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Diode laser and wire – a strong team for laser build-up welding and additive manufacturing

Fraunhofer IWS Dresden and Laserline GmbH, Mülheim-Kärlich developed a wire processing optics, which has been qualified for the application with a high power diode laser for three-dimensional build-up welding and additive manufacturing tasks. With up to 5 kW laser power and a wire diameter of between 0.6 mm und 1.6 mm components can be large-area coated and generated in a three-dimensional manner. Build-up rates of up to 250 cm³/h are possible due to the modified optics.

The efficiency of the laser build-up welding is defined by factors such as energy consumption and coating rates and also by the degree of the utilization of the feedstock material. By substituting traditional powder material by wire, a deposition without any losses can be achieved.

The advancement of the IWS developed COAXwire processing optics unites the benefit of the wire build-up welding technique with the performance of the diode laser developed by the company Laserline GmbH. The processing optics together with the diode laser, with an efficiency of 48 %, significantly enhances the economic efficiency of industrial laser build-up welding.

Exhibitor: Fraunhofer IWS



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