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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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: F# [9 D3 o+ C5 i9 Z: H以下翻译仅供参考。。0 {5 ~3 Z" d5 p/ [- o/ g
machined by threaded
+ v( x5 u6 w5 {/ @! ]( t4 H( }7 [(不好翻译,铣螺纹?攻螺纹?)
0 E' I8 m! W8 ]5 Zvalue prior to threading数值(螺纹大小还是切削进给?)参照车螺纹;
) } s6 u/ S- c* h% @: s4 @( \unless otherwise specified all dimensions are in inches and9 H n! d+ t7 r, L7 _
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
+ C1 x! f2 g) k" [# v5 e& ]& L% e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;
# A9 ?' x* T' Y( K2.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)+; }6 P% R3 @1 ?: f8 Z( p
机加工面 g9 j& Q" b9 ]6 j& T
; {3 k, f* I. i3 G3.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?】
! D7 K: d' |7 S3 y?】未注内. Z: u* E, p0 P, A: E3 G: _, U4 X* K# M7 O$ `5 E3 x6 w( R
4.corner breaks 0.15X45 棱边倒角0.15X45
6 g- B7 Y3 |. m5.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( }4 K. h* i u, M& U4 ]: r+ Q' \2 |' T
6.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
& R# Q `0 l4 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°)3 w/ ^1 t* y4 J, u5 e: a
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