PPT

1. CAE/CAM
AAEC29
Ms D . Karuna Kumari , Assistant Professor

2. Module-1: Introduction
• Computers in industrial manufacturing
• Product cycle, CAD/CAM Hardware
• Graphics coordinate system
• Database structure for graphics modelling
• Transformation of geometry
• Three dimensional transformations
• Mathematics of projections
• Clipping, hidden surface removal
Department of Aeronautical Engineering, IARE.

3. Computers in Industrial Manufacturing
• Role of computer in manufacturing can be broadly classified as
• Computer Monitoring and control of the manufacturing process.
• Computer is directly interfaced with manufacturing apparatus for monitoring and control
functions in manufacturing processes.
• Manufacturing support applications (actual and post manufacture operations)
• The support functions that computers can provide for the successful completion of
manufacturing operations.
Department of Aeronautical Engineering, IARE.

4. Influence of
Computers used
in Manufacturing
Environment
Department of Aeronautical Engineering, IARE.

5. Design Process
• Product Engineering
• Product functions
• Product specifications
• Conceptual design
• Ergonomics and Aesthetics
• Standards
• Detailed design
• Prototype development
• Testing and Simulation
• Analysis and Drafting
• Manufacturing Engineering
• Process Planning
• Tooling
• Manufacturing Information Generation
• Production Organization
• Marketing and Distribution
Department of Aeronautical Engineering, IARE.

6. Design Process
Department of Aeronautical Engineering, IARE.

7. Problem Identification
Department of Aeronautical Engineering, IARE.

8. Problem Definition
Department of Aeronautical Engineering, IARE.

9. Geometric Modelling
Department of Aeronautical Engineering, IARE.

10. Engineering Analysis
Department of Aeronautical Engineering, IARE.

11. Prototype Development
Department of Aeronautical Engineering, IARE.

12. Manufacturing Process Development
Department of Aeronautical Engineering, IARE.

13. Department of Aeronautical Engineering, IARE.
Computer
Assisted
Product
Life Cycle

14. Computer Aided Design (CAD)
• Computer aided design thus utilizes the computer as a tool for all functions
that are involved in the design process. The main functions that would utilize
the computer are
• Layout design for the overall assembly
• Individual component modelling
• Assembly modelling
• Interference and tolerance stack checking
• Engineering drawings
Department of Aeronautical Engineering, IARE.

15. Computer Aided Manufacturing (CAM)
We can broadly categorize the industrial manufacturing activity (for only
mechanical engineering industries, i.e., making discrete components) into the
following:
• Mass Production – large lots, e.g., Automobiles
• Batch Production – Medium lot sizes, e.g., Industrial Machines, Aircrafts, etc.
• Job-Shop Production-Small lots or one off, e.g., Proto types, Aircrafts, etc.
Department of Aeronautical Engineering, IARE.

16. Manufacturing Methods
Department of Aeronautical Engineering, IARE.

17. Computer Integrated Manufacturing
• Lean Manufacturing
• Methodologies that lead to the reduction of waste during mass manufacturing
operations.
• In this system, the products are manufactured as required and not for stocking. By
following this philosophy throughout the product cycle, it is possible to reduce the
amount of storage at each stage and thereby reduce a large amount of the hidden costs
in the final product.
Department of Aeronautical Engineering, IARE.

18. Computer Integrated Manufacturing
• Six Sigma
• Six Sigma was originally started as a defection reduction process, but progressed into a
comprehensive statistically based method to reduce variation.
• Six Sigma as ‘a data-driven method for achieving near-perfect quality.
• Six-Sigma analysis can focus on any element of production or service, and has a strong
emphasis on statistical analysis in design, manufacturing and customer-oriented
activities.’
Department of Aeronautical Engineering, IARE.

19. Department of Aeronautical Engineering, IARE.

20. Coordinate systems used in Graphics and
Windowing
Department of Aeronautical Engineering, IARE.

21. Department of Aeronautical Engineering, IARE.

22. Hidden Surface Removal
Department of Aeronautical Engineering, IARE.