Multiobjective optimisation of nanosecond fiber laser milling of 2024 T3 aluminium alloy

•Laser milling test were carried out on AA 2024 T3, adopting a Q-Switched fiber laser.•The depth, roughness and material removal rate under different process conditions were measured.•ANalysis Of VAriance (ANOVA) was adopted to evaluate the effect of the process parameters.•Response Surface Method (RSM) was adopted to model the machining process.•Multi-Response Optimisation (MRO) was adopted to optimise the process parameters.