geometrical tolerancing (gd&t)
TRANSCRIPT
-
8/13/2019 Geometrical Tolerancing (GD&T)
1/12
JGNIG[SHE@D[NDGS@LEHLJ
0
-
8/13/2019 Geometrical Tolerancing (GD&T)
2/12
3
KGFHLH[HNL
@ jgnigtrhe`d tndgr`leg hs tag i`xhiuipgrihsshcdg v`rh`thnl nf Fnri ,Nrhglt`thnl, nr
Dne`thnl nf ` fg`turg frni ta`t hlkhe`tgk nrspgehfhgk nf tag kr`whlj.
[ag fg`turg wnudk cg pgrihttgk tn a`vg `ly
v`rh`thnl nf fnri nr t`bg up `ly pnshthnl whta hl `spgehfhgk jgnigtrhe`d tndgr`leg znlg.
JGNIG[SHE@D [NDGS@LEHLJ
-
8/13/2019 Geometrical Tolerancing (GD&T)
3/12
5
]NHL[U, DHLGU @LK UWSF@EGU
Hl tag prnkuethnl `lk ig`surgiglt nf gljhlggrhlj p`rts instdywg kg`d whta fd`t, eydhlkrhe`d, enlhe`d, spagrhe d, nr hrrgjud`r
sa`pg nr enltnurgk surf`egs.Gkjgs nf p`rts nr `xgs nf eydhlkgrs `rg sanwl cy dhlgs.
Hltgrsgethnl nf dhlgs `rg sanwl cy pnhlts.
Ig`surgiglt hs i`kg `t spgehfhe pnhlts tn gv`du`tg ` dhlg `t
v`rhnus pnhlts `dnlj hts dgljta.
JGNIG[SHE@D [NDGS@LEHLJ
-
8/13/2019 Geometrical Tolerancing (GD&T)
4/12
;
]NHL[U, DHLGU @LK UWSF@EGUenltk.
Jgnigtrhe`d tndgr`legs `rg eahgfdy enlegrlgk whta pnhlts & dhlgs
wahdg surf`egs `rg enipnsgk nf sgrhgs nf dhlg gdgiglts.]nhlts a`vg pnshthnl cut ln shzg `lk tagrgfnrg pnshthnl hs tagnldy ea`r`etgrhsthe ta`t rgquhrgs enltrnd.
Dhlgs `lk surf`egs `rg enltrnddgk fnr fnri, nrhglt`thnl `lkdne`thnl.
JGNIG[SHE@D [NDGS@LEHLJ
-
8/13/2019 Geometrical Tolerancing (GD&T)
5/12
Jgnigtrhe`d [ndgr`lehlj
JGNIG[SHE@D EA@S@E[GSHU[HEUFnri nf ` dhlg Utr`hjatlgss, rnulklgss, `lk
prnfhdg
Fnri nf ` surf`eg Fd`tlgss, eydhlkrhehty `lk prnfhdg
Nrhglt`thnl @ljud`rhty, p`r`ddgdhsi `lkpgrpglkheud`rhty
Dne`thnl ]nshthnl, enlegltrhehty `lksyiigtry
Sul nut [ahs hs ` spgeh`d enipnshtgea`r`etgrhsthe, wahea whdd cggxpd`hlgk d`tgr
7
-
8/13/2019 Geometrical Tolerancing (GD&T)
6/12
6
FG@[WSG ENL[SND UXICNDU
Fg`turg hs ` spgehfhe ea`r`etgrhsthe pnrthnl nf ` p`rt.
]nhlt, dhlg, surf`eg, andg, sdnt, sergw targ`k nr prnfhdg.
[ag fr`ig aghjat tn cg twheg tag aghjat nf tag ea`r`etgr
usgk fnr khiglshnlhlj, tndgr`lehlj `lk lntgs nl tag kr`whlj.
DGLJ[A @U SGPWHSGK
-
8/13/2019 Geometrical Tolerancing (GD&T)
7/12
:
]NUH[HNL NF @SSNZ AG@K
Nl tag nutdhlg nf tag fg`turg
Nl `l gxtglshnl nf tag nut dhlg
Nl `l gxtglshnl (prnogethnl) dhlg
frni tag fg`turg, hl dhlg whta tag
shzg khiglshnl.
-
8/13/2019 Geometrical Tolerancing (GD&T)
8/12
1
]NUH[HNL NF @SSNZ AG@K
Jgnigtrhe`d tndgr`leg whtargfgrgleg tn egltgr dhlg.
[ag fg`turg enltrnd syicnd hs
sanwl hl `ssneh`thnl whta tag shzg
khiglshnl.
-
8/13/2019 Geometrical Tolerancing (GD&T)
9/12
8
@]]DHE@[HNL [N UWSF@EGU
[ag dg`kgr `lk `rrnwag`k sanudk cg frni tag fg`turg enltrnd syicnd.
Wsu`ddy pgrpglkheud`r tn tag dhlg nr surf`eg.
Nr `t `l `ljdg.
-
8/13/2019 Geometrical Tolerancing (GD&T)
10/12
0=
[wn nr inrg fg`turg enltrnd syicnds, wahea `ppdy tn tag s`ig fg`turg,
`rg kr`wl tnjgtagr whta ` shljdg dg`kgr `lk `rrnwag`k
-
8/13/2019 Geometrical Tolerancing (GD&T)
11/12
00
@]]DHE@[HNL [N EGL[GS DHLGU
Wsgk fnr iudthpdg kh`igtgr p`rts whta ` eniinl `xhs.
-
8/13/2019 Geometrical Tolerancing (GD&T)
12/12
03
ENL[SND NF EGL[GS DHLG NF @ ]NS[HNL NF @ ]@S[
@]]DHE@[HNL [N EGL[GS DHLGU