LADD – LASER ASSISTED DEEP DRAWING

摘要

In the current work, cup drawing experiments with laser assistance are presented where onlyrnselected areas of the work piece have been heated up. Since the strongest deformations occurrnat the outer circumference of the blank, only that area has been heated up by a defocusedrnlaser beam. Selective laser heating of the work pieces was performed by diode as well asrnNd:YAG laser radiation. The forming load for the experiments was established by a smallrnhydraulic press with a maximum drawing force of 630kN and a hydraulic die cushion. Duringrnthe experiments, the drawing path and all relevant forces have been recorded.rnExperimental results clearly demonstrate that this combined laser forming process isrnenlarging the possibilities of conventional deep drawing.