Page 313 - Content.pmd

ERôWQm = 12 - 1.75/10
= 12mm - 0.175mm
M12 x 1.75ªÁ Gu\ UûW A[Ü
UûW«ÓûL«p ùY° UûW«P úYi¥V = 11.825 ApXÕ 11.8 mm. BL CÚdL úYiÓm.
ùTôÚ°u ®hPm 11.80.
T«t£ M16 x1.5 ùY°UûW«Pj úRûYVô]
ãj§Wm D = d - p/10 ùYtßÚû[ ®hPjûRd LQd¡ÓL

D - ùYtß EÚû[ ®hPm ®ûP
d þ UûWVô¦«u ®hPm .........................................................................................

p þ UûW ׬ A[Ü .........................................................................................

.........................................................................................
UûW AfûN TVuTÓj§ ùY°UûW ùYhÓm ®Rm (External Threading using
dies)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• UûW AfûNl TVuTÓj§ ùY°UûW ùYhÓRp.
ØRXõp ùY°UûW ùYhP úYi¥V ùNnØû\ Procedure
EÚû[«u êX A[ûYl T¬úNô§jÕ
Lôh¥Ùs[T¥ UûW AfûN, CÚj§«p (die
ùLôs[ úYiÓm.
stock) ùTôÚjR úYiÓm.
ãj§Wm
úUÛm UûW Af£u ØuTϧ UûW AfÑ
êX A[Ü (blank size) = UûW«u A[Ü (threads CÚj§«p Es[ T¥LhÓl TϧdÏ
size) 0.1x UûW ׬ A[Ü (pitch of thread) UßØû]«p CÚdÏUôß AûUdL
úYiÓm. (Figs 1a & 1b)

©¥j§ßd¡«p A§Ll ©¥Uô]m
¡ûPdL Tôpv RôûPLû[ TVu
TÓjRÜm.

UûWLs CP úYi¥V
T¦lùTôÚ°p GqY[Ü A[®tÏ
UûW«P úYiÓúUô úTôP
úYiÓúUô AkR A[®tÏ ûY³u
UhPjÕdÏ ùY°úV CÚdL
úYiÓm. (Fig 2)

292 £_õ & Gm: @©hPo (NSQF - Revised 2022) ------ R.T. for Ex. No.1.5.71