Year 9 Product Design Knowledge Organiser

Vocabulary practice flashcards covering vacuum forming processes, material properties, woods, metals, the 6 Rs of sustainability, and environmental impacts from the Year 9 Product Design Knowledge Organiser.

Former

The item to be vacuum formed.

Platen

Inside the vacuum former to put formers on. It is raised and lowered by the lever.

Draft angle

An angle that formers must have so they can be removed from the HIPS.

Webbing

A defect in vacuum forming that can occur if formers are too close together, too high, or the HIPS was not heated properly.

Thermoforming Polymers

Polymers that can be reheated and reshaped, and can be recycled. Examples include Acrylic, PVC, HIPS, HDPE, Styrofoam, and PET.

Hard

Able to withstand being dented (e.g., cast iron).

Tough / impact resistant

Able to withstand breaking on impact.

Thermal conductor

Allows heat to pass through e.g. metals such as copper.

Electrical conductor

Able to conduct electricity e.g. metals such as copper.

Insulator

Does not allow electricity or heat to pass through e.g. fabric, timbers, polymers.

Corrosion resistant

Able to resist corrosion (will not react with oxygen and water).

Malleable

Able to be permanently deformed in all directions without breaking.

Durable

Able to withstand deterioration over time.

Hardwoods

Timbers from deciduous trees that lose their leaves in winter. They produce expensive, close grained woods (e.g., oak, beech, ash, mahogany).

Softwoods

Timbers from coniferous trees that have needles and cones. They produce cheaper woods with lots of knots (e.g., cedar, pine).

Manufactured Boards

Boards that we make from scraps of other timbers e.g. MDF, chipboard, plywood.

Ferrous Metals

Metals which contain iron and will rust and will attract a magnet.

Non-ferrous Metals

Metals which contain DO NOT iron and will NOT rust and will NOT attract a magnet.

Alloys

Metals that are a mixture of two or more other metals or elements.

Reduce (6 Rs)

Use less (materials, energy, resources).

Reuse (6 Rs)

Use the product for a different purpose.

Recycle (6 Rs)

Reprocess the material to make a new product.

Rethink (6 Rs)

Find a better way (e.g. use different materials).

Repair (6 Rs)

Fix the product instead of throwing it away.

Refuse (6 Rs)

Don't buy / use something that is unsustainable.

Bauxite ore

The raw mineral ore extracted from the ground and processed by smelting or electrolysis to produce aluminium.

Renewable energy sources

Energy sources including Solar, Wind, Hydroelectric, Tidal, Biodiesel, and Biomass that are more environmentally friendly.