Within the SMARTWELD project (EU RFCS-2022, GA No. 101112414), significant progress has been made by OPTOPRIM SRL in WP3 – Development of Hybrid Welding at TRL4.
Hybrid laser-GMAW welding trials on 10 mm S355 butt joints have been successfully completed in 3G vertical uphill, 3G vertical downhill, and 4G overhead positions.
The work included:
- Optimization of key process parameters, including joint gap, laser spot size and arc transfer mode.
- Weld quality assessment through visual, radiographic and macrographic evaluations.
- Successful welds in all three positions, demonstrating the feasibility of out-of-position hybrid laser-GMAW welding.
The macrographs highlight sound weld formation across all three welding positions, representing another important step towards robust and industrially applicable hybrid laser-GMAW welding solutions.
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