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发表于 2015-5-17 12:39:46
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本帖最后由 seekfor 于 2015-5-17 12:42 编辑
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以下翻译仅供参考。。
* C& v- v, ]: j/ Imachined by threaded
3 T4 s3 }% v! v" H4 W4 n(不好翻译,铣螺纹?攻螺纹?)! l. H: ?( s4 z* h. H
value prior to threading数值(螺纹大小还是切削进给?)参照车螺纹;; ?9 V2 o: a$ }8 a+ V
unless otherwise specified all dimensions are in inches and
^9 b" F! j6 w+ e+ S未注尺寸为英寸,并且
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1.overall length is minimum and longer needed to meet customer requirements are always allowed wothout engingeering approval
" X- L+ P! V9 g3 S: V螺纹有效长度为最小;具体长度在满足客户的要求情况下通常不需要工程批准;# f4 H/ ^2 a1 A, J6 q- y. A& a
2.machined supfaces 250 rms max,thd surfaces 125 rms max机加工面粗糙度250 RMS max(相当于Ra6.3 max左右 【转换关系除以40】) ;螺纹表面粗糙度125 rms max (Ra3.2 max)+& q0 X: O3 Q5 D3 Y9 Q' X
机加工面 g9 j& Q" b9 ]6 j& T
+ F3 V6 d/ y6 V% z3.inside raoius 0.30-0.60 max未注内圆角 0.3-0.6 max 【不知道产品是啥样子的,按英制算这倒角是不是有点大?】' z9 L( F/ x% w6 _5 V# Y8 A' d
?】未注内. Z: u* E, p0 P, A: E3 G! C: f2 x- D5 r9 Z
4.corner breaks 0.15X45 棱边倒角0.15X45
1 f9 _& [8 |+ g" q5.concentricity between 2mach.surf.within 0.15 t.i.r 两机加面同轴度 0.15 . @' G( W9 n/ H2 K( Q% C( }
7 ?. _ t( O( M$ x$ X! v! k6.normality,squareness,parallelism of machined surfaces .005per ingh to a max.of.030for a single surface 机加工表面的垂直度和平行度.005/1 ,对单个表面.030MAX
( K |0 x. d6 d! U7.all thread entry&exit angles to be 25-45 off of thread axis 螺纹孔两端倒角25-45° (又或者是铣螺纹时导入导出过渡角度为25-45°)
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