【判断题】【消耗次数：1】
加工表面层产生的残余压应力，能提高零件的疲劳强度。
①
正确
②
错误
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相关题目
【单选题】
在机械加工工艺过程中安排零件表面加工顺序时，要“基准先行”的目的是（）。
①
避免孔加工时轴线偏斜
②
避免加工表面产生加工硬化
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消除工件残余应力
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使后续工序有精确的定位基面
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在机械加工工艺过程中安排零件表面加工顺序时，要“基准先行”的目的是（）
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避免孔加工时轴线偏斜
②
避免加工表面产生加工硬化
③
消除工件残余应力
④
使后续工序有精确的定位基面
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