Due to its complex structure

air holes and other defects often occur at key positions in the actual production of automobile aluminum alloy rear longitudinal beam. The mold filling and solidification process of vacuum die casting aluminum alloy rear longitudinal beam was investigated based on the AnyCasting simulation software. The results indicate that serious air entrainment occurs at the loaded position of rear longitudinal beam during liquid metal filling. During the solidification of liquid metal

shrinkage porosity and other defects occur at the local wall thickness of the rear longitudinal beam. Based on the results of simulation analysis

the structure of the overflow system was optimized. By adding multiple overflow grooves at the position with serious gas volume

the casting defects at the loaded end of the rear longitudinal beam can be eliminated

and the integrated forming of the rear longitudinal beam can be realized.