Manufacturing And Production Technology
Flank wear depends upon the

Amount and distribution of hard constituents in the work material
Hardness of the work and tool material at the operating temperature
Degree of strain hardening in the chip
All of these

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Manufacturing And Production Technology
Side relief angle of a single point tool is the angle

Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
By which the face of the tool is inclined sideways
Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
By which the face of the tool is inclined towards back

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