Page 395 - Content.pmd

£_õ & Gm (CG & M) T«t£ 1.7.93 dLô] ùRôPo× LÚj§Vp
@©hPo (Fitter) - Po²e (Turning)

ûUVeLÞd¡ûP«Xô] LûPNÛdÏl T¦lùTôÚû[j RVôo ùNnRp
Utßm úLhf ©ú[h Utßm PôdÏPu úYûX ùNh¥e ùNnRp (Preparing
work for in-between centre)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• ûUVeLÞd¡ûP«Xô] LûPNÛdÏl T¦lùTôÚû[j RVôo TÓjÕRp
• úLhf ©ú[hûP ùNh¥e ùNnRp
• úLhf ©ú[h Utßm PôdÏPu úYûX ùNh¥e ùNnRp.
ûUVeLÞd¡ûP«p T¦lùTôÚû[ ûXq ùNuP¬u true running- tLôLf
Po²e ùNnYÕ T¦lùTôÚû[ truing úNô§dLÜm (Fig 1)
TiÔm AY£VjûRj R®od¡\Õ. ØÝ
Fig 1
¿[j§tÏm LûPNp ùNnVlThP
T¦lùTôÚs CûQVôL CÚdÏm. B]ôp
CRtÏ Ød¡VUôL SoXõe (knurling) UûW
ùYhÓRp (thread cutting) ALrùYhÓ
(undercutting) úTôu\
T¦Lû[d ùNnV ªÏkR §\ûU (great skill)
úRûYl TÓ¡\Õ. EiûUVô]
ùNVpTôÓLû[ (actual operations)
úUtùLôsÞm ØuTôL T¦lùTôÚÞdÏd
¸rdLiP Øu SPY¥dûL/RVôo TÓjÕm
SPY¥dûLLû[f ùNnYÕ / úUtùLôsYÕ
AY£VUô¡\Õ.
CHECKING TRUENESS OF THE CENTRE
T¦lùTôÚ°u CWiÓ TdLeLû[Ùm (both WITH A PIECE OF CHALK
sides) ØLl×d LûPNp (face) TiQÜm
ECCENTRIC DIAMETRE BEING
Utßm ØÝ ¿[jûRÙm (total length) PRODUCED
ÕpXõVUôL (accurately) YWm©tÏ
EhThPRôLl (within limits) TWôU¬dLÜm.

N¬Vô] A[ÜûPV Utßm N¬Vô] YûL
ùNuPo h¬pûXj (centre drill) úRokùRÓjÕ
CWiÓ Øû]L°Ûm (both ends) ùNuPo
h¬pXõe TiQÜm. RESULT OF LIVE CENTRE BEING OUT OF TRUE

v©i¥p nosep CÚkÕ chuck-I d LZt± T¦lùTôÚs ®hPj§tÏl ùTôÚjRUô]
®hÓ hûW®e ©ú[h ApXÕ úLhf úXj úL¬VûWj úRokùRÓjÕ ARu Yû[kR
©ú[h AùNm©s TiQÜm. YôpTϧ (bent tail) ùY°l×\jûR úSôd¡
CÚdÏmT¥VôL ûYjÕ T¦lùTôÚ°u
v©i¥p nosep v©i¥p sleeve-I
JÚ Øû]«p fasten TiQÜm (Fig 2)
AùNm©s (assemble) ùNnÕ, ûXq ùNuPûW
(live centre) vÄÜPu ùTôÚjRÜm. (fix @©²x TiQlThP TWl× EûPV
TiQÜm). T¦lùTôÚs B]Õ JÚ £±V ©jRû[j
RLûP (sheet of brass) ApXÕ RôªWjRLûP
v©i¥p vÄq Utßm ûXq ùNuPo
(copper sheet) Id úL¬V¬p Es[ screw ®u
CWiÓm úNRm CpXôUÛm ©£ßLs (burrs)
Øû] Utßm T¦lùTôÚÞdÏm SÓ®p
CpXôUÛm Utßm AùNm©° TiÔm
ÖûZjÕl TôÕLôdLlTP úYiÓm (Fig 3)
Øu]o ØÝûUVôLf ÑjRm TiQl
ThÓs[Õ GuTûRÙm Eߧ ùNnVÜm.

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