Page 434 - Content.pmd

£_õ & Gm (CG & M) T«t£ 1.7.105 dLô] ùRôPo× LÚj§Vp
@©hPo (Fitter) - Po²e (Turning)

úXj BlTúW`u So≠e - (Lathe Operation - Knurling)

úSôdLeLs : ClTôP Cߧ«p ¿eLs §\m ùT\ CÚlTûY
• ¸\XõÓm Øû\ûV ®[dÏRp
• ¸\XõÓm TVuLû[ áßRp
• ¸\p YûLLs Utßm ¸\p Y¥Y YûLLû[ á\p
• SoXõeÏL°u ¡úWÓL°u ùTVoLû[ áßRp
• TpúYß YûLVô] SoXõe åp úaôpPoLû[ JlÀÓ ùNnRp.
SoXõe Knurling (Fig 1) ÏßdÏd ¸±XõPp (Cross knurling)
ϯVô] ¸±XõPp (Concave knurling)
Ï®Vô] ¸±XõPp (Convex knurling)

ûYW Y¥Yd SoXõe (Diamond knurling)
(Fig 2)

ûYW Y¥Y SoXõe AûUl×dLû[ LûPNp
CVk§Wj§p ùTßYRtÏ ûYW LûW«ÓRp
G]lùTVo. CÕ £X EÚû[L°u
ÏÝUeL°]ôp (set of rolls) ùT\lTÓ¡\Õ. JÚ
EÚû[«u YXdLW ØßdÏ TtLÞm
¸\XõÓm E°Lû[d ùLôiÓ EÚû[Vô]
Cuù]ôÚ EÚû[«p CPdLW ØßdÏ
T¦lùTôÚhL°p úUt×\eL°p úSWô]
(helical) TtLÞm AûUk§ÚdÏm.
úLôÓL°ÓYúRô, ûYWm úTôuß
Y¥YªÓYúRô ¸\XõPp G]lTÓm. CÕ JÚ
ùYhÓm ùNVpØû\VpX. CÕ JÚ Ïû\kR
ÑZp RiÓ úYLj§p (LûPNp úYLj§p 1/3
TeÏ) CÕ ùNnVlTÓ¡\Õ. LûWdLlThP
GiùQûVl (Soluble oil) ùTôÕYôL
Ï°ìh¥VôLl TVuTÓjÕYo. SpX TWl×
Ø¥l× ùT\ £X NUVeL°p úS¬ûP ùYhÓ
GiùQûVÙm (Stright cutting oil) úSWô] SoXõe (Straight knurling) (Fig 3)
TVuTÓjRXôm.
úSôdLm Purpose of knurling

¸rdLiP úSôdLeLÞdLôL EÚû[Vô]
T¦lùTôÚhLû[ SoXõe«PlTÓ¡u\].

CVk§W E§¬ TôLeLs Utßm ûLVL
E°L°u SpX ûLl©¥jRuûU (good hand
grip) ùT\
úSWô] úLôÓL°hP Y¥YeL[ôL
T¦lùTôÚÞdÏ SpX úRôt\m ùLôÓdL
SoXõe«ÓYûR úSWô] ¸\XõPp G]Xôm.
AÝj§l ùTôÚjRm ùNnÙm (press fit Juß ApXÕ CWiÓ úSWô] TtLû[d
assembly) ùLôiP EÚû[Lû[d ùLôiÓ Cd ¸\p
JÚ TôLj§u ®hPj§û] £±Õ A§LUôdL ùNnVlTÓ¡\Õ.
SoXõe¡u YûLLs Utßm SoXõe ÏßdÏd SoXõe (Cross knurling) (Fig 4)
Y¥YeLs (Types of knurls and knurling patterns)
NÕW Y¥Yd ¸\p Y¥YeLû[
ûYW Y¥Yd ¸±XõPp (Diamond knurling) CdLWûQ«Pp ùLôÓd¡u\]. JÚ

úSWô] ¸±XõPp (Straight knurling) EÚû[«p úSWô] TtLÞm Utù\ôÚ

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