18787129 shaping grinding and realated operations

8/13/2019 18787129 Shaping Grinding and Realated Operations

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LECTURE-05SHAPING & RELATED OPERATIONS

NIKHIL R. DHAR, Ph. D.DEPARTMENT OF INDUSTRIAL & PRODUCTIONENGINEERING

BUET BANGLADESH


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Department ! In"#$tr%a & Pr"#'t%n En(%neer%n( )*+)

Shap%n( an" Pan%n(

Shaping and Planing among th old!t t"hni#$!

Shaping i! %h th %o'pi" i! (d at ight angl! to th"$tting motion )t%n !$""!!i* !to'! o( th tool+

Planing th %o'pi" i! "ipo"atd and th tool i! (d atight angl! to th "$tting motion+

Th! po"!! #$i !'illd opato! and (o th mo!t patha* )n pla"d ), oth po"!!!


3/26

Department ! In"#$tr%a & Pr"#'t%n En(%neer%n( )*+

Ca$$%!%'at%n ! Shaper$

Hoi-ontal.p$!h "$t

Plain /Pod$"tion %o'0 Uni*!al /Tool oom %o'0

Hoi-ontal.da% "$t

1ti"al

Slott

2, !atSp"ial p$po!.a! (o ga "$tting


4/26

Department ! In"#$tr%a & Pr"#'t%n En(%neer%n( )*+

Hr%nta P#$h C#t Shaper

Th !hap i! a lati*l, !impl ma"hin+ It i! $!d (ail, o(tn in thtooloom o (o ma"hining on o t%o pi"! (o potot,p %o'+ Tooling i!

!impl3 and !hap! do not al%a,! #$i opato attntion %hil "$tting+Th hoi-ontal !hap i! th mo!t "ommon t,p3 and it! pin"ipal"omponnt! a !ho%n )lo%3 and d!"i)d a! (ollo%!4


5/26

Department ! In"#$tr%a & Pr"#'t%n En(%neer%n( )*+5

Ram4 Th am !lid! )a"' and (oth in do*tail o !#$a %a,! to tan!mit po%to th "$tt+ Th !tating point and th lngth o( th !to' "an ) ad5$!td+

Thea"4 Th toolhad i! (a!tnd to th am on a "i"$la plat !o that it "an) otatd (o ma'ing ang$la "$t!+ Th toolhad "an al!o ) mo*d $p o do%n), it! hand "an' (o p"i! dpth ad5$!tmnt!+


6/26

Department ! In"#$tr%a & Pr"#'t%n En(%neer%n( )*+*

Capper /4 Th "lapp )o6 i! ndd )"a$! th "$tt dag! o* th%o' on th t$n !to'+ Th "lapp )o6 i! hingd !o that th "$tting too7 %ill

not dig in+ O(tn thi! "lapp )o6 i! a$tomati"all, ai!d ), m"hani"al3 ai3 oh,da$li" a"tion+

Ta1e4 Th ta)l i! mo*d l(t and ight3 $!$all, ), hand3 to po!ition th %o'$nd th "$tt %hn !tting $p+ Thn3 ith ), hand o mo o(tna$tomati"all,3 th ta)l i! mo*d !id%a,! to (d th %o' $nd th "$tt atth nd o )ginning o( a"h !to'+


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Sa""e3 Th !addl mo*! $p and do%n /8 a6i!03 $!$all, man$all,3 to !t tho$gh po!ition o( th dpth o( "$t+ Final dpth "an ) !t ), th hand "an' on

th tool had+C#mn4 Th "ol$mn !$ppot! th am and th ail! (o th !addl+ Thm"hani!m (o mo*ing th am and ta)l i! ho$!d in!id th "ol$mn+


8/26


T h"er$4 Tool hold! a th !am a! th on! $!d on at ngin lath3tho$gh o(tn lag in !i-+ Th "$tt i! !hapd %ith a' and "laan"

angl! !imila to lath tool! tho$gh th angl! a !mall )"a$! th %o'!$(a" i! $!$all, (lat+ Th! "$tt! a (a!tnd into th tool hold+ 5$!t a! inth lath3 )$t in a *ti"al plan+

r6h"%n(4 9o'holding i! (#$ntl, don in a *i!+ Th *i! i! !p"iall,d!ignd (o $! in !hap! and ha! long %a,! %hi"h allo% th 5a%! to opn $pto :;< o mo3 th(o #$it lag %o'pi"! "an ) hld+ Th *i! ma, al!oha* a !%i*l )a! !o that "$t! ma, ) mad at an angl+ 9o' that "annot )hld in th *i! /d$ to !i- o !hap0 i! "lampd di"tl, to th !hap ta)l in

m$"h th !am %a, a! pat! a !"$d on milling ma"hin ta)l!+Shaper S%e4 Th !i- o( a !hap i! th ma6im$m lngth o( !to' %hi"h it "anta'+ Hoi-ontal !hap! a mo!t o(tn mad %ith !to'! (om :=. to >;< long3tho$gh !om !mall and lag !i-! a a*aila)l+ Th! !hap! $! (om >. to?.hp moto! to di* th had and th a$tomati" (d+

Shaper %"th4 Th ma6im$m %idth %hi"h "an ) "$t dpnd! on th a*aila)lmo*mnt o( th ta)l+ Mo!t !hap! ha* a %idth "apa"it, #$al to o gatthan th lngth o( th !to'+ Th ma6im$m *ti"al hight a*aila)l i! a)o$t :>

18787129 shaping grinding and realated operations

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