Unit 3-D Flashcards
What are the advantages of CAM products?
Complex shapes can be made
Unparalleled accuracy
Consistent repetition of shapes for batch or mass
Increased speed of production
What are examples of CNC machines?
Laser cutter
CNC lathe
CNC router
CNC miller
3D printers
What technology is needed for CAM?
(CAD) Computer aided design
(CNC) Computer numerical control machines
What is CIM?
Computer integrated manufacturing
What is CIM?
Planning, execution, inspection and monitoring of all components from raw materials to finished products is done using computers.
What are the issues with CIM?
It is very expensive to set up full digital control
What are the subsystems of CIM?
Business planning and support
Product design
Manufacturing process planning
Process automation and control
Production monitoring systems
What categories do the subsystems of CIM fit in to?
Business-planning
Business-execution
What falls under the business-planning half of CIM processes?
Forecasting
Scheduling
Material requirements planning
Invoicing
Accounting
What falls under the business-execution half of CIM processes?
Production and process control
Material handling
Testing
Inspection
What are the benefits of CIM?
Emphasis on product quality
Efficient use of materials
Total control
Responsiveness
How has CAD/CAM changed the design process?
Allowed concurrent engineering
Reduced the product lead times
What is concurrent engineering?
Overlap of concept design and design for manufacture
What was the traditional approach to design and what were the downsides?
“Over the wall”
Design carried out with no reference to manufacturing
What is FEA?
Finite element analysis
What are example uses of FEA?
Structural analysis
Fluid flow
Heat transfer
Modelling injection moulding
What is PPC?
Product planning and control – coordination of time and physical resources in the most economical and efficient way to reach pre-defined production goals
