The liquid combination process of die casting and forging is a new forming method which combines processing property of die casting with that of forging.Under the condition of the same process parameter and with the help of orthogonal test

AZ91D magnesium test samples were preproduced by the combination process of die casting and forging and the common die casting

respectively T6 method was also employed to treat the test samples.In addition

the mechanical property of samples was tested

and the microstructure of samples was observed.It was indicated that

under the condition of the same process parameter

the tesile strength and extensibility of the test samples produced by the liquid combination process of die and forging

were increased by 84.394% and 101.761% respectively

the tesile strength and extensibility of the test samples treated by T6 were increased by 94.672% and 121.617% respectively;and the size of grain of the test samples is much smaller

in comparison with those of test samples produced by common die casting.