Author
Abstract
In this work, results of spot hardening in low-carbon steel by using a pulsed
Nd:YAG laser are presented. These results include determination of
hardening depth, diameter of hardened spot, aspect ratio and heat-affected
zone width with varying laser energy density. In order to determine the effect
of irradiation profile on the overall achievable hardness, the profiles of
overlapping, adjacent and separated hardened spots are compared and the
percent coverage of the workpiece as a function of the laser-hardened spot
dimensions.
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