Die structure based on the process of forming small fillet radius is introduced, and deduced the formula according to the principle of volume invariably.
介绍形成小圆角半径的圆孔翻边模具的结构特点，按体积不变的原则，推导了计算公式。
Die structure based on the process of forming small fillet radius is introduced, and deduced the formula according to the principle of volume invariably.
介绍形成小圆角半径的圆孔翻边模具的结构特点，按体积不变的原则，推导了计算公式。
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