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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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, D/ o( ], s/ C8 F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:5 P0 i1 Z/ P$ S5 c6 w& a. s
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2 g( o# E6 M- j( n* Z“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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1 ^/ Z$ ~9 {- o) f; D; t3 o7 PTherefore, 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].: \7 H9 Y+ w" {1 [6 D. q: i0 W
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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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Thanks
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$ O$ u' Q- G9 D8 Y+ k$ P谢谢大家的关注！
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. Q v) @3 r+ `: R# Z' j; Z1 G[ 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