By the end of this unit you should have developed a knowledge and understanding of:

• the use of computer aided design (CAD) to develop and present ideas for products

• how computer aided manufacturing (CAM) is used in the manufacture of products

• virtual modelling/testing procedures used in industry

• rapid prototyping processes and additive technologies

• the use of EPOS for marketing purposes and collection of research data

• the role of production, planning and control (PCC) systems in the planning and control of all aspects of manufacturing

Summary

• Computer Aided Design (CAD) involves using computers to generate 2D or 3D drawings and models. Modern software is very advanced and can produce photorealistic images and animations.

• Computer Aided Manufacture (CAM) uses CAD equipped computers connected to advanced manufacturing machines which accept Computer Numerical Control (CNC). These machines perform the operation sent from the computer program.

• Computer Integrated Manufacture (CIM) brings the various elements of the design process together under computer control. It can also refer to the central computer and systems that organize scheduling and materials ordering etc.

• Computer Aided Engineering (CAE) is the use of computers to test components prior to manufacturing. Examples can be seen in the car industry where computer models are tested under simulated loads. It is also used to test structures in civil engineering and architecture.

Revision notes for this section

• Ensure you are familiar with the range of modern production techniques in this section

• You should be familiar with a range of 2D and 3D CAD systems and their possibilities.

• You should also have used some CNC controlled machinery and understand how they work together.

• You should understand how CAD and CAM work together and be familiar with at least one parametric CAD package.

• These systems also rely on digital production planning and tracking of components throughout the process.

• You should know what rapid prototyping is and the processes available. These will also help you to prototype your own outcomes for the NEA or major project.