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楼主 |
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：; f, U% d3 \6 u+ K f
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Hi XXX,
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# {. q+ B& l L' ?$ H$ xAccording to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN:
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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.”
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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].
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/ F% D- A6 W/ n! P- RI hope this answers your question, but if it is still unclear let me know and I will try to explain further.$ w) D: Q) k$ h- D j
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6 u2 f$ N8 n: y! k/ b+ [Thanks) |' X" I, {0 S: c. c
XXX
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谢谢大家的关注！+ E4 F4 b* x( ^* J$ l3 J# }
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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