Ravindran, K. ; Srinivasan, J. ; Marathe, A. G. (1995) Role of surface tension driven convection in pulsed laser melting and solidification Proceedings of the Institution of Mechanical Engineers - Part B: Journal of Engineering Manufacture, 209 (1). pp. 75-82. ISSN 0954-4054
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Official URL: http://pib.sagepub.com/content/209/1/75.short
Related URL: http://dx.doi.org/10.1243/PIME_PROC_1995_209_056_02
Abstract
Surface melting by a stationary, pulsed laser has been modelled by the finite element method. The role of the surface tension driven convection is investigated in detail. Numerical results are presented for a triangular laser pulse of durations 10, 50 and 200 ms. Though the magnitude of the velocity is high due to the surface tension forces, the present results indicate that a finite time is required for convection to affect the temperature distribution within the melt pool. The effect of convection is very significant for pulse durations longer than 10 ms.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Sage Publications. |
| ID Code: | 79927 |
| Deposited On: | 30 Jan 2012 05:11 |
| Last Modified: | 30 Jan 2012 05:11 |
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