With a neat sketch, explain the 4 types of Taper turning operations

Calculate the feed rate for a two-flute 1/ 4@in.-diameter carbide end mill to machine low-carbon steel.

A turning operation is performed on C1008 steel (a ductile steel) using a tool with a nose radius= 1.3 mm. Cutting speed = 61 m/min and feed = 0.27 mm/rev. Compute an estimate of the surface roughness in this operation. (Hint: the ratio of actual to ideal roughness can be read on the figure below) Equations used; Ra Ri Actual Ratio Theoretical 32NR = rai Ri 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0 Ductile metals Cast irons Free machining alloys. 100 30.5 200 Cutting speed-ft/min 61 Cutting speed - m/min 300 91.5 400 122

Calculate the Material Removal Rate of a round bar with diameter 26 mm, is being reduced in diameter to 22 mm by a Turning Process. The feed is 0.24 mm/rev, spindle rotation speed is 22 rev/min? (TWO decimals) (Please note the values may change between each attempt!)