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UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE DEPARTAMENTO DE ENGENHARIA MECÂNICA CURSO DE PROCESSOS DE FABRICAÇÃO MECÂNICA II PROFESSOR: TOMÁS BARROS VASCONCELOS  ALY SSON NASCIMENTO DE L UCENA EDSON CÉSAR CAV ALCANTE SILVA JÚNIOR ELIAS PEREIRA DE LIMA JÚNIOR MARCOS ANTONIO CAVALCANTE DE SOUZA METALURGIA DO PÓ NATAL RN

Metalurgia Do Pó Final

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UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTEDEPARTAMENTO DE ENGENHARIA MECÂNICACURSO DE PROCESSOS DE FABRICAÇÃO MECÂNICA II

PROFESSOR: TOMÁS BARROS VASCONCELOS

 ALYSSON NASCIMENTO DE LUCENAEDSON CÉSAR CAVALCANTE SILVA JÚNIOR

ELIAS PEREIRA DE LIMA JÚNIORMARCOS ANTONIO CAVALCANTE DE SOUZA

METALURGIA DO PÓ

NATALRN

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!"#$1 – Introdução

R%&'()*+(%,-% + (%-+.'/0)+ *1 23 41,&)&-% ,+ 2/%,&+0%( *% 23& %(

(1.*%& (%-5.)41& % + 41,&1.)*+671 *+ 2%6+ 21/ +8'%4)(%,-1 41,-/1.+*19 -%,*141(1 /%&'.-+*1 '( 2/1*'-1 41( 1/(+ *%&%;+*+9 <1( +4+<+(%,-1 &'2%/)4)+.9

41(21&)671 8'=()4+ % 2/12/)%*+*%& (%4>,)4+& 41,-/1.+*+&?P+/+ 1<-%,671 *+ 2%6+ ),+. @ 2/%4)&1 &%0')/ -/& %-+2+& ',*+(%,-+)&

2+/+ 1 2/14%&&1 *+ (%-+.'/0)+ *1 23: + 1<-%,671 *1& 23&9 + 41(2+4-+671 % +

&),-%/)+671? N+ 1<-%,671 *1& 23& 1 -+(+,1 *1& 0/71&9 + 1/(+ % +

*)&-/)<')671 -%( /%.%1 *)/%-1 ,+ 2%6+ ),+.? N+ 41(2+4-+671 1 23 @ 2/%,&+*1

%( '(+ (+-/)9 ,%&&% 2/14%&&1 +41,-%4% '(+ %&2@4)% *% &1.*+ /)+ +

-%(2%/+-'/+ +(<)%,-% 8'% *5 1/)0%( +1 41(2+4-+*1 %/*% 2%6+

%-/%(+(%,-% /50).? A &),-%/)+671 @ 1 2/14%&&1 *% +8'%4)(%,-1 &%( 4%0+/ 

+1 21,-1 *% '&71 141//%,*1 + .)0+671 8'=()4+ % (%-+./0)4+ *+& 2+/-=4'.+& *1

239 ,1/(+.(%,-% @ %)-+ %( 1/,1& 41,-=,'1& &%0'),*1 -/& %-+2+&9 2/@

+8'%4)(%,-19 (+,'-%,671 *+ -%(2%/+-'/+ % /%&/)+(%,-1? A23& + &),-%/)+671 *%2%,*%,*1 *+ +2.)4+671 + 2%6+ %&-5 2/1,-+ 2+/+ 1

'&19 (+& %( +.0',& 4+&1& @ 2/%4)&1 12%/+6%& 41(2.%(%,-+/%& -)21

/%41(2+4-+6719 -/+-+(%,-1& -@/()41&9 '&),+0%(9 2+/+ 2%8'%,1& +;'&-%&? A& 2%6+& +</)4+*+& 2%.1 2/14%&&1 *+ (%-+.'/0)+ *1 23 21&&'%( '(

+&-1 4+(21 *% +2.)4+6%&9 2%6+& 2+/+ 41(21,%,-%& +'-1(1-)1&9 </+8'%-&

2+/+ +2+/%.1& *%,-5/)1&9 %//+(%,-+& *% 41/-% % %.@-/)4+& %,-/% 1'-/1&? O

2/14%&&1 *% +</)4+671 @ 41,&)*%/+*1 *% <+)1 4'&-1 2+/+ 2/1*'671 %( .+/0+

%&4+.+9 +.@( *% 2/121/4)1,+/ <+)1 )(2+4-1 +(<)%,-+. 8'+,*1 41(2+/+*+ +

-%4,1.10)+& 41,41//%,-%&9 21)& 21&&)<).)-+ '( +.-1 +2/1%)-+(%,-1 *+ (+-@/)+

2/)(+ % (%,1/ 41,&'(1 *% %,%/0)+ *% -/+,&1/(+671?

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2 – Histórico

C%/4+ *% K""" +?C 1 1(%( ;5 2/1*')+ &'+& +/(+&9 %//+(%,-+& %

.+,6+& + 2+/-)/ *% +0.1(%/+*1& *% %//19 %(<1/+ &1(%,-% *1 &@4'.1 I 1)

1,*% 41(%61' 1 *%&%,1.)(%,-1 *+ (%-+.'/0)+ *1 23 (1*%/,+?E( #! 41( + 2/1*'671 *% 2%6+& *% 2.+-),+ (+.%5%. /%2/%&%,-1' '(

(+/41 ,+ )&-3/)+ *+ (%-+.'/0)+ *1 239 21)& +-@ %,-71 2%.+ /+71 *1 +.-1 21,-1

*% '&71 4%/4+ *% #?QC + 2.+-),+ (+.%5%. ,71 21*)+ &%/ 2/14%&&+*+ 21/ 

',*)671 ,1/(+.?P%6+& *% T',0&-,)1 % M1.)<*,)1 21/ &),-%/)+671 1/+( 41,&%0')*+&

,1 &@4'.1 % -)%/+( '(+ %2+,&71 ,+ 2/1*'671 *'/+,-% + &%0',*+ 0'%//+

(',*)+. 41( 1<;%-)1 *% +-%,*%/ + *%(+,*+ *+ ),*&-/)+ +'-1(1<).=&-)4+?

N1& *)+& *% 1;% &71 ),(%/+& +& +2.)4+6%& ),*'&-/)+)& *% 2%6+&2/1*')*+& 2%.+ &),-%/)+6719 41(2+/+*+ + -%4,1.10)+& 41,%,4)1,+)& &'+

41(2%-)-))*+*% @ ),&'2%/5%. -+,-1 %( /+%& -%4,1.30)4+& 41(1 %41,()4+&?

3 – Metalurgia do Pó

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 A (%-+.'/0)+ *1 23 41,&)&-% %( '(+ -@4,)4+ *% +</)4+671 *% 2/1*'-1&

(%-5.)41& %//1&1& 1' ,71 %//1&1& 1<-)*1& +-/+@& *% 41,1/(+671 *% 23&

(%-5.)41& &%0')*1 *% -/+-+(%,-1 -@/()41 41,-/1.+*1 *% &),-%/)+671 +<+)1 *1

21,-1 *% '&719 41,%/),*1 + 2%6+ 2/1*')*+ 2/12/)%*+*%& =&)4+& % (%4>,)4+&

*% +41/*1 41( +& ,1/(+& 2/@%&-+<%.%4)*+&?

3.1 – Etapas do Processo de Fabricação

3.1.1 – Produção e Obtenção do Pó

 A %&41.+ *1 2/14%&&1 2+/+ 1<-%,671 *1 23 (%-5.)41 *%2%,*% *1

41,;',-1 *% 2/12/)%*+*%& % *+& 4+/+4-%/=&-)4+& ),+)& % +2.)4+671 *+ 2%6+? A

',)1/()*+*% *+ (+-@/)+ 2/)(+ %&-5 .)0+*+ *)/%-+(%,-% + 8'+.)*+*%9 21/ )&&1 @

),*)&2%,&5%. '( 41,-/1.% /)01/1&1 % 1 41,%4)(%,-1 *% &'+& 4+/+4-%/=&-)4+&? A 2/1*'671 *1& 23&(%-5.)41& -+(<@( ),.'%,4)+( ,1& 4'&-1& *%

+</)4+6719 ,+ 41,&1.)*+671 % ,+ +2.)4+671 *1& 2/1*'-1& % &%'& 2/14%&&1&

21*%( &%/ *))*)*1& %( (%4>,)41& % 8'=()41&?

3.1.1.1 – Produção Mecnica

 A 2/1*'671 (%4>,)4+ @ ),*)4+*+ 2+/+ (+-%/)+)& /50%)& 1' /+0).)+*1&

21/ +.0'( 2/14%&&1 +,-%/)1/9 41,&)&-% %( /+0(%,-+/ 1 (+-%/)+. 21/ (%)1 *%

(+/-%.1& 1' (1),1&9 +-@ +-),0)/ 1 -+(+,1 *%&%;+*1 *% 2+/-=4'.+&? U(+ *+&

(58'),+& (+)& '-).)+*+& @ 1 (1),1 *% <1.+& )0'/+ "#?

F)0'/+ "# M1),1 *% <1.+&

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%.%+*+& % *%&4%( 2+/+ (1%/ 1 (+-%/)+.? D%,1(),+*+ *% (1+0%( *% +.-+%,%/0)+9 41,&)&-% %( &'4%&&)1& 2/14%&&1& *% *%1/(+6719 &1.*+0%( % /+-'/+?

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E&-% 2/14%&&1 141//% -1*+ % 8'% '( *%-%/(),+*1 ,(%/1 *% 2+/-=4'.+& *% 23

&% &)-'+ %,-/% *'+& <1.+& *'/+,-% + 41.)&71 )0'/+ "!?

F)0'/+ "! D%&-+8'% *+ 41.)&71 %,-/% +& <1.+&?

3.1.1.2 – !to"i#ação de Metais $%&uidos

N+ +-1()+671 1 (%-+. .')*1 @ ++*1 21/ '( 1/)=4)19 ,%&&% (1(%,-1

1/(+&% '( ).%-% .=8')*1 8'% @ <1(<+/*%+*1 21/ ;+-1& *% +/9 05& 1' 50'+

)0'/+ "W? A 2/%&&71 *1 .')*19 + %&2%&&'/+ *1 ).%-%9 + 41,)0'/+671 *1 <14+.

*% +-1()+671 *%-%/(),+( 1 -+(+,1 % 1/(+ *+& 2+/-=4'.+& *1 (+-%/)+.2'.%/)+*1?

F)0'/+ "$ A-1()+671 %/-)4+. % 1/)1,-+.?

3.1.1.3 – Processo Eletrol%tico 'Eletrólise(

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U-).)+*1 2/),4)2+.(%,-% 2+/+ 2/1*'671 *% 23 *% 41</%9 + %.%-/3.)&% @ '(

2/14%&&1 =&)418'=()41 1,*% 1 (%-+. ,+ 1/(+ &3.)*+ @ 41.14+*1 %( '(

-+,8'% % *)&&1.)*1 ,'(+ &1.'671 %.%-/1.=-)4+9 ,+ 8'+. 2+&&+ '(+ 41//%,-%

%.@-/)4+ )0'/+ "? A23& %&&% 2/14%&&1 @ /%41.)*+ *1 -+,8'% '(+ (+&&+ *% 23 %( 1/(+

*% .+(+9 %.+ @ ,%'-/+.)+*+9 &%4+*+9 /%*')*+ % 4.+&&))4+*+ 21/ 2%,%)/+(%,-1?

P+/+ 1<-%,671 % 0/71& (%,1/%& 2/14%&&1& (%4>,)41& &71 %(2/%0+*1&

41(2.%(%,-+,*1 1 2/14%&&1?U(+ *+& 2/),4)2+)& 4+/+4-%/=&-)4+& *1& 23&1<-)*1& 41( 1 2/14%&&1 *+

%.%-/3.)&% @ 1 +.-1 0/+' *% 2'/%+9

F)0'/+ " P/14%&&1 *% %.%-/3.)&%

3.1.2 – )o"pactação dos pós

U(+ 8'+,-)*+*% 2/@*%-%/(),+*+ *% 23 @ 41.14+*+ ,+ 4+)*+*% *% '(+

(+-/) (1,-+*+ %( '(+ 2/%,&+ *% 41(2/%&&719 8'% 21*% &%/ (%4>,)4+ 1'

)*/5'.)4+? A 41(2+4-+671 141//% 21/ *%&.14+(%,-1& &)('.->,%1& *1& 2',6%&

&'2%/)1/ % ),%/)1/9 X -%(2%/+-'/+ +(<)%,-%9 + )0'/+ "K (1&-/+ + &%8',4)+

*%&-+ 12%/+671?

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F)0'/+ "K S%8',4)+ *% 41(2+4-+671

N1& 2/)(%)/1& (1)(%,-1& *1 2',671 &'2%/)1/ % *1 2',671 ),%/)1/9 +

41(2+4-+671 4+'&+ +2%,+& +*%,&+(%,-1 *1 239 &%( *%1/(+671 *+&

2+/-=4'.+& % &%( 2/1*')/ +*%&71 %,-/% %.+&? S% 1 2/14%&&1 1/ ),-%//1(2)*19 1

23 ,71 (+,-%/5 '(+ 1/(+ 41( 41,-1/,1& *%),)*1&?

O +'(%,-1 *+ 2/%&&71 2/114+/5 *%1/(+671 2.5&-)4+ *+& 2+/-=4'.+&? A&

2+/-%& (+)& ),+& *% 4+*+ 2+/-=4'.+ &1/%/71 *%1/(+671 1' 8'%</+ 8'%

+1/%4% 1 %,-/%.+6+(%,-1 *1& 0/71&9 2/1*'),*1 '(+ %&2@4)% *% &1.*+ /)+? A& 2/%&&%& *% 41(2+4-+671 %)0)*+& ,+ (%-+.'/0)+ *1 23 +/)+( 41(

1& 5/)1& (+-%/)+)& + &%/%( 2/1*')*1&9 41( 4+/+4-%/=&-)4+& *1& 23&(%-5.)41&9

41( + 8'+,-)*+*% % 8'+.)*+*% *1 .'</))4+,-% +*)4)1,+*1 ,+ ()&-'/+ *1& 23&? A&

(+-/)%& *% 41(2+4-+671 &71 41,%44)1,+*+& 41( +61 ),*%1/(5%. *% +.-1

4+/<1,1 % +.-1 4/1(19 -%(2%/+*1 % /%%,)*1 /%8'%,-%(%,-% &71 /%%&-)*+& *%

4/1(1 *'/1 1' &71 +</)4+*+& 41( ,4.%1 *% (%-+. *'/1? D%)*1 +1 &%'

%.%+*1 4'&-1 X *'/+671 *+& (+-/)%& % *1& /%&2%4-)1& 41(21,%,-%& *%%41//%&21,*%/ + *%%,+& 1'9 &% 21&&=%.9 + 4%,-%,+& *% ().+/%& *% 2%6+&

41(2+4-+*+&? N+ )0'/+ " -%(1& 1 %%(2.1 *% '(+ (+-/) &)(2.%& *%

41(2+4-+671 *% 23&(%-5.)41& % &%'& *)%/&1& 41(21,%,-%&?

F)0'/+ " M+-/) &)(2.%& *% 23&(%-5.)41&?

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 A23& + 41(2+4-+671 + 2%6+ @ 4+(+*+ *% 41(2+4-+*1 %/*%? A

41,&)&-,4)+ *1 41(2+4-+*1 %/*% + .%(</+/ '(+ 2+614+ *% +(%,*1)(9 8'%

*%% &%/ (+,'&%+*+ 41( 4')*+*1 2+/+ ,71 8'%</+/? A *%,&)*+*% % +

/%&)&-,4)+ &71 *'+& 4+/+4-%/=&-)4+& )(21/-+,-%& ,%&-+ %-+2+9 21)& ),.'%,4)+(

+& 2/12/)%*+*%& (%4>,)4+& *+ 2%6+ ),+.?

3.1.3 – *interi#ação

E&-+ @ + %-+2+ *% 41,&1.)*+671 ),+. *+ 2%6+? A (+&&+ *% 2+/-=4'.+&9 ,+

1/(+ *% 41(2+4-+*1 %/*% 1' 41,),+*+ %( (1.*%&9 @ +8'%4)*+ +

-%(2%/+-'/+& +.-+&9 (+& +<+)1 *1 21,-1 *% '&71 *1 (%-+. <+&%9 &1<

41,*)6%& 41,-/1.+*+& *% -%(2%/+-'/+9 %.14)*+*% *% +8'%4)(%,-1 %

/%&/)+(%,-19 -%(21 *% 2%/(+,,4)+ % +-(1&%/+? A &),-%/)+671 @ %)-+9 ,1/(+.(%,-%9 %( 1/,1& 41,-=,'1&9 4+/+4-%/)+*1&

21/ -/& 1,+& *% 12%/+671: 2/%+8'%4)(%,-19 (+,'-%,671 *% -%(2%/+-'/+ %/%&/)+(%,-1? A )0'/+ " (1&-/+ + )&-+ *%&-% -)21 *% 1/,1?

F)0'/+ " F1/,1 *% &),-%/)+671?

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N%&-+ %-+2+9 141//% + .)0+671 8'=()4+ % (%-+./0)4+ *+& 2+/-=4'.+& *1

239 1 8'% /%*' 1' +-@ (%&(1 %.)(),+ + 21/1&)*+*% %)&-%,-% ,1 41(2+4-+*1

%/*%? E&-% 2+&&+ + 1/(+/ '( 41/21 41%/%,-%9 8'% +2/%&%,-+ +& 2/12/)%*+*%&-=2)4+& *1& 2/1*'-1& &),-%/)+*1&?

N+ &),-%/)+671 141//%9 ,1/(+.(%,-%9 '(+ *%1/(+671 *1 41(2+4-+*19

8'% &% 41,-/+)9 21*%,*1 4%0+/ + '(+ /%*'671 *% $" *1 &%' 1.'(% ),)4)+.

1' '(+ /%*'671 .),%+/ *% 4%/4+ *% #K? D%21)& *+ &),-%/)+671 + 2%6+ +),*+

21*% 2+&&+/ 21/ 2/14%&&1& *% /%41(2/%&&719 -/+-+(%,-1& -@/()41& %

'&),+0%(?

+, -os Produtos

O& 2/1*'-1& &),-%/)+*1& &71 (%-5.)41& %//1&1& 1' ,71 %//1&1&? O

4'&-1 <%,%=4)1 @ 41,-%(2.+*1 + ,=%. (+-%/)+. % *)(%,&)1,+.? O ,=%. (+-%/)+.

@ 1<-)*1 +-/+@& *+ 1/('.+671 *+ 41(21&)671 8'=()4+ % 41,&%8'%,-%&

2/12/)%*+*%& =&)41(%4>,)4+& ,+ (%*)+ %+-+ *+ &1.)*))4+6719 ;5 ,1 &%,-)*1

*)(%,&)1,+. @ 1<-)*1 &)&-%(+-)4+(%,-% 2%.+ 41(2+4-+671 ,+& (58'),+&

%&2%4=)4+ 0+/+,-),*1 0%1(%-/)+& % -1.%/>,4)+& +2%/-+*+& 41( +.-+&

/%2%-)<).)*+*%?O 2/14%&&1 @ %41.10)4+(%,-% 41//%-1 % %%/4% (%,1/ )(2+4-1 +1 (%)1

+(<)%,-% 8'+,*1 41(2+/+*1 +1& 2/14%&&1& 41,%,4)1,+)& *%)*1 + (%.1/ 

'-).)+671 *+ (+-@/)+2/)(+9 (%,1/ 41,&'(1 *% %,%/0)+ % '-).)+671 &%.%-)+ *%

%.%(%,-1& *% .)0+?

F)0'/+ " G/5)41 E,%/0)+M+-@/)+ P/)(+

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+.1, Ee"plos de !plicação

, Mancais auto,lubri/icantes

E&-%& (+,4+)& +%( 2+/-% *% '(+ *+& (+)& +,-)0+& +2.)4+6%&

),*'&-/)+)& *+& 2%6+& (%-5.)4+& 21/1&+& 1<-)*+& 2%.+ M%-+.'/0)+ *1 P3? A

21/1&)*+*% %)&-%,-% ,+& 2%6+& &),-%/)+*+& +-'+ 41(1 /%&%/+-3/)1 *% 3.%1

8'% )/5 1/(+/ 1 ).(% .'</))4+,-% *+ /%0)71 %)1(+,4+.9 %)-+,*1&% +&&)( 1

*%&0+&-% 2/%(+-'/1 *%&-+& &'2%/=4)%&? A& <'4+& +'-1.'</))4+,-%& &71 .+/0+(%,-% '-).)+*+& %( +2+/%.1& *+

.),+ </+,4+ -+)& 41(1 %,-).+*1/%& /%&)*%,4)+)& % +2+/%.1& '-).)+*1& 2+/+ 1

2/%2+/1 *% +.)(%,-1& -+)& 41(1 <+-%*%)/+&9 .)8')*))4+*1/%&9 2/14%&&+*1/%& %

4%,-/='0+&?

F)0'/+ #" E%(2.1& *% A2.)4+671 (+,4+)&

, 0a indstria auto"obil%stica

 A .)&-+ *% 41(21,%,-%& 8'% '-).)+( 2%6+& &),-%/)+*+& ,+ ),*&-/)+

+'-1(1<).=&-)4+ @ <%( %-%,&+: +(1/-%4%*1/%&9 <)%.+& *1 (1-1/9 4+2+& *%

(+,4+. *1 )/+</%8')(9 21.)+ &),4/1,)+*1/+ *1 41(+,*1 *% 5.'.+9 /1-1/%& *+

<1(<+ *[50'+ % *% 3.%19 ),;%671 %.%-/,)4+9 +,@)& *1 &%,&1/ *1 /%)1 ABS9

&)&-%(+& *% /%)19 2%6+& 2+/+ 4+)+& *% ('*+,6+ (+,'+. % +'-1(5-)4+9 4'<1*% 21.)+&9 (1-1/%& %.@-/)41&9 (1-1/ *% +//+,8'%9 %.+& *% )0,)6719 ).+(%,-1& *%

.>(2+*+&9 +&&%,-1& *% 5.'.+9 /%.& %.@-/)41&9 2+&-).+& *% /%)1 % *)&41& *%

%(</%+0%(?

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F)0'/+ ## E%(2.1& *% A2.)4+671 ),*&-/)+ +'-1(1<).=&-)4+

, 0a indstria de re/rigeração

E,41,-/+(1& 5/)1& 41(21,%,-%& &),-%/)+*1& ,+ ),*&-/)+ *%

/%/)0%/+671 '-).)+*1& %( 41(2/%&&1/%& %/(@-)41& -+)& 41(1 2)&-%&9 <)%.+&9

2.+4+& 5.'.+ % 41,-/+2%&1&? E&-%& 41(2/%&&1/%& &71 '-).)+*1& %( +2+/%.1&

*% +/41,*)4)1,+*19 0%.+*%)/+& % 4>(+/+& /)01/=)4+&?

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F)0'/+ #! E%(2.1& *% A2.)4+671 /%/)0%/+671

,0a indstria Eltrica

N+& %//+(%,-+& %.@-/)4+& % ,1& %8')2+(%,-1& 2+/+ ;+/*),+0%(

%,41,-/+(1& 2%6+& &),-%/)+*+& %&-/'-'/+)& *% +61 -+)& 41(1 (+,4+)&9 .+,0%&9+.++,4+& % %,0/%,+0%,&? E,41,-/+(1& -+(<@( <'4+& &),-%/)+*+& +'-1

.'</))4+,-%& *% </1,% 1' %//1 8'% &% +2/%&%,-+( 41(1 '(+ 3-)(+ +.-%/,+-)+

+1 '&1 *% /1.+(%,-1& *% %&%/+?

F)0'/+ #W E%(2.1& *% A2.)4+671 ),*&-/)+ %.@-/)4+

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. 4antagens e -es5antagens do processo

.1 4antagens

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.2 -es5antagens

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6 – )onclusão

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7 , 8ibliogra/ia

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D)&21,=%. %( :

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