There exist different die casting defects in different aluminum alloy castings with obviously different size and structure which are formed in one die during die casting process. Originations of different defects were analyzed by taking into account for pouring

processing parameters and die design

and modified countermeasures were presented. Practical production verifies that the confliction of shooting parameters should be avoided as possible in die casting parts with large difference in size in one die. It is the key parameters for obtaining high quality die casting parts by balancing die temperature.