Technologies, Materials and Production Methods
From concept to production
Candidates must understand how materials and production methods influence design decisions, and how to select them against criteria such as function, cost, durability, aesthetics, sustainability and scale of production.
Concepts to know
- Material categories: paper and board, timber, metals, polymers, textiles, ceramics and glass, composites.
- Material properties: strength, weight, flexibility, durability, finish, workability, recyclability.
- Production methods: hand tools and craft processes; machining; casting and moulding; joining (welding, adhesives, fasteners); surface finishing.
- Scale: one-off, batch, mass production; how scale affects method choice.
- Digital technologies: CAD/CAM, laser cutting, 3D printing, CNC routing, vinyl cutting.
- Sustainability: renewable and recycled materials, energy use, waste, end-of-life.
Common traps
- Choosing materials for appearance only, ignoring function and manufacture.
- Confusing a process with a material (e.g. "plastic" as a process).
- Assuming digital production is always cheaper or better.
- Forgetting finishing and joining as part of production.
Rule of thumb
Justify each material and process with a criterion: "Recycled aluminium was selected for the frame because it is lightweight, corrosion-resistant and fully recyclable, and can be extruded at the required scale."
Worked example
A flat-pack shelf: plywood is chosen for strength-to-weight and consistent thickness; CNC routing ensures repeatable joints; knock-down fasteners allow flat packing; a water-based finish reduces emissions. Each choice answers a brief criterion.