The effects of electromagnetic stirring on microstructures and ring rolling properties of semi continuous casting 2219 aluminium alloy ingot were investigated contrastively. The results reveal that compared with the conventional semi-continuous casting

the solidification structure of semi-continuous casting 2219 aluminum alloy ingot by electromagnetic stirring becomes finer

more uniform and rounder. The overall average grain size is reduced from 546 μm to 186 μm

and the difference ratio of the maximum and minimum grain size is reduced from 19.2% to 3.8%. After the ring rolling deformation

the properties of 2219 aluminum alloy ring rolled with electromagnetic stirring ingot are significantly enhanced. The mechanical properties of the alloy reach more than 460 MPa and 11% in tensile strength and the elongation of high direction

transverse direction and radial direction

and the consistency of properties in different positions and directions is improved significantly.