题目内容

弯曲件的变形特点是：内层金属，外层金属，变形区料厚，而弯曲中性层；当弯曲线较长时，弯曲线是的，横截面是畸形的。

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弯曲是指把金属坯料弯成一定或的过程。

弯曲时最小弯曲半径越小则表示材料所允许的变形程度越大。（）

A. 对
B. 错

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