|
|
楼主 |
发表于 2009-7-30 20:51:09
|
显示全部楼层
来自： 中国浙江温州
9 `3 F, [$ q' p* _
. ?& u, i$ C0 x' y. E( ~
( s* l. ~: A& \) P' z( Z' P6 O0 j6 e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：" a, r; S. @6 y% ?/ {
+ n9 N2 g9 k2 u6 \“
& T( h* ?$ e) G2 UHi XXX,+ ^. c# E0 n) [ Z3 ]8 m8 T3 L
+ Q6 r) C+ G$ @6 q3 j
9 l: p$ e: A" C3 w O
According to ASME Y14.5-1994 para. 2.5, single limits dimensions such as those indicating MAX or MIN: J3 \; |; R) p' f( o! o
; S L+ C5 {. {+ M) a+ v* g0 I; V0 N+ _9 ?, o9 K
“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.”
; V7 z5 I# T1 g3 L! ?5 W# p: z2 z* j7 f% p, s0 h! R4 P3 s" z
! Q4 a6 {/ ~" y
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].: ]' f$ h h4 w8 K
2 }$ K- t$ h0 w) Q3 g% {) l# O
( S( P, i. h9 I, q
I hope this answers your question, but if it is still unclear let me know and I will try to explain further.
4 q" ]8 {$ i# e9 Z
- Q0 ~' E/ j: A2 M
" b7 O! m2 n, a) D4 p* ~4 TThanks
* D" d) J& z. v: H# X/ JXXX
/ w8 Q2 i% \' y4 T”8 z8 E! d* M8 q. ^. L* f, y# B
8 F6 m4 }8 G4 j6 U, o
谢谢大家的关注！( _+ n9 [. T& |2 D; ?
- d) X7 _. W1 p& q$ r1 p' I. n
[ 本帖最后由 wangyanwei 于 2009-7-30 20:53 编辑 ] |
|
发表于 2009-7-30 14:34:47
:P :P :P :P