What is the tail offset required in lathe to produce a taper of 60° over a length of 0.2 m on a shaft of overall length of 1 m?

Question

Question

This question was previously asked in

ISRO MCF Technical Assistant Mechanical 23 June 2019 Official Paper

Answer 1

Concept:

Offset in tailstock is given by;

\(sin\frac{α}{2}=\frac{S}{L_w}\)

where, S = Tail offset, α = Taper angle, L_w = workpiece length,

Calculation:

Given:

α = 60°, Lw = 1 m,

\(sin(\frac{60}{2})=\frac{S}{1}\)

S = 1 × sin 30°

S = 1 sin 30°

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