Abstract
The application of lasers in micromanufacturing is of increasing interest. This ongoing trend is mainly driven by a continuous technical and economical improvement of laser sources. For the production of metal parts in a microrange, the so-called size effects have to be taken into account. In this paper, a laser-based microupsetting process is presented which takes advantage of scaling effects in order to optimize the conventional multi-stage upsetting process. The principle of this laser free form melting process is described. Furthermore, energy coupling mechanisms are investigated by experiments and analytical models.
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