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WELCOME

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TWO-STEPPED LASER ASSISTED

MICROGRINDING OF CERAMICS

 

GUIDE : PRESENTED BY:  FYZAL.B SANOOJ.N

ASSISTANT PROFESSOR S7,7253

  MECHANICAL DEPARTMENT

  YCET

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 INTRODUCTION PROBLEM FORMULATION & REMEDY

 TWO STEPPED LASER ASSISTED

  MICRO GRINDING MECHANISM

 EXPERIMENTAL SETUP

 EXPERIMENTS

 RESULTS

 CONCLUTIONS

 REFERENCES

CONTENTS1

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Mic!" c!#$!%%'(C)#ic #)'i)*(

A$$*ic)'i!%( !+  c)#ic #ic!" c!#$!%%'(

Mic!"Gi%i%-

Mic! -i%i%- !+ c)#ic(

INTRODUCTION2

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PROBLEM:

C!%.%'i!%)* -i%i%- $!c(( i( -%)**/ !% )' Hi-0 (1+)c

c1''i%- ($ & *! $'0 !+ c1' , '0i( i%c)(( '0 #)c0i%i%- 'i#

T!!* ) i( 0i-0

REMEDY:

I% ! '! c)( '0 #)c0i%i%- 'i# & '01( '! i%c)(

 $!1c'i.i'/, ) '! ('$$ -i%i%- (')'-/ c)% 4 )!$'

Fi(' ('$ i( R!1-0 -i%i%-, & (c!% ('$ i( Fi%i(0 -i%i%-

T0i( c)% 4 )$$*i !%*/ '! $)'ic*( )' M)c! *.*, (i%c !1-0

-i%i%- !+ ) c)#ic c!#$!%%' i** c)1( '!!* +)i*1 1 '! '0

c)')('!$0ic +)i*1 !+ '0 +)-i* #ic! -i%i%- '!!*

S! ) two stee! "#se$ #ss%ste! &%'$o-($%)!%)( te'*)%+,e i( 1(

+! '0 &%'$o- ($%)!%)( o 'e$#&%' 'o&o)e)ts.

PROBLEM FORMULATION AND REMEDY 

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A L)( i( i%c!$!)' i%'! '0 '! ('$$ -i%i%-

'c0%i1

Gi%i%- +!c( i( 1c 4/ *!c)**/ )6%i%- '0c)#ic #)'i)* '0!1-0 i%'!1c'i!% !+ '0#)* c)c6(

& (14(1%'*/ #!.i%- i' #c0)%ic)**/

T0#)* c)c6( ) i%1c 4/ LASER i)i)'i!%

M)'i)* i( '0% #!. 4/ '! ('$$

Mic! "-i%i%-

TWO-STEPPED LASER ASSISTED

MICRO-GRINDING

/

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MECHANISM

 

0

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T*e "#se$ #ss%ste! &%'$o ($%)!%)( '*%)e ,se! %) t*%s wo$.

  T0i( #)c0i% c!%(i(' !+ :

A .)i)4* 0i-0 ($ ($i%* i'0

  !')'i!%)* ($ 1$ '! 8,888 $# C1''i%- ($ 1$ '! 288 ##9#i%

A *)'i. *! $! *)( #); 35W<

 N! c!!*)%' i( 1( i% '0i( ;$i#%'

L#se$

L)( ($!' (i= > 28 ?#

L)( $! > @5W

EXPERIMENTAL SETUP

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 Wo$%e'e 3 too" te$%#":

!6$ic (i= : 25## L< 25## W< 375## D<

!6$ic #)'i)* : Si*ic!% Ni'i c)#ic #)'i)*< T!!* : A4)(i. i)#!% -i%i%- $%ci* !+

88?#8##< i)#' 

o  U% '0( c!%i'i!%( , '0 #);i#1# '0#)* ('(( i( 732 M$) ,

  0ic0 i( 0i-0 '0)% '0 +)c'1 ('(( !+ 388"88 M$) +!

(i*ic!% %i'i

4

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LASER SCANNING

F!# +i-@< : O$'ic)* #ic!-)$0<

  " T0 $'0 !+ 0)' )++c' -i!% i( )4!1' 38 ?#

  " A '0i% *)/ !+ )#!$0!1( #)'i)* i( +!#

F!# +i-2< : SEM Mic!-)$0<

  " S0!( *)( i%1c c)c6 !% '0 (1+)c !+ (i*ic!% %i'i ($ci#%

  " T0( c)c6( )6% '0 #)'i)* *!c)**/

EXPERIMENTS5

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 M%'$o ($%)!%)(

#ic! -i%i%- )' i++%' $'0 !+ c1' )( *i(' i% ')4* @

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 GRINDING FORCE

RESULTS1

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 S;RFACE RO;G +i-)< (0!((i-%i+ic)%' 144i%-

!+ '0 '!!* % +)c

 >

+i-4< (0!( + 144i%- i( !%*/!4(. i'0 *)( )((i('

11

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12

TOOL WEAR 

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 GROO=E DIMENSIONS 

1

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∗ @ T0 (1*')%' -i%i%- +!c( ) *! i'0 *)( )((i(' 1% )**  c!%i'i!%(

  2 T0 -!!. (1+)c !1-0%(( i( c!#$))4* +! '0 c)((

  i'0 )% i'0!1' *)( )((i('

  3 T!!* ) i( *(( i'0 *)( )((i(' '0)% i'0!1' i'

  Hi-0 $'0( !+ c1'

CONCLUSIONS

1/

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REFERENCES

@ L)(")((i(' #ic! -i%i%- !+ c)#ic(M 1#) ), S M*6!' ),, G L)0!'i @JJ3

W('6)#$ E @JJ5< Gi%i%- A((i(' 4/ N:YAG L)(( A%%)*( !+ '0 CIRP

:3@7>328

10

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T YO;?.