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为了获得变形镁合金AZ31、AZ61和AZ91板材的基本力学性能和成形性能,自行设计了在线加热系统,在加热温度175～400℃和应变速率为10-3、10-2、10-1 s-1的条件下,对三种镁合金板进行拉伸实验,研究材料的屈强比、成形温度和应变速率等对成形性能的影响,并且对三种镁合金成形性能进行了对比。该研究可以用于指导变形镁合金板成形生产,为优化镁合金成形工艺提供依据。
In order to obtain the basic mechanical properties and formability of the deformed magnesium alloy AZ31, AZ61 and AZ91, an on-line heating system was designed by ourselves. When the heating temperature was between 175 and 400 ℃ and the strain rate was 10-3, 10-2 and 10-1 s- 1 under the conditions of the three kinds of magnesium alloy plate tensile test to study the yield strength ratio, forming temperature and strain rate on the forming performance, and the forming properties of the three magnesium alloys were compared. The study can be used to guide the deformation of magnesium alloy sheet forming production, to provide the basis for optimizing the magnesium alloy forming process.