Question: The rake angle of a cutting tool is 15°, shear angle 45° and cutting velocity 35m/min. What is the velocity of chip along the tool face? [ISRO 2009] Answer: Three velocity terms namely cutting velocity (VC), chip flow velocity (Vf) and shear velocity (VS) are associated with orthogonal machining of ductile material using a sharp cutting tool. These three velocity terms together constitute a vector triangle, which is also