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(一)加工精度
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1、圆度允差(mm) D=120mm
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<0.01 | 0.015 | 0.02 | >0.02 | ||
D=200mm
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<0.02 | 0.03 | 0.035 | >0.035 | ||
3、表面粗糙度Ra值(μm)钻孔
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<6.3 | 6.3 | 12.5 | >12.5 | ||
镗孔
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<1.6 | 1.6 | 3.2 | >3.2 | ||
滚压
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<0.1 | 0.2 | 0.4 | >0.4 | ||
(二)结构性能
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