Manufacturing Science & Technology 2
MEC-206
Theory of Metal Cutting: Single point cutting tool nomenclature, geometry. Mechanics of Chip Formation Types of Chips. Merchant's 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. Cutting Tool Materials: Desired properties and types of cutting tool materials Cutting fluids and its desired properties, types and selection. Heat generation in metal cutting Factors affecting heat generation. Heat distribution in tool, work piece and chip Measurement of tool tip temperature.
Lathe, Shaper, Planer and Slotter: Classification, constructional features, work and tool holding devices General lathe, Turret and Capstan Lathe. Tool Layout, shaping Machine, Planing Machine Driving mechanisms of lathe, shaping and planing machine tools, Different operations on lathe, shaping machine, planing, slotting Problems on machining time calculations, thread cutting. Drilling: Classification, constructional features, drilling & related operations. Types of drill & drill bit nomenclature Basic principle of design of drill bits, drill materials, related problems.
Milling and Grinding: Classification, constructional features, milling cutters nomenclature, milling operations Up milling and down milling concepts. Various milling operations. Indexing Methods: Simple and compound. Problems on indexing and machining time calculation. Grinding: Selection of grinding wheel, Classification Constructional features of grinding machines (Centerless, cylindrical and surface grinding), Dressing and truing of grinding wheels. Broaching process: Principle of broaching, Applications, advantages and limitations. Finishing and other Processes Lapping and Honing operations – Principles, arrangement of set up and application. Super finishing process, polishing, buffing operation and application. Gear Manufacturing: Gear forming, gear generation, gear shaping and gear hobbing.
Jigs & Fixtures: Important considerations in jigs and fixture design. Main principles of designing of jigs & fixtures, elements of Jigs and fixtures. Different devices and methods of locations. Different types of clamps used in jigs & fixtures. Introduction to CNC machines‐ Principles of operation. Basics of Manual part programming methods. Non‐Traditional Machining: Need and classification of non‐traditional machining. Principle, equipment & operation of Electric discharge machining, Laser Beam Machining, Electro Chemical Machining Ultrasonic Machining, Abrasive Jet Machining, Water Jet Machining, Electron Beam Machining.