Ease of manufacture.
Design for manufacturing, maintenance, repair and disposal · Technical principles
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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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