针对铝和铝合金锻件中常见的粗晶缺陷,通过试验,对粗晶生成原因作了探讨,挤压棒中的M组织产生再结晶是粗晶生成的直接原因,设法保持挤压材料的热稳定性以防止粗晶是可行的。因此,采取保持锻件热稳定性的措施及相应的锻造新工艺,可以获得质量较高的锻件。 Aimed at the common coarse grain defects in aluminum and aluminum alloy forgings, the reasons for the formation of coarse grains were discussed. The recrystallization of the M structure in the extruded rods is the direct cause of the coarse grains, trying to keep the heat of the extruded material Stability to prevent coarse grain is feasible. Therefore, to take measures to maintain the thermal stability of forgings and the corresponding forging new technology, you can get higher quality forgings.