Effects of electromagnetic filling on microstructure and properties of Al alloy components in low pressure castings were investigated. The key influential factors on microstructure and properties of the Al alloy components were determined by orthogonal testing and metallographic analysis. The results show that the influential orders of electric current

magnetic inductivity and cyclic time on the properties of the ZL104 alloy components are as follows: magnetic inductivity

then electric current

and then cyclic time. Electromagnetic field can effectively refine the microstructure of the components

significantly improving the mechanical properties of the ZL104 alloy components in low pressure casting.