### Abstract

An axis-symmetry model of the fluid flow and heat transfer of laser melted pool is developed. The model corresponds physically to a stationary laser source. Non-dimensional form of the governing equations are derived. Four dimensionless parameters arise from the non-dimensionalization, namely, Peclet number, Prandtl number, Dimensionless melting temperature, and Radiation factor. Their effects and significances are discussed. Numerical solutions for some low melting point metals are obtained. The solid liquid interface, which is not known a priori, is solved. Quantitative effects of the dimensionless parameters on pool shape are obtained. In order to understand the process in a more physical sense, the effects on pool shape due to process parameters, total power and beam radius, are also presented. In the presence of the flow field, the heat transfer becomes convection dominated. Its effect on isotherms within the molten pool is discussed.

Original language | English (US) |
---|---|

Title of host publication | Unknown Host Publication Title |

Publisher | Metallurgical Soc of AIME |

Pages | 3-16 |

Number of pages | 14 |

ISBN (Print) | 0895204924 |

State | Published - 1985 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Engineering(all)

### Cite this

*Unknown Host Publication Title*(pp. 3-16). Metallurgical Soc of AIME.

**AXIS-SYMMETRY MODEL FOR CONVECTION IN A LASER MELTED POOL.** / Chan, Cholik; Mazumder, J.; Chen, M. M.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Unknown Host Publication Title.*Metallurgical Soc of AIME, pp. 3-16.

}

TY - GEN

T1 - AXIS-SYMMETRY MODEL FOR CONVECTION IN A LASER MELTED POOL.

AU - Chan, Cholik

AU - Mazumder, J.

AU - Chen, M. M.

PY - 1985

Y1 - 1985

N2 - An axis-symmetry model of the fluid flow and heat transfer of laser melted pool is developed. The model corresponds physically to a stationary laser source. Non-dimensional form of the governing equations are derived. Four dimensionless parameters arise from the non-dimensionalization, namely, Peclet number, Prandtl number, Dimensionless melting temperature, and Radiation factor. Their effects and significances are discussed. Numerical solutions for some low melting point metals are obtained. The solid liquid interface, which is not known a priori, is solved. Quantitative effects of the dimensionless parameters on pool shape are obtained. In order to understand the process in a more physical sense, the effects on pool shape due to process parameters, total power and beam radius, are also presented. In the presence of the flow field, the heat transfer becomes convection dominated. Its effect on isotherms within the molten pool is discussed.

AB - An axis-symmetry model of the fluid flow and heat transfer of laser melted pool is developed. The model corresponds physically to a stationary laser source. Non-dimensional form of the governing equations are derived. Four dimensionless parameters arise from the non-dimensionalization, namely, Peclet number, Prandtl number, Dimensionless melting temperature, and Radiation factor. Their effects and significances are discussed. Numerical solutions for some low melting point metals are obtained. The solid liquid interface, which is not known a priori, is solved. Quantitative effects of the dimensionless parameters on pool shape are obtained. In order to understand the process in a more physical sense, the effects on pool shape due to process parameters, total power and beam radius, are also presented. In the presence of the flow field, the heat transfer becomes convection dominated. Its effect on isotherms within the molten pool is discussed.

UR - http://www.scopus.com/inward/record.url?scp=0022223595&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022223595&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0022223595

SN - 0895204924

SP - 3

EP - 16

BT - Unknown Host Publication Title

PB - Metallurgical Soc of AIME

ER -