Due to the weight loss requirements of new energy vehicles

the battery shell is usually made of die casting aluminum alloy with light weight

easy to process

high temperature and corrosion resistance

good heat transfer and electrical conductivity.The die casting battery housing requires high technological parameters

and the clamping force of the die casting machine is too large

so there exist many problems in the process of die casting.MAGMA analysis was used to understand the defect formation in die casting process

and corresponding measures were used to solve the problems

which provided reference for the development of structural parts of new energy vehicles.