Optimization of the Laser Hardening Process by Adapting the Intensity Distribution to Generate a Top-hat Temperature Distribution Using Freeform Optics
Source abstract
Abstract
Laser hardening is a surface hardening process which enables high quality results due to the controllability of the energy input. The hardened area is determined by the heat distribution caused by the intensity profile of the laser beam. However, commonly used top-hat laser beams do not provide an ideal temperature profile. Therefore, in this paper the beam profile, and thus the temperature profile, is optimized using freeform optics. The intensity distribution is modified to generate a top-hat temperature profile on the surface. The results of laser hardening with the optimized distribution are thereupon compared with results using a top-hat intensity distribution.
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Research context
OpenAlex topics: Laser Material Processing Techniques · Additive Manufacturing Materials and Processes · Advanced optical system design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Steinbachstraße 19, 52074 Aachen, Germany
Aachen Center for Integrative Lightweight Production (AZL), RWTH Aachen University, Campus-Boulevard 30, 52074 Aachen, Germany
Fraunhofer Institute for Production Technology IPT, Steinbachstraße 17, 52074 Aachen, Germany
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