Laser Hardening Process with 2D Scanning Optics

The main propose of this paper is to study the laser hardening process with scanning or moving optics. This no conventional laser process needs knowledge of the thermal history in the part and an accurate control of process temperature. To this end, the new variables involved in the process, as scanning speed or distance between laser tracks, has been analyzed and compared with the conventional laser hardening process. Also, the different strategies involved to sweep the area to harden have been studied, recording thermal history in the part with contactless methods.