ALOtec Dresden GmbH
Direct Laser Interference Patterning (DLIP) is a well-established laser-based surface structuring method to fabricate structures in the sub-µm range. Properties, such as friction, wettability or reflectivity can be specifically adapted and improved. The advantages of this technology are the homogeneity of the patterns, the high area throughput and the ability to be simple integrated into a production line. Conventionally, the laser structuring tool or the component to be structured is moved by using a 3-axis gantry system. This allows high processing speeds with high precision, but has restrictions in the degrees of freedom. This presentation describes a new method for the DLIP-tool handling via robot. This enables new degrees of freedom in the production of large components with complex geometries. Based on other robot-based laser applications, such as laser cladding or hardening, the tool is directly attached to the robot. The ns-laser source is an Innoslab-based laser with a power of up to 120 W. The setup of the optics has been configured to produce an elongated rectangular beam with a high depth of focus. Both, optic and laser source, are directly coupled without any deflecting mirrors. The setup is attached to a KUKA KR90 via a quick-release system. In the first experiments stainless steel plates were structured with a pulse frequency of 4 kHz and an output power of about 65 W. The structuring speed was successively increased from 5 mm/s to 120 mm/s.
Abstract
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Poster
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