Product Code: ICA11_806

Distortion Control during Laser Beam Welding of Shaft-Hub Joints Within a Process Chain
Authors:
Frank Buschenhenke, BIAS- Bremer Insitut fur Amgewandte GmbH; Bremen Germany
Thomas Seefeld, BIAS- Bremer Insitut fur Amgewandte GmbH; Bremen
Frank Vollertsen, BIAS- Bremer Insitut fur Amgewandte GmbH; Bremen
Presented at ICALEO 2011

The joining of shaft-hub connections is gaining importance in power train applications. The quality demands in abrasion and power transmission are playing a major role. Dimensional as well as repeat accuracies are essential quality criteria, which have to be controlled. The laser beam sources of the new generation permit a high power welding process and high beam quality at the same time. These laser beams are capable of producing deep and narrow weld seams. The understanding of the whole process chain in view of different distortion potentials introduced in each processing step provides the ability to control the distortion of the welded components.
This work deals about compensation strategies of deformations during laser beam welding in axial welded shaft-hub joints made of steel. Furthermore simultaneous welding with two laser beams and the influence of the process chain were investigated.
To characterize the influence of these strategies tactile differential measurements were done. The results were discussed regarding numerical calculations in the FEM application SYSWELD.