The effects of impurity element of Fe and microelements of Zn, Cr and Ti on the constituents, dispersoids, grain size, mechanical properties and formability of Al-1.3Mg-1.2Si-0.6Cu-0.3Mn alloy were investigated in the...The effects of impurity element of Fe and microelements of Zn, Cr and Ti on the constituents, dispersoids, grain size, mechanical properties and formability of Al-1.3Mg-1.2Si-0.6Cu-0.3Mn alloy were investigated in the present work by analyzing microstructures, phase composition, mechanical tests. The results indicated that with the increase of Fe content, the insoluble constituents increased, and the mechanical properties and r15 of alloy sheets debased, which can be recovered by the addition of microelements Zn, Cr and Ti. Al-1.3Mg-1.2Si-0.6Cu-0.3Mn alloy sheets in the T4 temper are difficult to strengthen with paint-bake treatment in automobile factory.展开更多
冲压件生产中,开卷落料的矫直参数直接影响了板料面品质量和材料性能,进而影响成形性。为了确定可靠的矫直参数范围、保证开卷后板料的面品质量和材料性能,进而有效指导开卷落料生产,以机盖外板为例进行研究。所用材料为6000系Al Si Mg...冲压件生产中,开卷落料的矫直参数直接影响了板料面品质量和材料性能,进而影响成形性。为了确定可靠的矫直参数范围、保证开卷后板料的面品质量和材料性能,进而有效指导开卷落料生产,以机盖外板为例进行研究。所用材料为6000系Al Si Mg合金,材料厚度为1 mm,材料性能偏上限需求,通过调整矫直参数(矫直机入口高度)得到不同性能的材料,并利用CAE分析、实际生产验证、后工序合边验证等方法,最终确定了机盖的矫直参数≥-0.6 mm (矫直机入口高度≥-0.6 mm)。其他在产零件可依据此方法确定矫直参数范围,减少停机时间,降低材料不合格风险,提高生产效率,降低生产成本。展开更多
文摘The effects of impurity element of Fe and microelements of Zn, Cr and Ti on the constituents, dispersoids, grain size, mechanical properties and formability of Al-1.3Mg-1.2Si-0.6Cu-0.3Mn alloy were investigated in the present work by analyzing microstructures, phase composition, mechanical tests. The results indicated that with the increase of Fe content, the insoluble constituents increased, and the mechanical properties and r15 of alloy sheets debased, which can be recovered by the addition of microelements Zn, Cr and Ti. Al-1.3Mg-1.2Si-0.6Cu-0.3Mn alloy sheets in the T4 temper are difficult to strengthen with paint-bake treatment in automobile factory.
文摘冲压件生产中,开卷落料的矫直参数直接影响了板料面品质量和材料性能,进而影响成形性。为了确定可靠的矫直参数范围、保证开卷后板料的面品质量和材料性能,进而有效指导开卷落料生产,以机盖外板为例进行研究。所用材料为6000系Al Si Mg合金,材料厚度为1 mm,材料性能偏上限需求,通过调整矫直参数(矫直机入口高度)得到不同性能的材料,并利用CAE分析、实际生产验证、后工序合边验证等方法,最终确定了机盖的矫直参数≥-0.6 mm (矫直机入口高度≥-0.6 mm)。其他在产零件可依据此方法确定矫直参数范围,减少停机时间,降低材料不合格风险,提高生产效率,降低生产成本。
