Milling operations-types of milling cutter. UNIT III SHAPER, MILLING AND GEAR CUTTING MACHINES Capstan and turret lathes- tool layout – automatic lathes: semi automatic – single spindle : Swiss type, automatic screw type – multi spindle: Mechanics of chip formation, single point cutting tool, forces in machining, Types of chip, cutting tools– nomenclature, orthogonal metal cutting, thermal aspects, cutting tool materials, tool wear, tool life, surface finish, cutting fluids and Machinability.Ĭentre lathe, constructional features, specification, operations – taper turning methods, thread cutting methods, special attachments, machining time and power estimation.
