The article discusses causes and eliminated measures of aluminium alloy die forgings crassitude crystal from four sides of component,technical parameter,temper of die and heat treatment.

• 从锻件的材质、锻造工艺参数、锻模温度、热处理工艺参数四个方面,阐述了铝合金模锻件粗晶缺陷的产生原因及消除措施。