si alloys

Silva, Adrien Da; Wang, Sicong; Volpp, Jöerg; Kaplan, Alexander

doi:10.1016/j.procir.2020.09.078

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…The power decay strategy i.e., gradually decreasing power after each layer (Figure 31b), helped avoid defect formation by maintaining a stable thermal load [57]. This result was confirmed by Abioye et al and Silva et al, who observed flattened layers with constant laser power due to excessive heating, which is detrimental to process stability [64,112].…”

Section: Building Strategysupporting

confidence: 56%

“…Laser power and TS have been shown to individually influence thermal indicators such as thermal gradients, solidification rate, and the size of the heat-affected zone (HAZ). Therefore, the incorrect selection of these parameters can result in irregularities in surface quality, ultimately impacting the dimensional accuracy of the deposited part [63,64]. In Equations ( 1)-( 4), P is the laser power (W), ρ is the wire material density (g/ mm 3 , D Beam and A Beam are the diameter and cross-sectional area of the beam, respectively, and A wire is the area of the utilized wire.…”

Section: Energy Characteristics 21 Input Energymentioning

confidence: 99%

“…Process. 2024, 8, x FOR PEER REVIEW 28 of 54 constant laser power due to excessive heating, which is detrimental to process stability [64,112]. Wang et al investigated two types of discontinuous building strategies by applying both power decay and interlayer cooling (Figure 31c) during the multilayer deposition of Al alloy [61].…”

Section: Building Strategymentioning

confidence: 99%

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A Review on Wire-Laser Directed Energy Deposition: Parameter Control, Process Stability, and Future Research Paths

Ghanadi,

Pasebani

2024

JMMP

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Wire-laser directed energy deposition has emerged as a transformative technology in metal additive manufacturing, offering high material deposition efficiency and promoting a cleaner process environment compared to powder processes. This technique has gained attention across diverse industries due to its ability to expedite production and facilitate the repair or replication of valuable components. This work reviews the state-of-the-art in wire-laser directed energy deposition to gain a clear understanding of key process variables and identify challenges affecting process stability. Furthermore, this paper explores modeling and monitoring methods utilized in the literature to enhance the final quality of fabricated parts, thereby minimizing the need for repeated experiments, and reducing material waste. By reviewing existing literature, this paper contributes to advancing the current understanding of wire-laser directed energy deposition technology. It highlights the gaps in the literature while underscoring research needs in wire-laser directed energy deposition.

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Section: Building Strategysupporting

confidence: 56%

Section: Energy Characteristics 21 Input Energymentioning

confidence: 99%

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A Review on Wire-Laser Directed Energy Deposition: Parameter Control, Process Stability, and Future Research Paths

Ghanadi,

Pasebani

2024

JMMP

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“…Studies regarding process development for the Laser Metal Deposition (LMD) with lateral wire feeding can be found in the literature. The processability of different steel [18][19][20][21] and aluminum alloys [22][23][24] was demonstrated through crosssectional analyses that showed defect-free beads. Within the scope of parameter studies, the influence of different process parameters on the geometry of the bead was evaluated.…”

Section: State Of the Art 121 Process Development For Lmd With Latera...mentioning

confidence: 99%

Investigation on the Cause-Effect Relationships between the Process Parameters and the Resulting Geometric Properties for Wire-Based Coaxial Laser Metal Deposition

Zapata

Bernauer

Stadter

et al. 2022

Metals

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Coaxial Laser Metal Deposition with wire (LMD-w) is a valuable complement to the already established Additive Manufacturing processes in production because it allows a direction-independent process with high deposition rates and high deposition accuracy. However, there is a lack of knowledge regarding the adjustment of the process parameters during process development to build defect-free parts. Therefore, in this work, a process development for coaxial LMD-w was conducted using an aluminum wire AlMg4,5MnZr and a stainless steel wire AISI 316L. At first, the boundaries for parameter combinations that led to a defect-free process were identified. The proportion between the process parameters energy per unit length and speed ratio proved crucial for a defect-free process. Then, the influence of the process parameters on the height and width of single beads for both materials was analyzed using a regression analysis. It was shown that linear models are suitable for describing the correlation between the process parameters and the dimensions of the beads. Lastly, a material-independent formula is presented to calculate the height increment per layer needed for an additive process. For future studies, the results of this work will be an aid for process development with different materials.

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Wire Oscillating Laser Additive Manufacturing of 2319 Aluminum Alloy: Optimization of Process Parameters, Microstructure, and Mechanical Properties

Cui

Sun

et al. 2022

Chinese Journal of Mechanical Engineering: Additive Manufacturi

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Vertical laser metal wire deposition of Al-Si alloys

Cited by 10 publications

References 6 publications

A Review on Wire-Laser Directed Energy Deposition: Parameter Control, Process Stability, and Future Research Paths

A Review on Wire-Laser Directed Energy Deposition: Parameter Control, Process Stability, and Future Research Paths

Investigation on the Cause-Effect Relationships between the Process Parameters and the Resulting Geometric Properties for Wire-Based Coaxial Laser Metal Deposition

Wire Oscillating Laser Additive Manufacturing of 2319 Aluminum Alloy: Optimization of Process Parameters, Microstructure, and Mechanical Properties

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