2K6ME 506: MACHINE TOOLS

MODULE I (13 hours)
Basic Concepts of Machine Tools: General requirements of machine tools- tool- work motions on lathe, milling, drilling, shaping, slotting, planing and grinding machines- cutting speeds and feeds- estimation of machining time. Kinematics of Machine Tools: Selection of range of speeds and feeds- layout of speeds graphical representation of speed and structure diagram- ray diagram for machine tool gear boxes Machine Tool Drive: Stepped and step less regulation of speeds- feed and speed mechanisms in lathe, milling and drilling machines- gauging of components.
MODULE II (13 hours)
Cutting Tools: Geometry of cutting tools and tool nomenclature- single point and multipoint cutting tools- tools used for turning, milling, drilling and broaching- tool materials and their properties- grinding wheels and their selection. Production Lathes: Turret lathes- tools and attachments- operations and tools layout- automatic screw machine Metal Cutting: Mechanics of chip formation- types of chips- orthogonal and oblique cuttingvelocity relationships- cutting forces and factors affecting cutting forces- cutting force and power analysis- thermal aspects of machining- cutting fluids and their selection.
MODULE III (13 hours)
Machinability and Tool Life: Tool wear and tool life- tool life equations- tool life specifications and criteria- effect of machining parameters on tool life- variables affecting machinability -Economics of machining: Selection of optimum machining conditionsmachine law and tool law Jigs and fixtures: Basic principles- elements of jigs and fixtures- design principles common to jigs and fixtures.
MODULE IV (13 hours)
Press working: Different types of presses- principles of operation and selection- computation of capacities tonnage- center of pressure- cutting operations- shear action in die cutting operations- compound and progressive dies

Text Book and References

1. HMT, Production Technology, Tata McGraw Hill
2. Ghosh & Mallik, Manufacturing Science, Affiliated East-West Press
3. Juneja & Sekhon, Fundamentals of Metal Cutting and Machine Tools, Wiley Eastern
4. Sharma P C, A Text book of Production Engineering, S Chand & Company
5. ASTME, Fundamentals of Tool Design, Prentice Hall of India
6. Bhattacharya A, Metal Cutting: Theory and Practice, Central Book Publishers
7. Boothroyd, Fundamentals of Metal Machining and Machine Tools, McGraw Hill