This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 193.50.216.162 This content was downloaded on 02/12/2013 at 10:32 Please note that terms and conditions apply. A new approach to compute multi-reflections of laser beam in a keyhole for heat transfer and fluid flow modelling in laser welding View the table of contents for this issue, or go to the journal homepage for more 2013 J. Phys. D: Appl. Phys. 46 505305 (http://iopscience.iop.org/0022-3727/46/50/505305) Home Search Collections Journals About Contact us My IOPscience