Since conical part is one of the typical curved parts in sheet metal drawing, research on it has actual significance.

圆锥形零件是曲面类零件拉深成形中较为典型的零件之一，对其充液成形的研究具有实际意义。

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Blank design plays an important role in the process design of sheet metal drawing due to its great impact on the formability of a part.

毛坯外形设计是工艺设计的重要环节，它直接影响工件的成形质量。

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Lay out plate, sheet steel or other heavy metal and mark bending and cutting lines on work piece using protractors, compasses and drawing instruments or templates.

铺设莱板，钢板或其他重金属，用量角器，圆规和绘图工具或模板在工件上标记弯曲和切割线。

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The technique is called "deep drawing, " in which a sheet of metal is pressed around a die until it thins out and is joined perfectly.

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