%0 Conference Paper %1 fetzer2017experimental %A Fetzer, Florian %A Haoyue, Hu %A Weber, Rudolf %A Graf, Thomas %D 2017 %K myown %T Experimental and numerical investigation of the capillary front and side walls during laser beam welding %X In deep penetration laser beam welding the distribution of absorbed laser intensity on the walls of the capillary determines local recoil pressure which is a driver for melt flow. This again influences the distribution of absorbed laser power and pressure at the capillary. High speed imaging of melting and evaporation caused by laser irradiation of edges of pure iron sheets is performed with the aim to visualize these phenomena at the capillary walls. High speed recordings with a frame rate of up to 100 kHz are acquired. These experiments are used to validate transient simulations of the capillary front wall in laser beam welding by applying an approach where ray-tracing calculations are coupled to a Smoothed Particle Hydrodynamics simulation of the fluid dynamics.

@inproceedings{fetzer2017experimental, abstract = {In deep penetration laser beam welding the distribution of absorbed laser intensity on the walls of the capillary determines local recoil pressure which is a driver for melt flow. This again influences the distribution of absorbed laser power and pressure at the capillary. High speed imaging of melting and evaporation caused by laser irradiation of edges of pure iron sheets is performed with the aim to visualize these phenomena at the capillary walls. High speed recordings with a frame rate of up to 100 kHz are acquired. These experiments are used to validate transient simulations of the capillary front wall in laser beam welding by applying an approach where ray-tracing calculations are coupled to a Smoothed Particle Hydrodynamics simulation of the fluid dynamics. }, added-at = {2018-04-20T12:54:15.000+0200}, author = {Fetzer, Florian and Haoyue, Hu and Weber, Rudolf and Graf, Thomas}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/299847bdca944ec8098f4eefeeb11fc4e/thomas_graf}, eventtitle = {Lasers in Manufacturing Conference 2017}, interhash = {4bee02a9772238290731d2c8ec9aac3d}, intrahash = {99847bdca944ec8098f4eefeeb11fc4e}, keywords = {myown}, timestamp = {2018-04-20T10:54:15.000+0200}, title = {Experimental and numerical investigation of the capillary front and side walls during laser beam welding }, venue = {Munich}, year = 2017 }