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An analytical model of energy distribution in laser direct metal deposition

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An analytical model of energy distribution in laser direct metal deposition. / Pinkerton, A J ; Li, L.
In: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Vol. 218, No. 4, 2004, p. 363-374.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Pinkerton, AJ & Li, L 2004, 'An analytical model of energy distribution in laser direct metal deposition', Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 218, no. 4, pp. 363-374. https://doi.org/10.1243/095440504323055498

APA

Pinkerton, A. J., & Li, L. (2004). An analytical model of energy distribution in laser direct metal deposition. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 218(4), 363-374. https://doi.org/10.1243/095440504323055498

Vancouver

Pinkerton AJ, Li L. An analytical model of energy distribution in laser direct metal deposition. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2004;218(4):363-374. doi: 10.1243/095440504323055498

Author

Pinkerton, A J ; Li, L. / An analytical model of energy distribution in laser direct metal deposition. In: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2004 ; Vol. 218, No. 4. pp. 363-374.

Bibtex

@article{9954d109b6254f29a293d8024b8f3e50,
title = "An analytical model of energy distribution in laser direct metal deposition",
abstract = "The direct metal. deposition (DMD) process is suitable for functional rapid prototyping, rapid tooling and part refurbishment, and can be operated with CO2, Nd:YAG (neodymium-doped yttrium aluminium, garnet) or high-power diode lasers. In this work, a quasi-stationary coaxial DMD system is modelled-in terms of power balances. Novel modelling methods and matching to experimental results are used to derive a series of equations, from which the power distribution, melt pool length and mean melt pool temperature can be derived for different initial laser powers, system parameters and build material properties. The model is applied to a real system and predicts results in agreement with established values. The model highlights laser radiation reflection from the melt pool and conduction to the substrate as the major power distribution routes and reveals the importance of evaporation losses from the melt pool at higher laser powers. Application of the model is able to explain some of the differences in the process found when using alternative types of lasers as the power source.",
keywords = "rapid prototyping, cladding, deposition , laser , modelling, energy distribution , metal ",
author = "Pinkerton, {A J} and L. Li",
year = "2004",
doi = "10.1243/095440504323055498",
language = "English",
volume = "218",
pages = "363--374",
journal = "Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture",
issn = "0954-4054",
publisher = "SAGE Publications Inc.",
number = "4",

}

RIS

TY - JOUR

T1 - An analytical model of energy distribution in laser direct metal deposition

AU - Pinkerton, A J

AU - Li, L.

PY - 2004

Y1 - 2004

N2 - The direct metal. deposition (DMD) process is suitable for functional rapid prototyping, rapid tooling and part refurbishment, and can be operated with CO2, Nd:YAG (neodymium-doped yttrium aluminium, garnet) or high-power diode lasers. In this work, a quasi-stationary coaxial DMD system is modelled-in terms of power balances. Novel modelling methods and matching to experimental results are used to derive a series of equations, from which the power distribution, melt pool length and mean melt pool temperature can be derived for different initial laser powers, system parameters and build material properties. The model is applied to a real system and predicts results in agreement with established values. The model highlights laser radiation reflection from the melt pool and conduction to the substrate as the major power distribution routes and reveals the importance of evaporation losses from the melt pool at higher laser powers. Application of the model is able to explain some of the differences in the process found when using alternative types of lasers as the power source.

AB - The direct metal. deposition (DMD) process is suitable for functional rapid prototyping, rapid tooling and part refurbishment, and can be operated with CO2, Nd:YAG (neodymium-doped yttrium aluminium, garnet) or high-power diode lasers. In this work, a quasi-stationary coaxial DMD system is modelled-in terms of power balances. Novel modelling methods and matching to experimental results are used to derive a series of equations, from which the power distribution, melt pool length and mean melt pool temperature can be derived for different initial laser powers, system parameters and build material properties. The model is applied to a real system and predicts results in agreement with established values. The model highlights laser radiation reflection from the melt pool and conduction to the substrate as the major power distribution routes and reveals the importance of evaporation losses from the melt pool at higher laser powers. Application of the model is able to explain some of the differences in the process found when using alternative types of lasers as the power source.

KW - rapid prototyping

KW - cladding

KW - deposition

KW - laser

KW - modelling

KW - energy distribution

KW - metal

U2 - 10.1243/095440504323055498

DO - 10.1243/095440504323055498

M3 - Journal article

VL - 218

SP - 363

EP - 374

JO - Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

JF - Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

SN - 0954-4054

IS - 4

ER -