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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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% q; ?, R. a' O+ t' _# D) z& fAccording to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN:: J- H5 o& x; }& g3 n; ^3 t; r
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“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.”. O/ i0 {. {' x4 S' _% L+ @
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" Y5 Y* w+ D' J! f P# ?; ]. 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].
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2 X* {( p9 Y, gI hope this answers your question, but if it is still unclear let me know and I will try to explain further.
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谢谢大家的关注！, @ j4 n1 R5 M `; A: V! o0 }
6 P! {% K9 E# s& V[ 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