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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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Hi XXX,% M/ {7 i( t" r( a5 r$ |8 z8 d
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7 a- B. ?" [; p( b- n! eAccording to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN:
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$ T% z/ Q3 ?" x" G0 C9 p f! A“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.”5 R* O, y% x1 p
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Therefore, 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].- d; i( e, e: ]1 C& {
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% K; Z! H8 o) |% i9 Q) u" }I hope this answers your question, but if it is still unclear let me know and I will try to explain further.! G g; Q$ g0 M8 C" t: W9 y
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2 H# Q. V5 o3 D6 @Thanks
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; l& H. s2 n8 ~ ]0 J0 t" A) B谢谢大家的关注！
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[ 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