Single point cutting tool nomenclature, geometry, Merchants circle diagram and analysis, Ernst Merchant’s solution, shear angle relationship, problems of Merchant’s analysis, tool wear and tool failure, tool life, effects of cutting parameters on tool life, tool failure criteria, Taylor’s tool life equation, problems on tool life evaluation.
Desired properties, types of cutting tool materials – HSS, carbides coated carbides, ceramics cutting fluids. Desired properties, types and selection. Heat generation in metal cutting, factors affecting heat generation. Heat distribution in tool and W/P. Measurement of tool tip temperature.
Classification, constructional features of turret and capstan lathe, tool layout, shaping m/c, planning m/c, driving mechanisms of lathe, shaping and planning machines, operations on lathe, shaping machine and planning machine.
Classification, constructional features, drilling & related operations, types of drill & drill bit nomenclature, drill materials.
Milling machines: Classification, constructional features, milling cutters nomenclature, milling operations, up milling and down milling concepts. Indexing: Simple, compound, differential and angular indexing calculations. Simple problems on simple and compound indexing.
Types of abrasives, bonding process, classification, constructional features (cylindrical and surface grinding), selection of grinding wheel.
Principles of operation, construction, applications.
Principle, need, equipment, operation and LBM, plasma arc machining, Electro chemical machining, ultrasonic machining, abrasive let machining, water jet machining.