In sheet metal, drawing is a process of forming flat sheet metal into hollow shapes by mean of a punch that causes the metal to flow into the die cavity.

在板金上，拉伸是一个通过冲床将平板金属冲入模腔拉成中空形状工件的工艺过程。

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In sheet metal, drawing is a process of forming flat sheet metal into hollow shapes by mean of a punch that causes the metal to flow into the die cavity.

在板金上，拉伸是一个通过冲床将平板金属冲入模腔拉成中空形状工件的工艺过程。

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