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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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; [- E9 o2 K4 F( t8 ^& Q1 o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,
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& r% H- c3 r( B) }* B$ Z/ MAccording to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN:! G0 `+ f! h/ H5 r$ h
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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.”# g. v4 z8 U5 \. B7 `
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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].8 i2 Z+ u( @/ [
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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.
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XXX7 ]7 r+ ^6 R1 I6 g# H2 O: U1 y R
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谢谢大家的关注！2 N5 \0 s5 I4 B9 c% x2 t
( Y' i9 H- Q, T$ S/ U* F) B[ 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