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AQA A-level Design & Technology / Product Design⌕ Search notes
AQA 7552   /   3.1.11

Ease of manufacture.

Design for manufacturing, maintenance, repair and disposal · Technical principles

Revision notes

2. Ease of manufacture

Ease of manufacture

Efficient manufacture is essential to reduce unit cost, improve consistency, and maximise product quality. Poor manufacturability increases labour time, error rates, and waste.

Ease of manufacture is achieved by:

Using modular designs with clearly defined sub-systems, allowing parallel manufacture, easier quality control, and fault isolation

Using standardised parts and sizes across product ranges to reduce tooling costs, simplify supply chains, and improve interchangeability

Using automated manufacturing processes (e.g. wave or reflow soldering) to improve speed, repeatability, and reliability compared with manual methods

Optimising factory layout using simulation software to reduce material handling, bottlenecks, and downtime

Reducing the number of manufacturing processes (A-level only)

Reducing the number of processes simplifies manufacture, lowers cost, and reduces production time. However, excessive simplification can reduce repairability and sustainability.

Strategies include:

Using single-process manufacture (e.g. injection moulding) instead of multiple forming, machining, and finishing stages

Selecting self-finishing materials (e.g. polymers) to eliminate secondary surface treatments

Reducing joining operations by incorporating integral fixings

Using ribs and webs to produce lightweight yet strong mouldings without increasing material volume

Integrating snap fits, screw posts, and textures directly into mould tools to reduce assembly stages

Buying components from specialist suppliers to benefit from economies of scale and expertise

Using adhesives instead of mechanical fasteners, improving aesthetics but often reducing repairability and recyclability

Choice of materials (manufacture-focused aspects)

Material choice directly affects a product’s manufacture, performance, maintenance, and end-of-life disposal.

Key considerations:

Materials are identified using standardised recycling codes, often moulded into products to aid separation

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