Manufacturing And Production Technology
In machining metals, surface roughness is due to

Feed marks or ridges left by the cutting tool
Fragment of built-up edge on the machined surface
Cutting tool vibrations
All of these

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Manufacturing And Production Technology
The lip angle is the angle

Made by the face of the tool and the plane parallel to the base of the cutting tool
Between the tool face and the ground end surface of flank
None of the listed here
Between the face of the tool and a line tangent to the machined surface at the cutting point

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