High output deposition welding: project HoDopp successfully completed

Instead of completely exchanging expensive, worn parts, they can often be repaired by cladding. Up to now, a gas metal arc welding (GMAW) process has been mainly used for cladding. For this several layers must be deposited. Scientists at the Laser Zentrum Hannover e.V. (LZH) have now developed a laser-assisted arc welding process, which requires only a single layer to be deposited. Thus two to three layers can be saved and furthermore, the deposition rate can be increased from 5 to 7.5 kilos per hour.

The project HoDopp: “High-power laser cladding using twin-wire technique without light-arc transmission and with laser-assisted weld-penetration control” was financed by the Federal Ministry of Education and Research (BMBF). The project was completed at the end of 2014.

The final project report (in German) can be accessed below.

PDF icon gemeinsamer-ergebnisbericht-hodopp.pdf593.84 KB