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发明公开
CN108515100A 金属板材区域性压薄方法及采用该方法制作的卡托 有权

金属板材区域性压薄方法及采用该方法制作的卡托
摘要：
本申请提供了一种金属板材区域性压薄方法，包括：S201、提供金属板材并对提供的金属板材进行第一次冲压压薄操作；先将所述金属板材无需压薄的基体部进行固定，提供第一压薄冲子对所述金属板材需要压薄的区域进行第一次压薄，第一次压薄后在所述金属板材上形成压薄区及位于所述压薄区与基体部的结合处的台阶。S202、将经过第一次冲压压薄的金属板材进行第二次冲压压薄；提供第二压薄冲子继续向下挤压所述压薄区，此时，所述第二压薄冲子的边缘与所述台阶侧面之间存在0.02-0.08mm的防刮间隙。本申请还包括一种采用金属区域性压薄方法制造的卡托。
摘要（英）：

The invention provides a metal panel regional pressing-thin method. The method comprises the steps that S201, a metal panel is provided, first-time punching pressing-thin operation is conducted on theprovided metal panel, a base body part, not needing pressing-thin operation, of the metal panel is fixed, a first pressing-thin punch is provided for conducting first-time pressing-thin operation onthe area, needing the pressing-thin operation, of the metal panel, and after the first-time pressing-thin operation, a pressing-thin area and a step located at the combining position of the pressing-thin area and the base body part are formed on the metal panel; and S202, the metal panel obtained after the first-time punching pressing-thin operation is subjected to second-time punching pressing-thin operation, a second pressing-thin punch is provided for continuously downwards extruding the pressing-thin area, and a scratch preventing gap of 0.02-0.08 mm exists between the edge of the second pressing-thin punch and the side face of the step. The invention further discloses a card support manufactured through the metal regional pressing-thin method.

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