The application relates to the technical field of
bimetal part manufacturing, and particularly discloses an aluminum-
magnesium interface intermediate layer high-flux screening device and method for quantitatively delivering
magnesium droplets, which comprises an
inert atmosphere experiment cavity; a bearing platform arranged in the cavity and used for fixing an aluminum
alloy plate, wherein the bottom of the bearing platform is connected with a two-dimensional moving mechanism and is provided with a
heating element; a wire-
powder coaxial composite device, which comprises a
laser emitter, a beam deflection mirror, a focusing lens and a plurality of independently controlled
powder device slots, and a
laser beam acts on the surface of the aluminum
alloy plate after passing through the focusing lens; a
magnesium wire spool and a wire feeding roller, which feeds the magnesium wire from the magnesium wire spool to the heating area of the
laser emitter. The device uses a plurality of
powder device slots to sequentially deposit a plurality of intermediate layer coatings on the same aluminum
alloy plate, and realizes the quantitative delivery of magnesium droplets by combining the quantitative wire feeding and
laser heating, so that a large number of aluminum-magnesium interface preparations of different intermediate
layers can be completed on the same substrate in parallel, and the screening efficiency and data comparability are effectively improved.