CO2 laser heating of surfaces: Melt pool formation at surface

O. Momin; S. Z. Shuja; B. S. Yilbas

doi:10.1016/j.optlastec.2011.08.014

CO₂ laser heating of surfaces: Melt pool formation at surface

O. Momin, S. Z. Shuja, B. S. Yilbas^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The melt pool formation during the heating of titanium and steel surfaces by a moving CO₂ laser beam is examined. The repetitive pulses are introduced in the simulations and the Marangoni effect in the melt pool is incorporated in the model study. The influence of laser scanning speed and the laser intensity parameter on the melt pool size is also considered. The enthalpy-porosity method is adopted to account for the phase change in the irradiated spot. It is found that the influence of laser scanning speed on the melt pool size is considerable, which is more pronounced for laser beam parameter b=1. The melt pool size is smaller for stainless steel as compared to that corresponding to titanium.

Original language	English
Pages (from-to)	463-470
Number of pages	8
Journal	Optics and Laser Technology
Volume	44
Issue number	2
DOIs	https://doi.org/10.1016/j.optlastec.2011.08.014
State	Published - Mar 2012

Keywords

Heating
Laser
Phase change

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1016/j.optlastec.2011.08.014

Cite this

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title = "CO2 laser heating of surfaces: Melt pool formation at surface",

abstract = "The melt pool formation during the heating of titanium and steel surfaces by a moving CO2 laser beam is examined. The repetitive pulses are introduced in the simulations and the Marangoni effect in the melt pool is incorporated in the model study. The influence of laser scanning speed and the laser intensity parameter on the melt pool size is also considered. The enthalpy-porosity method is adopted to account for the phase change in the irradiated spot. It is found that the influence of laser scanning speed on the melt pool size is considerable, which is more pronounced for laser beam parameter b=1. The melt pool size is smaller for stainless steel as compared to that corresponding to titanium.",

keywords = "Heating, Laser, Phase change",

author = "O. Momin and Shuja, \{S. Z.\} and Yilbas, \{B. S.\}",

year = "2012",

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language = "English",

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journal = "Optics and Laser Technology",

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T1 - CO2 laser heating of surfaces

T2 - Melt pool formation at surface

AU - Momin, O.

AU - Shuja, S. Z.

AU - Yilbas, B. S.

PY - 2012/3

Y1 - 2012/3

N2 - The melt pool formation during the heating of titanium and steel surfaces by a moving CO2 laser beam is examined. The repetitive pulses are introduced in the simulations and the Marangoni effect in the melt pool is incorporated in the model study. The influence of laser scanning speed and the laser intensity parameter on the melt pool size is also considered. The enthalpy-porosity method is adopted to account for the phase change in the irradiated spot. It is found that the influence of laser scanning speed on the melt pool size is considerable, which is more pronounced for laser beam parameter b=1. The melt pool size is smaller for stainless steel as compared to that corresponding to titanium.

AB - The melt pool formation during the heating of titanium and steel surfaces by a moving CO2 laser beam is examined. The repetitive pulses are introduced in the simulations and the Marangoni effect in the melt pool is incorporated in the model study. The influence of laser scanning speed and the laser intensity parameter on the melt pool size is also considered. The enthalpy-porosity method is adopted to account for the phase change in the irradiated spot. It is found that the influence of laser scanning speed on the melt pool size is considerable, which is more pronounced for laser beam parameter b=1. The melt pool size is smaller for stainless steel as compared to that corresponding to titanium.

KW - Heating

KW - Laser

KW - Phase change

UR - https://www.scopus.com/pages/publications/84865754758

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DO - 10.1016/j.optlastec.2011.08.014

M3 - Article

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SN - 0030-3992

VL - 44

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JO - Optics and Laser Technology

JF - Optics and Laser Technology

IS - 2

ER -