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It is required to cut screw threads of 2 mm pitch...

This question belongs to Mechanical Engineering Manufacturing And Production Technology
Manufacturing and Production Technology
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It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be

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Correct Answer: Option B
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3 Comments
Chithira Vinod
Chithira Vinod 5 years ago
N2/P2 = N1/P1
60/6 = N1/2
60 x 2 / 6 = 20 rpm
Vimala K
Vimala K 7 years ago
Speed of lead screw=Spindle speed*Pitch/P of lead screw.

= 60*2/6 = 20.
Venkatraman B
Venkatraman B 7 years ago
v=s/t
Here time t is constant
V1/S1=V2/S2
V2=60*2/6=20 rpm
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