锻造前对金属进行加热,目的是( )。 -题库考试答案搜索网

锻造前对金属进行加热,目的是( )。

单选题

2021-09-01 23:53

A、提高塑性
B、增加变形抗力
C、降低塑性
D、以上都不正确

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正确答案

A

试题解析

标签：青书学堂大连工业大学机械制造工艺学

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