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ASSIGNMENT-02

MANUFACTURING TECHNOLOGY

M.KAMSAWARTHINEY

UWU/SCT/12/0021

MANUFACTURING TECHNOLOGY

SCIENCE & TECHNOLOGY

4THYEAR 1STSEMESTER

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1. Classi! "#$ $%i%$$'i% (a"$'ials. E)*lai% "#$ +i$'$%" "!*$s , *lai% a',% s"$$ls i"#

"#$i' *',*$'"i$s a%+ a**lia"i,%s.

a.

asi "!*$s a'$

1. M$"als

2. N,%-M$"als

M$"als

M$"als a'$ *,l!'!s"alli%$ ,+i$s #i# a'$ #a3i% %($' , +i$'$%"iall! ,'i$%"$+ i%$ '!s"als.

N,'(all! (a5,' ($"als a'$ i% s,li+ s"a"$s a" %,'(al "$(*$'a"'$. H,$3$'6 s,($ ($"als s# as

($''! a'$ als, i% li7i+ s"a"$ a" %,'(al "$(*$'a"'$. All ($"als a'$ #a3i% #i# "#$'(al &

$l$"'ial ,%+"i3i"!. All ($"als a'$ #a3i% *,si"i3$ "$(*$'a"'$ ,$ii$%" , '$sis"a%$. M$a%s

'$sis"a%$ , ($"als i%'$as$ i"# i%'$as$ , "$(*$'a"'$. E)a(*l$s , ($"als 8 Sil3$'6 C,**$'6

G,l+6 Al(i%(6 I',%6 9i%6 L$a+6 Ti% $". M$"als a% $ '"#$' +i3i+$+ i%", ", ',*s-

o F$'',s M$"als 8 All $'',s ($"als a'$ #a3i% i',% as ,((,% $l$($%". All $'',s (a"$'ials

a'$ #a3i% 3$'! #i# *$'($aili"! #i# (a:$s "#$s$ (a"$'ials si"al$ ,' ,%s"'"i,% ,

,'$ , $l$"'ial (a#i%$s. E)a(*l$s; Cas" I',%6 W',#" I',%6 S"$$l6 Sili,% S"$$l6 Hi#

S*$$+ S"$$l6 S*'i% S"$$l $".

o N,%-F$'',s M$"als- All %,%-$'',s ($"als a'$ #a3i% 3$'! l, *$'($aili"!. E)a(*l$;

Sil3$'6 C,**$'6 G,l+6 Al(i%( $".

N,%-M$"als

N,%-M$"al (a"$'ials a'$ %,%-'!s"alli%$ i% %a"'$. T#$s$ $)is" i% a(,'*#i ,' ($s,(,'*#i ,'(s.

T#$s$ a'$ i% ,"# s,li+ & as$s ,'(s a" %,'(al "$(*$'a"'$. N,'(all! all %,%-($"als a'$ a+

,%+",' , #$a" & $l$"'ii"!. E)a(*l$s;

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M$"als a'$ *,l!'!s"alli%$ ,+i$s #i# a'$ #a3$ %($' , +i$'$%"iall! ,'i$%"$+ i%$ '!s"als.

N,'(all! (a5,' ($"als a'$ i% s,li+ s"a"$s a" %,'(al "$(*$'a"'$. H,$3$'6 s,($ ($"als s# as

($''! a'$ als, i% li7i+ s"a"$ a" %,'(al "$(*$'a"'$.

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All,! UNS

B$si%a"i,%

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10@0 G10@00 10@0 is a #i#$' a',% 0.@0?

(a%a%$s$ s"$$l i% "#$ *lai% a',%

s"$$l all,! a(il!. I" *',3i+$s '$a"$'

s"'$%"# "#a% "#$ l,$' 'a+$s #il$

s"ill '$"ai%i% '$as,%al$ +"ili"!.

G$%$'all! s$+ i% "#$ 7$%#$+ a%+

"$(*$'$+ ,%+i"i,% ,' s"'$%"#.

A**lia"i,%s i%l+$ (a#i%$'! *a'"s

#$'$ s"'$%"# a%+ #a'+%$ss a'$

'$7isi"$.1040 G10400 1040 #as a #i#$' 0.40? a',%

,%"$%" ,' '$a"$' s"'$%"# "#a% "#$

l,$' a',% all,!s. I" is #a'+$% al$

! #$a" "'$a"($%"6 7$%# a%+

"$(*$'i% ", +$3$l,* 10 ", 20 :si

"$%sil$ s"'$%"#.

Us$+ ,' 'a%:s#a"s6 ,*li%s6 a%+

,l+ #$a+$+ *a'"s.

104 G1040 104 is a ($+i( a',% s"$$l s$+

#$% '$a"$' s"'$%"# a%+ #a'+%$ss is

+$si'$+ "#a% i% "#$ ',ll$+ ,%+i"i,%.

Us$+ i% $a's6 s#a"s6 a)l$s6 ,l"s6

s"+s6 a%+ (a#i%$ *a'"s.

100 G1000 100 is ,%$ , "#$ #i#$' a',%

,%"$%" 0.0? s"$$ls. I" is (,'$

+iil" ", a'ia"$ "#a% "#$ l,$'

a',% 'a+$s.

Us$+ ,' #a%+ ",,ls s# as

s'$+'i3$'s6 *li$'s6 a%+ si(ila'

i"$(s.

High carbon steels6 is s"$$l-,%"ai%i% a',% i% "#$ 'a%$ , 0.D0 ", 1.0? a%+ is $s*$iall! lass$+

as #i# a',% s"$$l. I% "#$ ll! #$a"-"'$a"$+ ,%+i"i,% i" is 3$'! #a'+ a%+ i" ill i"#s"a%+ #i# s#$a'a%+ $a' a%+ ill "#s $ s5$"$+ ", li""l$ +$,'(a"i,%. T#$! a'$ #i#l! s$%si"i3$ ", "#$'(al

"'$a"($%"s. Ma#i%aili"! is ,,+6 al"#,# "#$i' #a'+%$ss '$7i'$s (a#i%i% i% "#$ %,'(ali=$+

,%+i"i,%. W$l+i% is %," '$,(($%+$+ a%+ "#$s$ s"$$ls (s" %," $ s5$"$+ ", i(*a" l,a+i%.

T#$s$ s"$$ls a% #a3$ UTSs '$a"$' "#a% 1 G

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2. B'a a %$a" s:$"# a%+ $)*lai% ($"al $)"'si,% *',$ss. Gi3$ "#$ $)a(*l$ , ,' $)"'+$+

*',+"s. W#a" a'$ +i$'$%" "!*$s , $)"'si,% E)*lai%.

a.

E)"'si,% is "#$ *',$ss ! #i# a l,:/ill$" , ($"al is '$+$+ i% ',ss s$"i,% ! ,'i% i" ",l, "#',# a +i$ ,'ii$ %+$' #i# *'$ss'$.

I% $%$'al6 $)"'si,% is s$+ ", *',+$ !li%+'ial a's ,' #,ll, "$s ,' ,' "#$ s"a'"i% s",: ,'

+'a% ',+6 ,l+ $)"'si,% ,' ,'$+ *',+"s.

M,s" ($"als a'$ #," $)"'+$+ +$ ", la'$ a(,%" , ,'$s '$7i'$+ i% $)"'si,%. C,(*l$) s#a*$ a%

$ $)"'+$+ ',( "#$ (,'$ '$a+il! $)"'+al$ ($"als s# as al(i%i(. T#$ *',+"s ,"ai%$+ a'$

als, all$+ $)"'si,%

E)"'si,% is a ($"#,+ , ,'(i% i% #i# ($"als ,' *las"is a'$ ,'$+ "#',# a +i$ ,' s$'i$s ,

+i$s6 '$sl"i% i% a s*$ii s#a*$ , ,%s"a%" ',ss s$"i,%. Wi"# "#$ *',*$' ",,li%6 $)"'si,%s (a!

$ "a*$'$+ ,' s"$**$+. E)"'si,%s a% $ $i"#$' 3$'! "#i: i% ',ss s$"i,% ,' 3$'! "#i% a%+ $ $i"#$'

s,li+ ,' #,ll,. T#$ $)"'+$+ s",:6 #i# a% $ 100 $$" i% l$%"# ,' l,%$'6 is "#$% " ", a

,%3$%i$%" s",: si=$ a%+ s$+ as s*$ii *',+"s6 ass$(l! ,(*,%$%"s6 ,' as 'a s",: (a"$'ial

,' '"#$' *',$ssi%. E)"'si,% si=$ is $)*'$ss$+ as a i'l$ si=$ #i# '$la"$s ", "#$ s(all$s" i'l$

+ia($"$' #i# a% $%l,s$ a% $)"'si,%s ',ss s$"i,%. M$"al $)"'si,% *',$ss$s (a! $

*$','($+ #,"6 a'(6 ,' ,l+. Ea# ($"#,+ #as i"s ,% %i7$ ,*$'a"i% *a'a($"$'s.

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.

M$"al $)"'si,%s a'$ s$+ i% ,(($'ial a%+ +,($s"i il+i%s ,' i%+, a%+ +,,' 'a($

s!s"$(s6 *'$a'ia"$+ #,s$s/il+i% s"'"'$s6 ',,i% a%+ $)"$'i,' la++i%6 '"ai% alli%6

s#,* ',%"s6 $". F'"#$'(,'$6 $)"'si,%s a'$ als, s$+ i% "'a%s*,'" ,' ai''a($s6 ',a+ a%+ 'ail

3$#il$s a%+ i% (a'i%$ a**lia"i,%s.

).

Cold Extrusion; C,l+ $)"'si,% is "#$ *',$ss +,%$ a" ',,( "$(*$'a"'$ ,' sli#"l! $l$3a"$+

"$(*$'a"'$s. T#is *',$ss a% $ s$+ ,' (,s" (a"$'ials-s5$" ", +$si%i% ',s" $%,# ",,li%

"#a" a% i"#s"a%+ "#$ s"'$ss$s '$a"$+ ! $)"'si,%. E)a(*l$s , "#$ ($"als "#a" a% $ $)"'+$+ a'$

l$a+6 "i%6 al(i%( all,!s6 ,**$'6 "i"a%i(6 (,l!+$%(6 3a%a+i(6 s"$$l. E)a(*l$s , *a'"s "#a"

a'$ ,l+ $)"'+$+ a'$ ,lla*sil$ "$s6 al(i%( a%s6 !li%+$'s6 $a' la%:s. T#$ a+3a%"a$s ,,l+ $)"'si,% a'$;

N, ,)i+a"i,% "a:$s *la$.

G,,+ ($#a%ial *',*$'"i$s +$ ", s$3$'$ ,l+ ,':i% as l,% as "#$ "$(*$'a"'$s '$a"$+

a'$ $l, "#$ '$-'!s"alli=a"i,% "$(*$'a"'$.

G,,+ s'a$ i%is# i"# "#$ s$ , *',*$' l'ia%"s.

Hot Extrusion; H," $)"'si,% is +,%$ a" ai'l! #i# "$(*$'a"'$s6 a**',)i(a"$l! 0 ", D ? , "#$

($l"i% *,i%" , "#$ ($"al. T#$ *'$ss'$s a% 'a%$ ',( @-D00 M

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Indirect Extrusion; T#$ #,ll, 'a( ,%"ai%i% "#$ +i$ is :$*" s"a"i,%a'! a%+ "#$ ,%"ai%$' i"# "#$

ill$" is as$+ ", (,3$. F'i"i,% a" "#$ +i$ ,%l! %, '$la"i3$ (,3$($%" a" "#$ ,%"ai%$' all

'$7i'$s ',#l! ,%s"a%" *'$ss'$. H,ll, 'a( li(i"s "#$ a**li$+ l,a+.

Forward Extrusion; M$"al is ,'$+ ", l, i% "#$ sa($ +i'$"i,% as "#$ *%#. T#$ *%# l,s$l!

i"s "#$ +i$ a3i"! ", *'$3$%" a:a'+ l, , "#$ (a"$'ial.

Backward Extrusion; M$"al is ,'$+ ", l, i% "#$ +i'$"i,% ,**,si"$ ", "#$ *%# (,3$($%".

M$"al a% als, $ ,'$+ ", l, i%", '$$ss$s i% "#$ *%#6 s$$ Fi.

Ram

diebillet

Dummy plate

Extrusion

Di

Extrusio Closure

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@. B$s'i$ "#$ asi ,':i% *'i%i*l$ a%+ i(*,'"a%" *a'"s , La"#$ (a#i%$. W#a" a'$ "#$

+i$'$%" ,*$'a"i,%s *$','($+ ,% la"#$ (a#i%$ E)*lai% $a# , "#$(

orking !rinci"le; T#$ la"#$ is a (a#i%$ ",,l #i# #,l+s "#$ ,':*i$$ $"$$% ", 'ii+ a%+s"',% s**,'"s all$+ $%"$'s ,' i% a #: ,' a$ *la"$ #i# '$3,l3$s. T#$ ""i% ",,l is 'ii+l!

#$l+ a%+ s**,'"$+ i% a ",,l *,s" #i# is $+ aai%s" "#$ '$3,l3i% ,':. T#$ %,'(al ""i%

,*$'a"i,%s a'$ *$','($+ i"# "#$ ""i% ",,l $+ $i"#$' *a'all$l ,' a" 'i#" a%l$s ", "#$ a)is , "#$

,':.

Im"ortant "arts o# Late machine

1.$+; T#$ $+ is a #$a3!6 '$+ as"i% i% #i# a'$ (,%"$+ "#$ ,':i% *a'"s , "#$ la"#$. I"

a''i$s "#$ #$a+s",: a%+ "ail s",: ,' s**,'"i% "#$ ,': *i$$ a%+ *',3i+$s a as$ ,' "#$

(,3$($%" , a''ia$ ass$(l! #i# a''i$s "#$ ",,l.

2. L$s; T#$ l$s a''! "#$ $%"i'$ l,a+ , (a#i%$ a%+ a'$ i'(l! s$'$+ ", l,,' ! ,%+a"i,% ,l"s.

@. H$a+s",:; T#$ #$a+s",: is la(*$+ ,% "#$ l$" #a%+ si+$ , "#$ $+ a%+ i" s$'3$s as #,si% ,'

"#$ +'i3i% *ll$!s6 a: $a's6 #$a+s",: s*i%+l$6 li3$ $%"'$ a%+ "#$ $$+ '$3$'s$ $a'. T#$

#$a+s",: s*i%+l$ is a #,ll, !li%+'ial s#a" "#a" *',3i+$s a +'i3$ ',( "#$ (,",' ", ,': #,l+i%

+$3i$s.

4. G$a' ,); T#$ 7i:-#a%$ $a'-,) is *la$+ $l, "#$ #$a+s",: a%+ ,%"ai%s a %($' ,

+i$'$%" si=$+ $a's.

. Ca''ia$; T#$ a''ia$ is l,a"$+ $"$$% "#$ #$a+s",: a%+ "ails",: a%+ s$'3$s "#$ *'*,s$ ,

s**,'"i%6 i+i% a%+ $$+i% "#$ ",,l aai%s" "#$ 5, +'i% ,*$'a"i,%. T#$ (ai% *a'"s , a''ia$

a'$;

o a. T#$ sa++l$ is a% H-s#a*$+ as"i% (,%"$+ ,% "#$ ",* , la"#$ a!s. I" *',3i+$s s**,'" ",

',ss-sli+$6 ,(*,%+ '$s" a%+ ",,l *,s".

o . T#$ ',ss sli+$ is (,%"$+ ,% "#$ ",* , sa++l$6 a%+ i" *',3i+$s a (,%"$+ ,' a",(a"i

',ss (,3$($%" ,' "#$ ""i% ",,l.

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o . T#$ ,(*,%+ '$s" is i""$+ ,% "#$ ",* , ',ss sli+$ a%+ is s$+ ", s**,'" "#$ ",,l *,s"

a%+ "#$ ""i% ",,l.

o +. T#$ ",,l *,s" is (,%"$+ ,% "#$ ,(*,%+ '$s"6 a%+ i" 'ii+l! la(*s "#$ ""i% ",,l ,'",,l #,l+$' a" "#$ *',*$' #$i#" '$la"i3$ ", "#$ ,': $%"'$ li%$.

o $. T#$ a*',% is as"$%$+ ", "#$ sa++l$ a%+ i" #,s$s "#$ $a's6 l"#$s a%+ l$3$'s '$7i'$+ ",

(,3$ "#$ a''ia$ ,' ',ss sli+$. T#$ $%a$($%" , s*li" %" l$3$' a%+ "#$ a",(a"i $$+

l$3$' a" "#$ sa($ "i($ is *'$3$%"$+ s#$ a''ia$ al,% "#$ la"#$ $+.

. Tails",:; T#$ "ails",: is a (,3al$ as"i% l,a"$+ ,**,si"$ "#$ #$a+s",: ,% "#$ a!s , "#$

$+. T#$ "ails",: a% sli+$ al,% "#$ $+ ", a,((,+a"$ +i$'$%" l$%"#s , ,': *i$$ $"$$%

"#$ $%"$'s. A "ails",: la(* is *',3i+$+ ", l,: "#$ "ails",: a" a%! +$si'$+ *,si"i,%. T#$ "ails",:

s*i%+l$ #as a% i%"$'%al "a*$' ", #,l+ "#$ +$a+ $%"$' a%+ "#$ "a*$'$+ s#a%: ",,ls s# as '$a($'s a%+

+'ills.

$"erations

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T#'$a+i%; T#'$a+i% is "#$ a" , ""i% , "#$ '$7i'$+ ,'( , "#'$a+s ,% "#$ i%"$'%al ,' $)"$'%al

!li%+'ial s'a$s.

F,'(i%; T#$ ,'(i% is a% ,*$'a"i,% "#a" *',+$s a ,%3$)6 ,%a3$ ,' a%! i''$la' *',il$ ,%

"#$ ,':*i$$.

C#a($'i%; C#a($'i% '$(,3$s "#$ ''s a%+ s#a'* $+$s6 a%+ "#s (a:$s "#$ #a%+li% sa$.

C#a($'i% a% $ +,%$ ! a ,'( ",,l #a3i% a%l$ $7al ", #a($' #i# is $%$'all! :$*" a" 4J.

G',,3i%; G',,3i% is "#$ a" , (a:i% ',,3$s , '$+$+ +ia($"$' i% "#$ ,':*i$$.

Fili% a%+

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