Conduction Laser Welding 

Another widely used laser welding method is conduction laser welding. Then laser have in sufficiently high intensity so that material starts to melt but intensity is anyhow low enough so that it can’t vaporize material and thereby keyhole can’t form. Laser beam heats up materials surface so that it melts. Heat transfers trough conduction and convection. Trough this kind of heat transfer mechanism attainable is more shallow and wider than keyhole welds. Welding is done when laser beam and thereby melt pool is moved towards. Wider weld enables welding using wider groove tolerances. On the other hand shallow weld penetration enables only welding of thin sheet metals.