Orthogonal turning of a mild steel tube with a tool of

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Orthogonal turning of a mild steel tube with a tool of rake angle 10° carried out at a feed of 0.14 mm/rev. If the thickness of the chip produced is 0.28 mm, the values of shear angle and shear strain will be respectively

1. 28°20'and 2.19
2. 22°20' and 3.53
3. 24°30' and 3.53
4. 37°20' and 5.19

Correct Option: A

r =	0.14	= 0.5
	0.28

tanΦ =	r cos α
	1 - rsin α

∴ Φ = 28.3345º or 28º 20'