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7/22/2019 Pattern Casting
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QN]]ETI @N]ETKNCW NIM NCCHRNIGEW JHT
QN]]ETIW
7/22/2019 Pattern Casting
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KI]THMUG]KHI
GNW]KIB?
Jhuimry hj gnstkib ks tfe prhgess hj prhmugkib
gh`phieits hj meskrem sfnpes dy phurkib tfe `hctei
`etnc kith n prepnrem `hucm nim tfei ncchwkib tfe`etnc/ncchw th ghhc nim shckmkjy. ]fe shckmkjkem pkege hj
`etnc/ncchy ks lihwi ns gnstkib.@HUCM ?N `hucm ks n ghitnkier fnvkib n gnvkty hj tfe sfnpe thde
gnst.GHTE?N Ghre ks n dhmy wfkgf ks e`pchyem th prhmuge n gnvkty ki tfe
gnstkib.
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KI]THMTG]KHI ]H QN]]ETI
>.N pntteri ks n `hcm jhr`kib thhc
4.N pntteri ks n `hmec hr tfe repckgn hj tfe hdoegt th dk gnst.
7.Exgept jhr tfe vnrkhus ncchwniges n pntteri exngtcy rese`dces tfe
gnstkib th de `nme.
=.N pntteri ks requkrem evei kj hie hdoegt fns th de gnst.
MKJJETIGE DE]REEI QN]]ETI NIM GNW]KIB?
]fe `nki mkjjereige detweei n pntteri nim tfe gnstkib ks ns rebnrms
tfekr mk`eiskhis. N pntteri ks sckbftcy cnrber ki skze ns gh`pnrem th tfe
gnstkib,degnuse n pntteri,
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QN]]ETI @N]ETKNCW
]fe jngthrs th de ghiskmerem ki secegtkib prhper pntteri `nterkncs?
>. ]fe iu`der hj gnstkibs th de prhmugem.
4. ]fe meskrem mk`eiskhinc nggurngy nim surjnge jkiksf .
7. @etfhm hj hcmkib=. Wfnpe, gh`pcexkty nim skze hj tfe gnstkib.
5. ]ype hj hcmkib nterkncs
:. ]fe prhdndkckty hj gfnibkib tfe gnstkib.
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@nterkncs Usem jhr `nlkib pntterisMkjjereit types hj `nterkncs tfnt nre usem jhr `nlkib pntteris nre
`eitkhiem dechw.
>. Rhhm4. @etnc
7. Qcnstkg
=. Rnx
RHHM?]fe `hst gh``hi `nterkncs jhr `nlkib pntteris jhr snimgnstkib ks tfe whhm.
Nmvnitnbes ?
>. Ensy nvnkcndkckty
4. Ckbft ki wekbft
7. Ensy th `ngfkie nim th sfnpe th mkjjereit ghijkburntkhis.
=. Rhhm pntteris gni de preservem jhr qukte chib tk`es
5. Rhhmei pntteris gni de repnkrem enskcy
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Ck`ktntkhis?
>. Rhhmei pntteris nre susgeptkdce th sfrkilnbe nim swkcckib.
4. ]fey ndshrd `hksture, ghisequeitcy bet wnrpem nim
gfnibe sfnpe nim skze.
7.]fey gniiht wktfstnim rhubf fnimckib.
=.]fey nre wenl ns gh`pnrem tfe `etnc pntteris.Nppckgntkhis?
Rhhmei pntteris nre usem wfere tfe iu`der hj gnstkibs th
de prhmugem ks s`ncc nim tfe pntteri skze ks cnrbe.
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Mkjjereit types hj whhms
whhm th de usem jhr `nlkib pntteris sfhucm de jree jrh` lihtsnim htfer gh``hi mejegts.
]fe jhcchwkib whhm `ny de usem jhr `nlkib pntteris?Rfkte Qkie
@nfhbniy
]enl
Mehmnr etg@E]NCW?
Nmvnitnbes hj `etnc pntteris?
>. Uickle whhmei pntteris, tfey mh iht ndshrd `hksture.
4. ]fey phsses ckje `ugf chiber tfni whhmei pntteris.7. ]fey gni wktfstnim rhubf fnimckib.
=. ]fey mh iht wnrp.
5. Kt ks ensy th hdtnki s`hhtf surjnge jkiksf.
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QCNW]KGW
Qcnstkg pntteri mhes iht stkgl wktf `hucm `nterknc nim gni
de enskcy tnlei hut wktfhut sphkckib tfe `hucm gnvkty.
Hie hj tfe dest pcnstkgs usem jhr `nlkib pntteris ks Ephxyreski.
Nmvnitnbes?
>. Murndce.
4. Qrhvkmes n s`hhtf surjnge
7. @hksture reskstnit
=. N pcnstkg pntteri mhes iht kivhcve niy nppregkndce gfnibe kikts skze hj sfnpe.
5. Ckbft wekbft.:. Bhhm streibtf.
2. Renr nim ghrrhskhi reskstnit.
6. Qrhvkmes bhhm surjnge jkiksf.
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Ck`ktntkhis?
>.Qcnstkg pntteris nre jrnbkce
4.Qcnstkg pntteris `ny iht whrl wecc wfei sudoegt th ghimktkhis
hj severe sfhgls.
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RNV?
Nmvnitnbes?
>. Rnx pntteris prhvkme very bhhm surjnge jkiksf.
4. ]fey k`pnrt fkbf nggurngy th tfe gnstkibs.7. Njter dekib `hcmem tfe wnx pntteri ks iht tnlei hut hj tfe
`hucm ckle htfer pntteris rntfer tfe `hucm ks kivertem nim
fentem, tfe `hctei wnx gh`es hut .]fus tfere ks ih gfnige
hj tfe `hucm gnvkty bettkib mn`nbem wfkie re`hvkib tfe
pntteri.
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QN]]ETI NCCHRNIGEW
N pntteri ks ncwnys cnrber ki skze ns gh`pnrem th tfe jkinc
gnstkib,degnuse kt gnrrkes gertnki ncchwniges mue th
`etnccurbkgnc nim `egfnikgnc renshis.
]fe vnrkhus pntteri ncchwniges nre mksgussem dechw?
>. Wfrkilnbe ncchwnige.
4. @ngfkie ncchwnige.
7. Mrnjt ncchwnige.
=. Wfnle ncchwnige.
WFTKILNBE NCCHRNIGE?Nc`hst ncc gnst `etncs sfrkil hr ghitrngt vhcu`etrkgnccy,njter
shckmkjkgntkhi nim tferejhre tfe pntteri th hdtnki n pnrtkgucnr
skzem gnstkib ks `nme hverskze dy ni n`huit equnc th tfnt hj
sfrkilnbe hr ghitrngtkhi.
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4. Mkjjereit `etncs sfrkil nt mkjjereit rntes degnuse sfrkilnbe ks
tfe prhperty hj tfe gnst `etnc .
7. Wfrkilnbe ncchwnige jhr vnrkhus gnst `etncs ks ns jhcchws?Brey gnst krhi ------- :.;5 th >1.=``/`t
Rfkte gnst krhi ------ 41.6
@nccendce gnst krhi ------- >1.=
Wteec ---------- 41.6
Ncu`kiku` ------- >2.1
Drnss ----------- >5.7
Drhize ---------- >1.= th 41.6
_kig ----------- 4=.1
=. Gnst krhi phurem nt fkbfer te`perntures wkcc sfrkil `hretfni tfnt phurem nt chw te`pernture.
5. Rhhm pntteris usem th `nle `etncckg pntteris nre bkvei
mhudce ncchwnige.
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@NGFKIKIB NCCHRNIGE?
N gnstkib ks bkvei ni ncchwnige jhr `ngfkikib,degnuse>.Gnstkibs bet hxkmkzem ki tfe `hucm nim murkib fent trent`eit
tfe sgnces tfus jhr`em ieem th de re`hvem.
4.Kt ks kiteimem th re`hve surjnge rhubfiess nim htfer
k`perjegtkhis jrh` tfe gnstkibs.7.Kt ks requkrem th ngfkeve exngt gnstkib mk`eiskhis.
Fhw `ugf @ngfkikib ncchwnige sfhucm de prhvkmem?
>. Inture hj `etnc
4.Wkze nim sfnpe hj tfe gnstkib
7.]fe type hj `ngfkikib hperntkhi
=.@hcmkib prhgess e`pchyem
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@ngfkikib ncchwniges jhr vnrkhus `etncs nre ns jhcchws?
Gnst krhi
`em gnstkibs ------- 7``
Cnrbe gnstkibs ------ >1``
Gnst steec
`em gnstkibs -------- =.5``
Cnrbe gnstkibs -------up th >4``
Ihi jerrhus
`em gnstkibs -------- >.4``
Cnrbe gnstkibs ------ 5``MTNJ] NCCHRNIGE?
Mrnjt ncchwnige ks bkvei sh tfnt tfe pntteri gni de enskcy re`hvem
jrh` `hcmkib wktfhut mn`nbkib tfe `hucm gnvkty.
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]fe n`huit hj tnper mepeims uphi?>.Wfnpe nim skze hj tfe pntteri
4.@hcmkib etfhm
7.@hucm nterkncs
=.Mrnjt ncchwnige hi kiterinc nim exterinc surjnges.WFNLE NCCHRNIGE?
Qntteris ks sfnlei hr rnppem dy strklkib tfe sn`e wktf n whhmei pkege
jrh` skme th skme.
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]FNIL [HU