Option C: CAD/CAMC6 - Materials

Identify the characteristics of materials that make them appropriate for CAM.

Warping Stable Porous Uniform grain structure.

Explain that some materials require lubrication for effective CAM.

Quality of finish Tool wear Expansion.

Compare CAM to more traditional manufacturing techniques.

Consider…› Initial investment› Training› Working environment› Flexibility› Communication› Wastage.

Explain how CAD/CAM has improved quality assurance.

Repeatable quality and a reduction in the amount of tolerance.

Identify a range of suitable materials that could be used for modelling purposes in a CAM system.

Modelling wax, high-density foam, manufactured board and card.

Discuss the issues associated with using Medium Density Fibre Board (MDF) as a modelling material in a CAM system.

Consider health and safety, tooling, feed speed and surface finish.

Discuss how modelling wax can be used in a CAM system to aid jewellery production.

Modelling wax can be machined by CNC and then used to produce a master for lost wax casting.

Discuss the issues associated with using metals in a CAM system.

Consider feed speed, depth of cut, coolant and tooling.

Outline how surface modellingtechniques let consumers test before they buy.

Changes of colour and texture give a better aesthetic view of what a product may look like.