JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-requisites

None

Course objectives: To provide an overview of how computers are being used in design, development of manufacturing plans and manufacture. To understand the need for integration of CAD and CAM

Course Outcomes:

• To apply geometric transformation techniques in CAD.
• Develop mathematical models to represent curves and surfaces.
• Model engineering components using solid modeling techniques.
• Develop programs for CNC to manufacture industrial components.

UNIT - I

Fundamentals of CAD, CAM, Automation, design process, Application of computers for design, Benefits of CAD, Computer configuration for CAD applications, Computer peripherals for CAD, Design workstation, Graphic terminal, CAD software- definition of system software and application software, CAD database and structure. Geometric Modeling: 3-D wire frame modeling, wire frame entities and their definitions, Interpolation and approximation of curves, Concept of parametric and non-parametric representation of curves, Curve fitting techniques, and definitions of cubic spline, Bezier, and B-spline.

UNIT - II

Surface modeling: Algebraic and geometric form, Parametric space of surface, Blending functions, parametrization of surface patch, Subdividing, Cylindrical surface, Ruled surface, Surface of revolution Spherical surface, Composite surface, Bezier surface. B-spline surface, Regenerative surface and pathological conditions. Solid Modelling: Definition of cell composition and spatial occupancy enumeration, Sweep representation, Constructive solid geometry, Boundary representations.

UNIT - III

NC Control Production Systems: Numerical control, Elements of NC system, NC part programming: Methods of NC part programming, manual part programming, Computer assisted part programming, Post Processor, Computerized part program, SPPL (A Simple Programming Language). CNC, DNC and Adaptive Control Systems.

UNIT - IV

Group Technology: Part families, Parts classification and coding. Production flow analysis, Machine cell design. Computer aided process planning: Difficulties in traditional process planning, Computer aided process planning: retrieval type and generative type, Machinability data systems. Computer aided manufacturing resource planning: Material resource planning, inputs to MRP, MRP output records, Benefits of MRP, Enterprise resource planning, Capacity requirements planning

UNIT - V

Flexible manufacturing system: F.M.S equipment, FMS layouts, Analysis methods for FMS benefits of FMS.

R19 M.Tech. Production Engineering

Computer aided quality control: Automated inspection- Off-line, On-line, contact, Non-contact; Coordinate measuring machines, Machine vision. Computer Integrated Manufacturing: CIM system, Benefits of CIM

TEXT BOOKS:

• 1. CAD/CAM Principles and Applications by P.N. Rao, TMH
• 2. CAD/CAM Concepts and Applications by Alavala, PHI

REFERENCE BOOKS:

• 1. CAD/CAM by Groover M.P., Pearson education
• 2. CAD/CAM Theory and Practice/ Ibrahim Zeid, TMH
• 3. CAD/CAM/CIM by Radhakrishnan and Subramanian, New Age
• 4. Principles of Computer Aided Design and Manufacturing by Farid Amirouche, Pearson.
• 5. Computer Numerical Control Concepts and programming by Warren S Seames, Thomson. R19 M.Tech. Production Engineering M. TECH. I Year II Sem. (PRODUCTION ENGINEERING)