试题与答案

冷加工的构件会产生哪些质量缺陷?采用什么方法可以消除这些缺陷?

题型:问答题 简答题

题目:

冷加工的构件会产生哪些质量缺陷?采用什么方法可以消除这些缺陷?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:在冷加工中,钢材局部所受的压力一般,都要超过屈服点,凡冷加工中超过屈服点的钢材,由于内部组织的变化,都会产生一种冷硬(冷作硬化)现象。消除方法:(1)铲,刨等方法将边缘去掉3-5mm。(2)用铰...

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