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P. 93
£_õ & Gm (CG & M) T«t£ 1.2.21 dLô] ùRôPo×d LÚj§Vp
@©hPo (Fitter) - A¥lTûP ùTôÚjÕRp (Basic Fitting)
Ï°okR £Np (Cold chisel)
úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• JÚ Ï°okR £NXõu TVuLû[l Th¥VXõÓRp
• JÚ úLôpÓ £NXõu TôLeL°u ùTVo A±Rp
Scan the QR Code to view
• £NXõu ùYqúYß YûLLû[d A±Rp the video for this exercise
• £NXõu ®YWd ϱl×Ls.
ùNÕdÏRp (chipping) Utßm ùYhÓRÛdÏ £NpLs, ûa LôoTu v¼p (high carbon steel)
ùTôÚjÕSWôp TVu TÓjRlTÓm ûLd LÚ® ApXÕ ÏúWôm ùY]¥Vm v¼p-Bp
úLôpÓ £Np (cold chisel) BÏm. (Fig 1) (chrome venadiam steel) ùNnVlTh¥ÚdÏm.
£NXõu ÏßdÏ ùYhÓj úRôt\m B]Õ
YZdLUôL AßeúLôQUôL(hexagonal) ApXÕ
Gi úLôQUôL (octagonal) CÚdÏm. CRu
ùYhÓm ®°m× B]Õ L¥]lTÓjRlThÓ
TRl TÓjRlTh¥ÚdÏm.
£NpL°u ùTôÕYô] YûLLs (Common
types of chisels)
¡NpLs IkÕ (5) ùTôÕYô] YûLL[ôL
Es[].
• @l[ôh £Np (Flat chisel/RhûPVô] £Np)
• ¡WôvþLh £Np (Cross-cut chisel)
• AûWYhP êdÏ £Np (Half round nose chisel)
JÚ £Np Utßm Ñj§Vp ER®Vôp A§Ll • ûYW Øû] £Np (Diamond point chisel)
T¥Vô] EúXôLjûR ALtßm ùNVp,
• ùYl £Np (Web chisel)
ùNÕdÏRp G]lTÓm. ùNÕdLlThP TWl×
LWÓ ØWPôL CÚlTRôp ARû] @ûTXõe @l[ôh £Np (Flat Chisel) (Fig 3a)
(filing) ùNnÕ Ø¥Ü ùNnV úYiÓm. ùT¬V RhûPVô] TWl×L°p CÚkÕ
£NXõu TôLeLs (Parts of a Chisel) (Fig 2) EúXôLjûR ALt\ Utßm ùYpÓ
TiQlThP CûQl×Ls Utßm
úLv¥eÏL°p (welded joints and castings)
A§LlT¥Vô] EúXôLjûRf ùNÕdL CkR
YûL £Np TVuTÓ¡\Õ.
¡WôvþLh ApXÕ úLl £Npv (Fig 3b)
(Cross-cut or Cape chisels)
CûYLs ¸úYv (key ways) Y¬lTs[eLs
(grooves) Utßm Lô¥Ls (slots) ùYhÓYRtÏl
TVuTÓ¡u\].
AûW YhP êdÏ £NpLs (Fig 4) (Half round
nose chisels)
£Np B]Õ ¸rLiP TôLeLû[d
Yû[kR Y¬lTs[eLû[ (curved grooves) (oil
ùLôiÓs[Õ. RûXlTϧ, EPtTϧ
grooves) ùYhÓYRtÏ TVuTÓ¡\Õ.
Øû] ApXÕ ùYhÓm ®°m×.
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