Using variable blank holder force can remarkably improve the forming performance, and the limiting drawing ratio would reach 5.0.

采用变压边力可以明显提高板材的冲压性能，极限拉深比将达到5.0。

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Through the limiting drawing ratio tests, the influences of rolling, annealing, blank holder force, drawing gap, drawing temperature and speed on the forming performance were investigated.

通过极限拉伸比试验，研究了轧制、退火、拉伸温度、拉伸速度、拉延间隙以及压边力等工艺因素对镁合金板材成形性能的影响。

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