Cad and cam

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Cad and cam

  1. 1. CAD/CAM/CIM Presented by N.N.V. Krishna kanth I MBA ALIET
  2. 2. • Design is the human power to conceive, plan, and realize products that serve human beings in the accomplishment of any individual or collective purpose. What is Design?
  3. 3. CAD • An electronic system using computers for designing new parts or products or for modifying existing ones. • Computer-aided design (CAD) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design.
  4. 4. Introduction of CAD • CAD consit’s of a powerful desktop computer and graphics software that enables designer to manipulate geometric shapes. • It replaces the traditional drafting work done by a draftsman on a drafting board.
  5. 5. Advantages of CAD • Saves time and money. • Eliminates prototype model building to prove the designs. • Allows designers to determine costs and test such variables as stress, tolerance, product variability, interchangeability and serviceability. • Low cost of design. • Eliminates manual drafting completely. • Easy to manipulate. • Makes review of numerous options in designs possible before final commitments are made. • Faster development, better products and accurate flow of information to other departments. • Product cost can be determined at the design stage itself.
  6. 6. CAM • Computer-aided manufacturing (CAM) is the use of computer systems to plan, manage, and control the operations of a manufacturing plant through direct or indirect computer interface with plant’s resources. • When CAD information is translated into instructions for CAM the result of these two technologies is referred to as CAD/CAM system.
  7. 7. DATABASE Geometric modeling Analysis Kinematic Automated drafting NC/CNC machines Robotics Computer aided process planning Factory management CAD CAM • NC – Numerical Control • CNC – Computer Numerical control CAD/CAM System
  8. 8. Need for CAD/CAM • To increase productivity of the designer • To improve quality of the design • To improve communications • To create a manufacturing database • To create and test tool paths and optimize them • To help in production scheduling and MRP models • To have effective shop floor control
  9. 9. CIM • Computer Integrated Manufacturing is a system which acts as a bridge or umbrella to integrate product design and engineering, process planning and manufacturing using computer systems.
  10. 10. Management Information System (MIS) Production/ Operations Management (POM) Top Management Computer Aided Design (CAD) Robots Automated Storage and Retrieval System (ASRS) and Automated Guided Vehicles (AGVs) Computer Aided Manufacturing (CAM)
  11. 11. Tools of CAD/CAM • AutoCAD (CAD) – Computer Aided Design or Computer Aided Drafting – For 2D and 3D design and drafting, developed and sold by Autodesk, Inc. in 1982 – Earlier primitive entities used such as lines, poly lines, circles, arcs, and text – But now it has solid modeling and 3D tools – Has supported custom objects through its C++ API – Application Programming Interfaces (APIs) for customization and automation – Include AutoLISP, Visual LISP, VBA, .NET and ObjectARX
  12. 12. AutoCAD
  13. 13. CATIA (CAD/CAM/CIM): – Computer Aided Three-dimensional Interactive Application – By the French company Dassault’s Systems – Created in the late 1970s and early 1980s to develop Dassault's Mirage fighter jet – Adopted in the aerospace, automotive, shipbuilding, and other industries
  14. 14. CATIA • Modules of CATIA – Product Structure – Part Design – Assembly Design – Sketcher – Drafting (Interactive and Generative) – Wireframe and Surface – Freestyle Shaper – Digital Shape Editor – Knowledge ware – Photo Studio – 4D Navigator (including kinematics) – Manufacturing – Finite Element Analysis
  15. 15. DELCAM (CAD/CAM), EDGECAM (CAM), Work NC (CAM):
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