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大家讨论一下有什么需要完善之处。! D# R$ L6 z1 { ~& Z! ]
: s+ ~( v" a& o! i7 ?9 R: T5 H3 _NOTES:
* o* P6 w, g. F8 F9 k, [- S& q/ N1. MATERIAL: ALLOY STEEL 9310H-NORMALIZED & TEMPERED TP HRc 32-40
, G* j0 O/ Y* [& Y% {4 `(AIR CRAFT QUALITY FORGING).4 w T n# {; s9 p4 n! j( a
2. CENTERS ARE MANDATORY ON BOTH ENDS OF SHAFT. ALL DIAMETERS MUST
, A% q8 r# u+ q( KBE MACHINED USING THESE CENTERS AND -A- & -B- DIAMETERS MUST BE& b& W) S# F; [6 v) b6 g# u3 L8 e9 O
CONCENTRIC TO THESE CENTERS WITHIN 0.005 TIR.
5 |# [3 l: r! [. L0 ^) |3 T3. DYNAMICALLY BALANCE WITHING 0.26 OZ-IN AT PLANES INDICATED.
" L$ L" e7 L) h( r! w1 i# bINSTALL HALF-KEY IN THE KEYWAY DURING BALANCING.4 U; h6 q X6 |* S! {' K
4. PROTECT THESE SURFACES FROM SCRATCHES AND TOOL MARKS.8 v' m I8 J0 k4 i, s6 C) r$ N
5. WHILE HOBBING LEAVE .29-.30 GRINDING STOCK TO FINISH THE GEAR.( I3 S, a4 |6 y+ R% P* @/ v+ c
6. CASE CARBURISE AREA MARKED (**) AND HARDEN TO RC 58-64. FINISHED- e/ e; C( S- R; Y2 \
CASE DEPTH TO BE RC 50 AT 0.4-0.6 DEEP. REMAINDER TO BE RC 32-40.
( Z/ E$ Y$ ~8 d+ ~7. GRIND THE TEETH PER GEAR DATA AFTER HARDENING.
0 M' t! v- e9 [% @! l P8. DO NOT GRIND ROOT OF GEAR TOOTH. USE PROTUBERANT HOB.
+ X& D! D3 V% z" r8 r S9. ALL FILLET RADII TO BE CAREFULLY BLENDED, POLISHED AND FREE OF1 t, r- `* f. e: C) q) L+ H
TOOL MARKS.$ ?) O2 z6 R4 j8 y
10.UNLESS OTHERWISE SPECIFIED, CONCENTRICITY, SQUARENESS &0 h4 i% a3 ^, r u
PARALLELISM TO BE WITHIN 0.254 TIR
, |: o9 U" ]9 {+ z11.GEAR ACCURACY DATA TO BE DETERMINED FROM DATUM -A- & -B- (SHAFT).
% z2 U1 ^9 R B' C5 |. m/ p2 k4 |4 [$ h3 N12.MAGNETIC PARTICLE TEST AND INSTPECT.9 {2 ~5 f# a2 w. d7 v* _
13.AFTER FINAL GRINDING, BLEND ALL SHARP EDGES, REMOVE ALL BURRS.& h' _# V. z r- K _$ D& V E
14.BURNISH MARKED AREA WITH (*).. |4 C) e5 J, S6 k0 Q) D
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发表于 2012-3-24 23:19:59
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