Prelucrarea arborelui
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IT 2.14/167 toleranta 2.15/170 rz, s tabel4.5/217 Rz, s = pt strunjire si rect 4.9/220 ----------- E1.33/74 //doar pt dtrunj. de degrosare pt restul se calc pe baza unui coef de corectie k=0.06 si pe baza unei erori indexateEind=50um E3=k*E2+Eind=0.06*80+50 E4=k-E3+Eind ------- ᵖsf=dc*l l=lung totala arb dc=curbare specifica //tab 46/218 pt strunj dedegrosare: ᵖ2=k2*ᵖsf= Prelucrarea IT T [um] Rz [um] S [um] ᵖ [um] Ε [um] 2Apminc [um] 2APnomc [um] Dmax [mm] Dnom [mm] Dmin [mm] 1 Semifabricat 16 1600 320 400 0 - - 2 Strunjire de degrosare 12 250 63 60 180 3 Dtrunjire de definisare 10 100 32 30 4 Rectif 8 39 10 20 0 45 45 45-(Tol-)
description
tehnologia arborelui
Transcript of Prelucrarea arborelui
PrelucrareaITT[um]Rz[um]S[um][um][um]2Apminc[um]2APnomc[um]Dmax[mm]Dnom[mm]Dmin[mm]
1Semifabricat1616003204000--
2Strunjire de degrosare122506360180
3Dtrunjire de definisare101003230
4Rectif 83910200454545-(Tol-)
IT 2.14/167toleranta 2.15/170rz, s tabel4.5/217Rz, s = pt strunjire si rect 4.9/220-----------E1.33/74 //doar pt dtrunj. de degrosare pt restul se calc pe baza unui coef de corectie k=0.06 si pe baza unei erori indexateEind=50um E3=k*E2+Eind=0.06*80+50 E4=k-E3+Eind -------sf=dc*l l=lung totala arbdc=curbare specifica //tab 46/218 pt strunj dedegrosare:2=k2*sf=3=k3*sf --------adaosul de prelucrare2Apminc=2(RZP+Sp)+2(p^2+Ec^2)-------nomDmaxp= dmaxc+2Apnomc=Dnom p=dmaxp(rotunjit)Dminp=dmax(rot)-Tp=> tab 4.1/214PrelucrareaITTRzS2Apminc2APnomcDmaxDnomDmin
[um][um][um][um][um][um][um][mm][mm][mm]
1Semifabricat161600320400340.60--49.76907675048.4
2Strunjire de degrosare12250636020.4361802210.476113810.47645.95860064645.75
3Strunjire de finisare1010032301.021860.8374.285153624.285245.33431554645.9
4Rectif8391020053.648231.31546331.315545.0034544.999
