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发表于 2009-7-30 20:51:09
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来自： 中国浙江温州
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我也联系了美国的制图者，刚收到他的回复，基本和上述仁兄的分析吻合。 现分享下他的回复内容，如下：
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According to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN: q" x0 X b0 y
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; k5 l- k" U6 `% X% g' D7 ?1 R“Single limits are used where the intent will be clear, and the unspecified limit can be zero or approach infinity and will not result in a condition detrimental to the design.”& f% Z+ x/ S4 s i
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" x- f" v) o% L! o9 wTherefore, the .0015 max. radius or chamfer on drawing does not require a radius or chamfer, and the edge can be sharp, but if a radius or chamfer is present, it must not be any larger than .0015 [0.038 mm].* W* I0 h) y$ l3 \& ^
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I hope this answers your question, but if it is still unclear let me know and I will try to explain further.2 k$ v; m1 ?: Y. `; j
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Thanks
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2 o% i7 o( m) F6 ^: Y谢谢大家的关注！4 J6 W; I/ E6 ?9 G
, m$ g! p4 u& V& X. z2 D[ 本帖最后由 wangyanwei 于 2009-7-30 20:53 编辑 ] |
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发表于 2009-7-30 14:34:47
:P :P :P :P