Physics-based melt pool stability index for beam shape selection in high-speed laser welding of AA5754 battery cooling plates

This supplementary material accompanies the ICALEO2026 paper (currently under review) titled "Physics-based melt pool stability index for beam shape selection in high-speed laser welding of AA5754 battery cooling plates". The paper investigates the influence of pre-defined beam intensity distributions on melt pool stability and weld seam morphology during high-speed laser welding of 1 mm-thick EN AW 5754 aluminium overlap joints. A conventional multi-mode beam and three Coherent Beam Combining (CBC)-generated beam configurations were evaluated at welding speeds of 100, 400, and 600 mm/s, with melt pool dynamics characterised using high-speed imaging and metallographic analysis. This repository provides additional experimental results and supporting data that complement the findings presented in the main paper.