Journal
45TH SME NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE (NAMRC 45)
Volume 10, Issue -, Pages 708-719Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.promfg.2017.07.026
Keywords
Laser polishing; thermo-physical model; numerical simulation; experimental calibration
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Funding
- Western University (London, Ontario, Canada)
- National Research Council of Canada (London, Ontario, Canada)
- Natural Sciences and Engineering Research Council (NSERC) of Canada
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A three-dimensional CFD model has been developed to predict track width during laser polishing (LP) of H13 tool steel. The developed model incorporates several different mechanisms for heat transfer such as conduction, convection, and radiation as well as temperature dependencies for relevant material properties. Experimental calibration was carried out to obtain adequate absorptivity value. After performing the mesh-sensitivity assessment, simulation results have been validated against experimental data. The relatively low errors obtained suggest that the developed model is capable to accurately describe the effect of process parameters on molten pool dimensions and/or geometry. (C) 2017 Published by Elsevier B.V.
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