TY - JOUR A1 - Müller, A. A1 - Goecke, S.-F. A1 - Sievi, P. A1 - Albert, F. A1 - Rethmeier, Michael T1 - Laser beam oscillation strategies for fillet welds in lap joints JF - Physics procedia N2 - Laser beam oscillation opens up new possibilities of influencing the welding process in terms of compensation of tolerances and reduction of process emissions that occur in industrial applications, such as in body-in-white manufacturing. The approaches are to adapt the melt pool width in order to generate sufficient melt volume or to influence melt pool dynamics, e.g. for a better degassing. Welding results are highly dependent on the natural frequency of the melt pool, the used spot diameter and the oscillation speed of the laser beam. The conducted investigations with an oscillated 300 µm laser spot show that oscillation strategies, which are adjusted to the joining situation improve welding result for zero-gap welding as well as for bridging gaps to approximately 0.8 mm. However, a complex set of parameters has to be considered in order to generate proper welding results. This work puts emphasize on introducing them. KW - Laser beam welding KW - Gap compensation KW - Process monitoring and control KW - System technology KW - Automotive application PY - 2014 DO - https://doi.org/10.1016/j.phpro.2014.08.149 SN - 1875-3892 VL - 56 SP - 458 EP - 466 PB - Elsevier CY - Amsterdam [u.a.] AN - OPUS4-31437 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -