SQA National 5 Design and Manufacture: the Manufacture area - materials, processes, commercial manufacture and sustainability
A deep-dive SQA National 5 Design and Manufacture guide to the Manufacture area. Covers material categories and properties, named timbers, metals and plastics, manufacturing processes and tools, commercial scales of production with jigs and CAM, sustainability and the product life cycle, and the teacher-assessed practical assignment.
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What the Manufacture area actually demands
The Manufacture area is the second area of National 5 Design and Manufacture. It teaches materials - their categories, properties and named examples - and how products are made, from hand processes to industrial production, plus sustainability. The question paper tests this directly, and the teacher-assessed practical assignment asks you to plan and make a prototype. Each topic has its own dot-point page with worked questions; this guide ties them together.
Materials and their properties
Products are made from timbers, metals and polymers (plastics). A material is chosen for its properties: mechanical properties (strength, hardness, toughness, elasticity, malleability, ductility) describe behaviour under force, and physical properties (density, conductivity, durability, corrosion resistance) describe the material itself. The exam skill is matching a named property to a product's demand.
Named timbers, metals and plastics
Timbers are natural (hardwoods like oak; softwoods like pine) or manufactured boards (MDF, plywood, chipboard). Metals are ferrous (contain iron and rust, e.g. mild steel) or non-ferrous (no iron, do not rust, e.g. aluminium, copper, brass). Plastics are thermoplastics (reshape with heat, e.g. acrylic, polypropylene, ABS) or thermosetting plastics (set hard permanently, e.g. urea formaldehyde).
Processes, tools and commercial manufacture
Making a product runs through marking out, wasting/cutting, shaping, forming (line bending, vacuum forming), fabrication/joining (adhesives, fixings, knock-down fittings, welding) and finishing. In industry, the scale of production (one-off, batch, mass) is matched to the quantity needed, and jigs, templates, moulds, CAM and automation keep products consistent and fast to make.
Sustainability
A product has a life cycle (raw materials, manufacture, distribution, use, disposal/re-use), each stage with an environmental impact. Designers reduce impact using the 6 Rs: reduce, reuse, recycle, refuse, rethink and repair, applied mainly at the design stage.
How the Manufacture area is examined
A typical SQA profile for the Manufacture area:
- Matching materials to needs. Choose a material and justify it by a named property.
- Describing processes accurately. Name the tool or process and describe how it works, step by step.
- Reasoning about industry and the environment. Explain why a scale of production or a sustainability strategy suits a product.
Check your knowledge
A mix of recall and reasoning questions covering the Manufacture area. Attempt them, then check against the solutions.
- Name the three main categories of material. (1 mark)
- State the difference between a ferrous and a non-ferrous metal. (1 mark)
- Name two thermoplastics. (1 mark)
- State the three scales of production. (1 mark)
- Name the 6 Rs of sustainability. (2 marks)