The invention relates to a
magnesium alloy and aluminum
alloy heterogeneous non-vacuum machinery forced rotation semi-
solid brazing method; a
magnesium alloy weldment and an aluminum alloy weldment are clamped on a clamp, Zn-Sn or Zn-Al-Sn
system other
brazing materials are arranged on two surfaces to be brazed, the weldments are heated, the
heating temperature is between 350DEG C to 450DEG C, simultaneously pressure is increased, the
pressure range is 0.1MPa to 1MPa, so that the
brazing materials on a middle layer are in a semi-
solid state, a rotary device is started, the rotating speed is 65r / min to 1500r / min, the temperature is constant during a rotation process, and the rotation time is 10s to 300s. After the rotation, the temperature rises by a certain rate, the heat is insulated at preset temperature, so that the brazing materials dissolve parent materials with a certain thicknesses, the heat insulating temperature is between 400DEG C to 480DEG C, and the heat insulating time is1min to 5min. Afterwards, pressure is increased, the
pressure range is 0.1MPa to 1MPa, the rotary device is started again (secondary rotation), the rotating speed is 65r / min to 600r / min, rotation is stopped after 3s to 60s, and cooling is carried out with a furnace after the heat is insulated for 5 min to 30min. The
magnesium alloy and aluminum alloy heterogeneous non-vacuum machinery forced rotation semi-
solid brazing method can realize the high-efficiency, high-quality and economic connection of a
magnesium alloy and an aluminum alloy.