Manufacturing And Production Technology
In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principle cutting edge angle is 90⁰, the shear angle in degree is

30.56
20.56
36.56
26.56

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Manufacturing And Production Technology
Which of the following statement is correct regarding grinding of high carbon steel?

Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
All of these
Aluminium oxide wheels are employed.
The grinding wheel has to be of open structure.

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