| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10418785 | Journal of Materials Processing Technology | 2012 | 14 Pages |
Abstract
⺠This paper describes the modeling process of heat source and driving forces in disk laser welding to analyze the heat transfer and fluid flow in weld pool. ⺠Calculated fusion zone profile is in good agreement with the experimental result. ⺠The effects of laser beam profile (Gaussian vs. measured), vapor shear stress, vapor heat source and sulfur content are analyzed. ⺠The effects of beam profile, vapor shear stress and Marangoni flow by sulfur addition are insignificant. ⺠Vapor heat source has a profound effect on the upper part of the molten pool shape.
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Authors
Won-Ik Cho, Suck-Joo Na, Claus Thomy, Frank Vollertsen,