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ASAMBLARI CU STRANGERE PROPRIE<br />
Strangerea corectata<br />
δ<br />
cor<br />
= δ + u + u<br />
R<br />
t<br />
R<br />
( R R )<br />
u = +<br />
u t<br />
1.2<br />
y1<br />
y2<br />
[ α ( t − t ) − ( t − )]<br />
= d α<br />
1 1 0 2 2 t0<br />
Corectie de rugozitate<br />
Corectie de temperatura<br />
S<br />
< δ<br />
max cor max<br />
S max strangere maxima<br />
BUTUC<br />
δ cor min < S min<br />
H 7 / s6<br />
H8/<br />
u7<br />
d d max D max<br />
ARBORE<br />
d min D mi n<br />
D<br />
S min strangere minima<br />
Feb. 2011 - T. Cicone<br />
37<br />
OM-I Cap 4. Asamblari A/B<br />
ASAMBLARI CU STRANGERE PROPRIE - Montaj<br />
Ipoteze Doar butucul este incalzit<br />
Joc initial la montaj C a<br />
Racirea pe durata manipularii Δt c<br />
• t < 100°C on heating plate<br />
Incalzire • t < 250°C in oil<br />
• t > 250°C in oven<br />
Smax<br />
+ C<br />
t = t0<br />
+ + Δ<br />
α d<br />
2<br />
a<br />
t c<br />
Asamblare cu efecte<br />
hidrostatice<br />
Feb. 2011 - T. Cicone<br />
38<br />
OM-I Cap 4. Asamblari A/B<br />
7