Production Technology

Section - I Unit 1 - Theory of Metal Cutting (Chapter # 1) Cutting tool, Tool geometry, Concept of cutting variables, Cutting action and effect of these on cutting forces. Merchant’s circle of forces. Estimation of cutting forces. Machinability. Tool life, Tool wear, Economics of machining, Cutting fluids. Measurement of cutting forces by tool dynamometers, Cutting power estimation. Cutting tools : Design of single point, Form tool (Graphical method). Unit 2 - Broaching, Gear and Thread Manufacturing (a) Broaching (Chapter # 2) Introduction to broaching, Broach tool geometry, Types of broaching machines and operations. Numericals on broach design. (b) Gear Manufacturing (Chapter # 3) Different Gear manufacturing Methods : Gear hobbing, Gear shaping, Gear shaving, Gear finishing processes : Gear grinding and lapping. (c) Thread Manufacturing (Chapter # 4) Thread cutting, chasing and dies, milling, rolling. Thread finishing processes : grinding and lapping. Unit 3 - CNC Technology (Chapter # 5) Introduction and working of NC, CNC and DNC machines. CNC axis and drives, Introduction to automatic tool changer and automatic pallet changer. Principles and block diagram of machining centers, Advantages and applications. CNC programming for simple parts on lathe and drilling machines. Introduction of FMS. Section - II Unit 4 - Sheet Metal Working (Chapter # 7) Introduction to various sheet metal operations. Types of dies, accessories and punches for press working, materials for punches and dies. Die design for blanking, piercing, bending and drawing. Numericals on clearance analysis, centre of pressure, different forces, press tonnage, blank size, number of draws, strip layout, sheet utilization ratio, methods of reducing forces. Unit 5 - Non Conventional Methods of Machining (Chapter # 6) Introduction, Types of Non Conventional Methods of Machining, applications, working Principles, Process Parameters for : Chemical Machining, ECM, EDM, EBM, IBM, PAM, LBM, AJM and USM. Unit 6 - Principles of Jigs and Fixtures (Chapter # 8) Definitions, Elements of jigs and fixtures, Basic principles and guidelines for design. Types of jigs and fixtures. Locating devices - Types of locators and their selection. Clamping devices - Basic principles, Types and their selection. Power work holding devices, Jig bushes, Indexing methods, Modular fixture, Fabrication methods. Working drawings (two views) for design of simple components.