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machined by threaded
( [# j/ E$ Q, a+ _! }4 x6 ]- r螺纹加工方式
2 a+ |4 i: l3 f- N' T: U! p6 nvalue prior to threading
4 f% F: x5 |; i6 Z% C# S攻螺纹之前的尺寸
3 G5 N ?$ H" t3 Funless otherwise specified all dimensions are in inches and2 F: H" Z, ?+ b1 W2 S
除了特殊要求外,全部尺寸为英寸单位
$ A2 Q* _# t2 G" H1 _1.overall length is minimum and longer needed to meet customer requirements are always allowed wothout 1 G% {, o- V9 @' U
1 J5 S9 t/ H5 ?8 r+ F8 a, _engingeering approval4 [$ E J- C& D: o' Q p
总体长度尺寸为最小,若按照客户要求增长是被允许的,也不需要工程师批准
- \6 X5 ?# p' L& ]; Y2.machined surfaces 250 rms max,thd surfaces 125 rms max
/ J w; N' ?- X O 机加工表面粗糙度为250 rms(Ra6.3),螺纹表面粗糙度125rms(Ra 3.2)# w0 M6 w# s+ }2 i5 {( Q
3.inside raoius 0.03-0.06 in.
2 g# F1 w: x9 n) n5 f 内部半径为0.8-1.5,1.5为最大! U0 c% f$ z5 P4 v6 p% g( U
4.corner breaks 0.015X45 in.% o0 A$ @: i4 [: S9 I3 ]6 J8 N5 h
棱边倒角0.4X453 \" m0 n/ O/ v7 W% V
5.concentricity between 2 mach.surf.within 0.015 t.i.r
n; w4 i& N6 s4 G( N* n2 U 两机器的同心度误差量在0.4内
8 Y/ L3 M% Z; M r+ b0 ?+ N7 }6.normality,squareness,parallelism of machined surfaces .005per inch to a max.of.03 for a single surface; W/ Z( K6 E# Q& v, p9 U( Z9 E
一般的,机加工表面的垂直度和平行度.005/1 ,对单个表面.030/1 MAX5 v1 B- _4 D7 C) ?' ^7 L
7.all thread entry&exit angles to be 25-45 off of thread axis
5 a% L: r0 k& O2 r/ ^ 所有螺纹的起始和脱离角都是与螺纹中心轴夹角范围为25-45 deg
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