Question

Total Point 6 Problem-2 and maximum diameters of 100 mm and 200 mm at opposite ends. Automatic controls on the lathe A tap permit the surface speed to be maintained at a constant value of 200 m/min by adjusting the rotational speed as a function of workpiece diameter. Feed - 0.25 mm/rev, and depth of cut 3.0 mm. The rough geometry of the piece has already been formed, and this operation will be the final cut. Determine (a) the time required to turn the taper and (b) the rotational speeds at the beginning and end of the cut (assume cutting starts at the smaller diameter). ic lathe. The workpiece is 550 mm long with minimum Area of the tapered surface is given by A (R2 +R(l2+ (R2 - R1)2)o5

Answer 1