Question
In a turning process using orthogonal tool geometry, a chip length of 100 mm is obtained for an uncut chip length of 250 mm.
The cutting conditions are cutting speed = 30 m/min. rake angle = 20°.
The shear plane angle is _________ degrees (round off to one decimal place).
Answer :
Correct answer is : 23.5
Given: Length of chip = 100 mm, Uncut chip length = 250 mm, Rake angle, α = 20°
Now,
∴ ϕ = tan-1 (0.4354)
∴ ϕ = 23.53°
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