A single point cuttingtool with 12o rake angle isused to machine a steel workpiece. The depth of cut - thatis - uncut thickness is 0.81mm. The chip thicknessunder orthogonal machiningcondition is 1.8 mm. Theshear angle is - approximately -

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A single point cuttingtool with 12o rake angle isused to machine a steel workpiece. The depth of cut - thatis - uncut thickness is 0.81mm. The chip thicknessunder orthogonal machiningcondition is 1.8 mm. Theshear angle is - approximately -