Aluminium alloy wheel for truck was manufactured by squeezing casting

and the microstructure and mechanical properties of the wheel produced were analyzed.The results show that mechanical properties of the aluminum alloy wheel produced by squeezing casting are superior obviously to those of low pressure casting ones.The tensile strength and yield strength of the squeezed casting wheel are increased by more than 10%

compared with those of the low pressure casting wheel.However microstructure and properties exhibit heterogeneity at varied position

where inner and outer wheel rim has compact and fine microstructure corresponding to a higher mechanical properties while wheel spoke has coarse structure resulted from a low cooling velocity corresponding to a lower mechanical properties.The squeezed casting wheel meets the requirement of truck through bending

radial fatigue and impacting testing.