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A verified model of laser direct metal deposition using an analytical enthalpy balance method

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

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A verified model of laser direct metal deposition using an analytical enthalpy balance method. / Pinkerton, A.J.; Moat, R.; Shah, K.; Li, L.; Preuss, M.; Withers, P. J.

Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO). Laser Institute of America, 2007.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Pinkerton, AJ, Moat, R, Shah, K, Li, L, Preuss, M & Withers, PJ 2007, A verified model of laser direct metal deposition using an analytical enthalpy balance method. in Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO). Laser Institute of America.

APA

Pinkerton, A. J., Moat, R., Shah, K., Li, L., Preuss, M., & Withers, P. J. (2007). A verified model of laser direct metal deposition using an analytical enthalpy balance method. In Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO) Laser Institute of America.

Vancouver

Pinkerton AJ, Moat R, Shah K, Li L, Preuss M, Withers PJ. A verified model of laser direct metal deposition using an analytical enthalpy balance method. In Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO). Laser Institute of America. 2007

Author

Pinkerton, A.J. ; Moat, R. ; Shah, K. ; Li, L. ; Preuss, M. ; Withers, P. J. / A verified model of laser direct metal deposition using an analytical enthalpy balance method. Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO). Laser Institute of America, 2007.

Bibtex

@inproceedings{610748653ade4cfe995d99a8cd62bfed,
title = "A verified model of laser direct metal deposition using an analytical enthalpy balance method",
abstract = "Analytical modelling of a quasi-stationary laser melt pool without mass addition can be achieved using relatively simple moving surface heat flux solutions. However, including mass addition from a coaxial powder stream alters the laser flux and energy and mass flow pathways and often leads to the problem being modelled using numerical methods. The model described in this paper combines an analytical beam attenuation model to account for beam powder interaction above the melt pool with series of standard solutions for a moving Gaussian heat source to calculate melt pool size and substrate isotherms. A negative enthalpy method is used to compensate for the mass addition to the melt pool. The model is verified using a variety of methods and can predict powder stream mass and temperature distribution at the substrate and final melt pool shape in three dimensions from the major laser direct metal deposition process variables. The model highlights the role of beam-powder interaction in the process.",
author = "A.J. Pinkerton and R. Moat and K. Shah and L. Li and M. Preuss and Withers, {P. J.}",
year = "2007",
language = "English",
booktitle = "Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO)",
publisher = "Laser Institute of America",

}

RIS

TY - GEN

T1 - A verified model of laser direct metal deposition using an analytical enthalpy balance method

AU - Pinkerton, A.J.

AU - Moat, R.

AU - Shah, K.

AU - Li, L.

AU - Preuss, M.

AU - Withers, P. J.

PY - 2007

Y1 - 2007

N2 - Analytical modelling of a quasi-stationary laser melt pool without mass addition can be achieved using relatively simple moving surface heat flux solutions. However, including mass addition from a coaxial powder stream alters the laser flux and energy and mass flow pathways and often leads to the problem being modelled using numerical methods. The model described in this paper combines an analytical beam attenuation model to account for beam powder interaction above the melt pool with series of standard solutions for a moving Gaussian heat source to calculate melt pool size and substrate isotherms. A negative enthalpy method is used to compensate for the mass addition to the melt pool. The model is verified using a variety of methods and can predict powder stream mass and temperature distribution at the substrate and final melt pool shape in three dimensions from the major laser direct metal deposition process variables. The model highlights the role of beam-powder interaction in the process.

AB - Analytical modelling of a quasi-stationary laser melt pool without mass addition can be achieved using relatively simple moving surface heat flux solutions. However, including mass addition from a coaxial powder stream alters the laser flux and energy and mass flow pathways and often leads to the problem being modelled using numerical methods. The model described in this paper combines an analytical beam attenuation model to account for beam powder interaction above the melt pool with series of standard solutions for a moving Gaussian heat source to calculate melt pool size and substrate isotherms. A negative enthalpy method is used to compensate for the mass addition to the melt pool. The model is verified using a variety of methods and can predict powder stream mass and temperature distribution at the substrate and final melt pool shape in three dimensions from the major laser direct metal deposition process variables. The model highlights the role of beam-powder interaction in the process.

M3 - Conference contribution/Paper

BT - Proceedings of the 26th International Congress on Applications of Lasers and Electro-optics (ICALEO)

PB - Laser Institute of America

ER -