7/22/2019 Symmetry (GD&T)

1/14

:

SVNNKQUV

Qrjflflg Ey

@fsior Eijtfj

7/22/2019 Symmetry (GD&T)

2/14

SVNNKQUV

5

AKHFLFQFOL

Synnktry fs j colaftfol fl wifci j hkjturk or hkjturks jrksynnktrfcjmmy afsposka jeout j ckltkrmflk or ckltkr pmjlk oh jlotikrhkjturk, Qik ckltkrmflk or Rmjlk oh tik skcola hkjturk fs usujmmyspkcfhfka js j ajtun,

J synnktry tomkrjlck spkcfhfks tik wfati oh j tomkrjlck zolk, Qifswfati fs tik jrkj ektwkkl two pjrjmmkm mflks or tik spjck ektwkkl twopjrjmmkm pmjlks kqujmmy afsposka jeout tik ajtun jxfs or nkafjl pmjlk,

Synnktry fs tikrkhork j spkcfjm cjsk oh posftfol, Qik javjltjgk ohusflg tik synnktry syneom rjtikr tijl tik posftfol syneom fs tijt ftflafcjtks tijt tik truk posftfol fs synnktrfcjm jla ohtkl kmfnfljtks tiklkka hor ejsfc afnklsfols to corrkmjtk tik posftfol oh hkjturks,

7/22/2019 Symmetry (GD&T)

3/14

3

SVNEOM

Qik gkonktrfc cijrjctkrfstfc syneom hor synnktrycolsfsts oh tirkk iorfzoltjm mflks- js siowl fl Hfg, Qik afnklsfolsrkhkr to pkrckltjgks oh tik hkjturk coltrom syneom hrjnk ikfgit,

SVNNKQUV

82 +

7/22/2019 Symmetry (GD&T)

4/14

1

SVNNKQUV JRRMFCJQFOLS UHS

Hfg siows j sfnpmk kxjnpmk fl wifci j smot fs fltklaka to eksynnktrfcjm wfti tik ovkrjmm wfati oh tik pjrt- wifci fl turl fsspkcfhfka js tik ajtun,

Lotk tijt ft fs lot lkckssjry to siow j truk posftfol afnklsfolhor tik smot or kqujm afnklsfols hron tik sfaks oh tik smot to tiksfaks oh tik pjrt- wifci nfgit ek akknka lkckssjry fh j posftfoljmtomkrjlck- wkrk uska,

7/22/2019 Symmetry (GD&T)

5/14

;

Qik fltkrprktjtfol- siowl fl Hfg ekmow- siows tik tomkrjlck zolkkqujmmy afsposka jeout tik ckltkrmflk or nkafjl pmjlk oh tik ajtunhkjturk,

Qikorktfcjmmy tifs ckltkrmflk or nkafjl pmjlk oh tik ajtun hkjturkfs pkrhkctmy strjfgit jla truk- ekflg ejska olmy ol tik ifgi spots oh

tik hkjturk rkstflg ol tik ajtun surhjcks,Qik ckltkrmflk oh kjci coltrommkahkjturk fs flhmuklcka ey jly krrorsoh horn or orfkltjtfol oh tiksurhjcks, Iowkvkr- tik wfati oh

tik tomkrjlck zolk rknjfls tiksjnk hor kjci pjrt- rkgjramkss ohtik jctujm sfzk oh tik hkjturk oroh tik ajtun hkjturk,

7/22/2019 Symmetry (GD&T)

6/14

8

NKJS[UFLG RUFLCFRMK

Kxjnpmk :

Olk surhjck oh tik ajtun hkjturk fs mjfa afrkctmy ol j surhjckpmjtk- js siowl fl Hfg, Nkjsurknklts jrk njak hron tik ajtunsurhjck to olk sfak oh tik smot,

Qik ifgikst jla mowkst rkjaflgs jrk lotka,Qik pjrt fs tikl rkvomvka :92 - so tijt tik otikr surhjck oh tik

ajtun hkjturk rksts ol tik surhjck pmjtk jla nkjsurknklts jrknjak to tik otikr surhjck oh tik smot,

Qik afhhkrklck ektwkkl tik ifgikst jla mowkst oh jmm oh tiknkjsurknklts colstftutks tik synnktry krror- wifci nust lotkxckka tik spkcfhfka tomkrjlck,

7/22/2019 Symmetry (GD&T)

7/14

7

Qik Hfg jeovk siows wfti two smots- olk oh wifci fs aksfgljtka js jajtun hkjturk, Hor nkjsurflg purposk tik pjrt fs supportka ol olk sfak ohtik ajtun smot wifmk tik nkjsurknklts jrk njak to tik otikr smot,

Kxjnpmk . 5

7/22/2019 Symmetry (GD&T)

8/14

9

Hfg,: siows j pjrt fl wifci j iomk fs rkqufrka to ek synnktrfcjm wfti tiksfaks oh tik pjrt js wkmm js pkrpklafcumjr to tik hjck oh tik pjrt,

NKJS[UFLG RUFLCFRMK OH SVNNKQUV

Kxjnpmk . 3

:

5

7/22/2019 Symmetry (GD&T)

9/14

6

Kxjnpmk 3 colt, Nkjsurknklt cjl ek njak- ey hfttflg tik iomk wfti j cmosk hfttflgnjlarkm jla supportflg tik pjrt jgjflst jl jlgmk pmjtk- rkprkskltflg ajtun J- js siowl

fl Hfg,:, Qik pjrt nust jmso touci tik surhjck pmjtk jmolg fts mklgti, Qik ikfgit fs tiklnkjsurka hron tik surhjck pmjtk ovkr tik njlarkm,Ukjaflgs jrk tj`kl jt two poflts ol tik njlarkm- skpjrjtka ey j afstjlck W-

kqujm to tik wfati oh tik pjrt- js siowl fl Hfg,5, Ikfgit nkjsurknklts hor tik iomk jrktikl cjmcumjtka hron tik hornumjk siowl ekmow- pjyflg pjrtfcumjr jttkltfol to tiknjtiknjtfcjm sfgls fl kjci cjsk,

Hor kxjnpmk- fh K fs mjrgkr tijl H- )H.K& ekconks j lkgjtfvk qujltfty- jla tikskcola hornumj ekconks A>C )K.H&, Qik pjrt fs tikl rkvomvka :92 jla nkjsurknkltsrkpkjtka wfti surhjck rkstflg ol tik surhjck pmjtk, Qik njxfnun afhhkrklck ektwkkljly oh tik hour nkjsurknklts rkprksklts tik synnktry krror,

NKJS[UFLG RUFLCFRMK OH SVNNKQUV

:

5

7/22/2019 Symmetry (GD&T)

10/14

:2

Synnktry cjl jmso ek jppmfka to pjrts wfti cfrcumjr ajtuns js siowl fl tikHfg jeovk,

Hor nkjsurflg purposk tik snjmm iomk fs hfttka wfti j suftjemk njlarkm,

Nkjsurknklts jrk tikl njak ektwkkl tik njlarkm jla tik sfaks oh tikajtun iomk- suci js ey flskrtflg gjgk pfls js siowl fl Hfg, Qik afhhkrklckektwkkl tik sfzks E(C gfvks tik synnktrfc krror,

Qifs nkjsurknklt sijmm ek prkcfsk olmy fh tik ajtun iomk ijs lo roulalksskrrors- wifci nfgit flcrkjsk jla akcrkjsk tik jppjrklt synnktry krror

Kxjnpmk . 1

7/22/2019 Symmetry (GD&T)

11/14

::

JRRMFCJQFOL OL JL NNC EJSFS

Wikl kvkr possfemk synnktry siouma ek spkcfhfka ol jl NNCejsfs,

Suci spkcfhfcjtfol somvks nost oh tik nkjsurknklt proemknsey pkrnfttflg usk oh suftjemk hulctfoljm GO gjgks, Sonkkxjnpmks oh pjrts tomkrjlcka ol tifs ejsfs- wfti suftjemk gjgflgprflcfpmks- jrk siowl ekmow,

Kxjnpmk :

8,2

7/22/2019 Symmetry (GD&T)

12/14

7/22/2019 Symmetry (GD&T)

13/14

:3

Kxjnpmk 38,2 2,2;

Kxjnpmk 1

7/22/2019 Symmetry (GD&T)

14/14

:1Kxjnpmk 8

Kxjnpmk ;