Alignment Tests

8/9/2019 Alignment Tests

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ALIGNMENT TESTS

P.SHARATH CHANDRA

ROLL NO : 143511

MANUFACTURING ENGG.


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PRESENTATION OUTLINE

INTRODUCTION

INSTRUMENTS REQUIRED FOR ALIGNMENT TESTS

TYPES OF GEOMETRIC CHECKS

ALIGNMENT TESTS ON LATHE

LIMITATIONS

PROBLEMS

REFERENCES


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INTRODUCTION

Contn!o!"#$ n%&'("n) *'+(n* ,o& -)-#$ (%%!&(t' +(%-n'* %o+on'nt"

A#)n+'nt t'"t" on ( +/t " %(&&'* o!t to %-'%0 t-' )&(*' o, +(n!,(%t!&n)(%%!&(%$ o, t-' +/t

T-' t'"t" -%- %-'%0 t-' (#)n+'nt (%%!&(%$ o, 2(&o!" (&t" o, ( +/t !n*'&"t(t% %on*ton" (&' %(##'* "t(t% t'"t"

A#)n+'nt t'"t" -%- (&' '&,o&+'* !n*'& *$n(+% #o(*n) (&' %(##'*

*$n(+% t'"t"


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T$'" o, t'"t"

P&(%t%(# t'"t"

M(%-nn) o, t'"t '%'"

To %-'%0 t-' (%%!&(%$ o, t-' ,n"-'* %o+on'nt

Con""t" o, &'(&n) t-' (%t!(# o on t-' o (n* %-'%0n) t-'(%%!&(%$ o, t-' o" &o*!%'*

G'o+'t&%(# t'"t"

I*#' (n* n !n#o(*'* %on*ton

To %-'%0 t-' )&(*' o, +(n!,(%t!&n) (%%!&(%$ o, +/t

Con""t" o, %-'%0n) t-' &'#(ton"- / 2(&o!" +/% '#'+'nt"


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M'("!&n) n"t&!+'nt" !"'* ,o& t'"tn)

D(# n*%(to&" t'"t +(n*&'#"

St&()-t '*)'" "&t #'2'#"


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T$'" o, )'o+'t&% %-'%0"

St&()-tn'"" :

!(#t$ o, "t&()-tn'"" n &'%"on 'n)n''&n) " &'&'"'nt'* $ "t&()-t'*)'.

T-' to#'&(n%' on t-' "t&()-tn'"" o, ( #n' " *',n'* (" t-' +(6+!+

*'2(ton n &'#(ton to t-' &','&'n%' "t&()-t #n' onn) t-' to '6t&'+t'"

o, t-' #n' to ' %-'%0'*

Following straightness checks are conducted :

St&()-tn'"" o, ( #n' n to #(n'"

St&()-tn'"" o, %o+on'nt"

St&()-t #n' +oton


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F#(tn'"" :

A "!&,(%' " "(* to ' ,#(t t-n ( )2'n &(n)' -'n t-' 2(&(ton o, t-'

'&'n*%!#(& *"t(n%' o, t" ont" ,&o+ ( )'o+'t&%(# #(n' (&(##'# to t-')'n'&(# t&('%to&$ o, t-' #(n' to ' t'"t'* &'+(n" '#o ( %'&t(n 2(#!'

M't-o*" to %-'%0 t-' ,#(tn'"" :

C-'%0n) $ "!&,(%' #(t'

C-'%0n) $ "t&()-t '*)'

C-'%0n) $ "&t #'2'#


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P(&(##'#"+ 7 '!*"t(n%' (n* %on%*'n%' :

8(&o!" %("'" o, (&(##'#"+ (&' (&(##'#"+ o, (n (6" to ( #(n' 7 (&(##'#"+o, to #(n'" 7 (&(##'#"+ o, to (6"

E!*"t(n%' " ( "'%(# %("' o, (&(##'#"+ 7-%- &'#(t'" to t-' *"t(n%''t''n t-' (6'" (n* ( &','&'n%' #(n'

To #n'" o& (6'" (&' "(* to ' %on%*'nt -'n t-'& *"t(n%' o2'& "'2'&(#

ont" o2'& ( )2'n #'n)t- " t-n ( "'%,'* 2(#!'.


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Rot(ton" :

Ro!n* o*$

Radial throw of an axis at a given point " t-' *"t(n%' 't''n t-'

nt'&"'%ton o, t-' )'o+'t&%(# (6" (n* t-' &ot(tn) (6" t- ( #(n'

'&'n*%!#(& to t-' (6" o, &ot(ton (t ( )2'n ont

T-' +n+!+ '&+""#' (6(# "# *',n'" t-' #+t o, t-' (6(# "# o, t-'"n*#' *!&n) on' "#o &ot(ton t- ( "#)-t (6(# &'""!&'


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ALIGNMENT TESTS ON LATHE

L'2'##n) o, t-' +(%-n' :

#'2'# o, +(%-n' '* n #on)t!*n(# (n* t&(n"2'&"' *&'%ton" t'"t'* $ (

"'n"t2' "&t #'2'#

To &'(*n)" to ' t(0'n "+!#t(n'o!"#$ "o t-(t t-' ',,'%t o, (*!"t+'nt" n

on' *&'%ton +($ (#"o o"'&2'* n t-' ot-'&.

R'(*n) n t&(n"2'&"' *&'%ton &'2'(# (n$ t"t o& n* n t-' '*

T , # t # * , *#


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T&!' &!nnn) o, #o%(tn) %$#n*'& o, +(n "n*#':

#o%(tn) %$#n*'& " &o2*'* to #o%(t' t-' %-!%0 o& ,(%' #(t'

Lo%(tn) "!&,(%' " %$#n*'& (n* +!"t &!n t&!#$

D(# n*%(to& " ,6'* to t-' %(&&()' (n* t-' ,''#'& o, t-' n*%(to& to!%-'"t-' #o%(tn) "!&,(%'

S!&,(%' " t-'n &ot(t'* on t" (6" (n* n*%(to& "-o!#* not "-o (n$+o2'+'nt o, n''*#'


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A6(# "# o, +(n "n*#' (n* t&!' &!nnn) o, "-o!#*'& ,(%'

o, "n*#' no"' :

A6(# "# " *',n'* (" (6(# "n*#' +o2'+'nt -%- " *!' to +(n!,(%t!&n)

'&&o&

D(# )(!)' t &'"t" on t-' ,(%' o, #o%(tn) "n*#' "-o!#*'& (n* *(# )(!)'

-o#*'& " %#(+'* to t-' '*

Tot(# '&&o& n*%(t'* $ t-' +o2'+'nt o, ont'&


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T&!' &!nnn) o, -'(*"to%0 %'nt&' :

It " t-' #2' %'nt&' (n* t-' o&0'%' -(" to &ot(t' t- t-" %'nt&'

F''#'& o, t-' *(# n*%(to& " &'""'* '&'n*%!#(& to t-' t('& "!&,(%' o,

t-' %'nt&' (n* "n*#' " &o(t'*

D'2(ton n*%(t'* $ t-' *(# )(!)' )2'" t-' t&!'n'"" o, t-' %'nt&'


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P(&(##'#"+ o, t-' +(n "n*#' to "(**#' +o2'+'nt :

S-o!#* ' %-'%0'* n ot- 2'&t%(# (n* -o&ont(# #(n'"

;' &'!&' t-' !"' o, +(n*&'# o, &oo&ton(# "'

I, (6" o, "n*#' " not (&(##'# n -o&ont(# 7 ( t('&'* "!&,(%' " &o*!%'*7

(n* , t " not (&(##'# n 2'&t%(# t-'n ( -$'&o#o* "!&,(%' " &o*!%'*

F''#'& " &'""'* on t-' +(n*&'# (n* %(&&()' " +o2'*


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T&!' &!nnn) o, t('& "o%0't n +(n "n*#' :

A6" o, t('&'* -o#' o, t-' "o%0't " not %on%'nt&% t- t-' +(n "n*#' (6"

E%%'nt&% (n* t('&'* o" ## ' &o*!%'*

To t'"t t-" +(n*&'# " ,tt'* nto t('&'* -o#'

R'(*n)" (t to '6t&'+'" o, t-' +(n*&'# (&' t(0'n $ +'(n" o, ( *(# n*%(to&

T-' *,,'&'n%' o, t-' &'(*n) o, *(# n*%(to& ## "-o t-' '&&o&

## # , # 0 * - - ,


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P(&(##'#"+ o, t(#"to%0 )!*'($" t- t-' +o2'+'nt o,

%(&&()' :

Fo& t-' o" *on) 't''n t-' -'(*


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Mo2'+'nt o, !'& "#*' (&(##'# t- +(n "n*#' n 2'&t%(#

#(n' :

Not t'"t'* n -o&ont(# #(n' '%(!"' t-'&' " "2'##n) (&&(n)'+'nt o, t('&

t!&nn)

D(# n*%(to& " &'""'* ()(n"t t-' +(n*&'# n 2'&t%(# #(n' (n* !'& "#*' "

+o2'* #on)t!*n(##$

Fo& o" -'#* / to %'nt&'" t-'n t " n'%'""(&$ t-(t t-' %'t&(# (6" o, t-'

*'(* %'nt&' ' %o(6(# t- t-' o (6" n ot- t-' #(n'"

C(&&()' " +o2'* (#on) t-' ,!## #'n)t- o, t-' "#''2' (n* *'2(t'* (" n*%(t'*

$ *(# n*%(to&


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P(&(##'#"+ o, t(#"to%0 "#''2' t('& "o%0't to "(**#'

+o2'+'nt :

T'"t " %(&&'* o!t n ot- t-' #(n'"

M(n*&'# " !t n "#''2' "o%0't (n* *(# )(!)' " ,6'* on t-' too# o"t

P#!n)'& " &'""'* ()(n"t t-' +(n*&'# (n* "(**#' " +o2'* ,&o+ on' "*' to(not-'&

A# , - - # #


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A#)n+'nt o, ot- t-' %'nt&' n 2'&t%(# #(n' :

B'"*' t'"tn) (&(##'#"+ o, t-' (6" n*2*!(##$ t " n'%'""(&$ to %-'%0 t-'&'#(t2' o"ton o, t-' (6" (#"o.

Bot- t-' (6" +($ ' (&(##'# to %(&&()' +o2'+'nt !t t-'$ +($ not '

%on%*n)

T'"t " %(&&'* o!t n 2'&t%(# #(n' on#$.

M(n*&'# " ,tt'* 't''n t-' %'nt&'" (n* *(# )(!)' on t-' %(&&()'


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L+t(ton" :

T-' +'("!&'+'nt" %(n ' +(*' on#$ t- t-' "n*#' &ot(tn) "#o#$. T-'"'+($ *,,'& -'n t-' "n*#' &ot(t'" (t o&0n) "''*"

T-' "#o %o+on'nt o, t-' "n*#' &ot(ton '&&o& =t-' #o -(&+on%

%o+on'nt"> (&' not *"tn)!"-'* ,&o+ t-' -)-'& %o+on'nt" (#t-o!)- t-'to -(2' *,,'&'nt ")n,%(n%'" ,o& t-' +(%-n'* "!&,(%'"

No &'%o&* " ot(n'*

Fo& (n(#$t%(# !&o"'"7 t " not o""#' to !n*'&"t(n* t-' "o!&%'" o, '&&o&"


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P&o#'+":

C(#%!#(t' t-' *"#(%'+'nt o, t-' !#' = n ++> n "&t #'2'# o, "'n"t2t$

?.5 ,n* t-' %-(n)' n "#o' =n> n'%'""(&$ ,o& &o*!%n) ( !#' +o2'+'nt-'n t-' *"t(n%' 't''n to *2"on" " 4++

"o#!ton :

"'n"t2t$ @ *"#(%'+'nt o, !#' n ++/1++ '& +'t'&

C-(n)' n "#o' =n> @ *"t(n%' 't''n to *2"on" /"'n"t2t$

T-'&',o&' n @ 4/?.5@++


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I, t-' #'("t %o!nt o, ( *(# )(!)' " ?.?++ 7 t-'n %(#%!#(t' t-' +'("!&'+'nt

, t-' *(# )(!)' &'(*n) " 55.

So#!ton :

A%t!(# R'(*n) @ D(# G(!)' R'(*n) 6 L.C

@ 55 6 ?.?

@1.1++


23/24

R','&'n%'"

1>P&'%"on 'n)n''&n) n +(n!,(%t!&n) $ R.L.MURTY

> -tt://-(t -tt"://.0'*(.o&)/

4>."%&*.%o+

http://what-when-how.com/metrology/https://www.wikipedia.org/http://www.scribd.com/http://www.scribd.com/https://www.wikipedia.org/http://what-when-how.com/metrology/


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T-(n0 $o!

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