draw punch
... 尖冲头 pinpunch 拉冲头 draw punch 平冲头 flat punch ...
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此外，拉深速度和冲头温度对AZ31镁合金的拉深成形也有重要影响。
Further, deep drawing speeds and punch temperatures during deep drawing process can also exert significant influence on the deep drawing of AZ31 magnesium alloy.
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