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This lesson covers advanced manufacturing strategies including flexible manufacturing systems (FMS) and just-in-time (JIT) production. These concepts are part of AQA GCSE Design and Technology (8552), Section 3.1.1, and relate directly to how modern factories organise production for maximum efficiency.
Before studying manufacturing systems, you need to understand the different scales of production:
| Scale | Description | Example | Typical Cost per Unit |
|---|---|---|---|
| One-off (bespoke/prototype) | A single, unique product made to a client's specification | A wedding dress, a hand-crafted guitar | Very high |
| Batch production | A set number of identical products made together | 500 school chairs, a bakery producing 200 loaves | Moderate |
| Mass production | Thousands or millions of identical products on an assembly line | Cars, smartphones, soft drinks | Low |
| Continuous production | 24/7 manufacturing of a single product without interruption | Steel, paper, chemicals, electricity | Very low |
AQA Exam Tip: When asked to identify the most suitable scale of production for a given product, consider the quantity required, the complexity of the product and whether it needs to be customised. Justify your answer with a reason, not just a label.
A Flexible Manufacturing System is a production setup that can be quickly reconfigured to manufacture different products or product variants with minimal downtime.
| Component | Role |
|---|---|
| CNC machines | Programmable machines that can switch between tasks |
| Automated material handling | Conveyor systems, robotic arms and AGVs (Automated Guided Vehicles) move materials between stations |
| Central computer control | A master computer coordinates all machines and schedules production |
| Tool changers | CNC machines automatically swap cutting tools for different operations |
| Quality sensors | In-process inspection ensures defects are detected immediately |
| Advantage | Explanation |
|---|---|
| Quick changeover | Switching between products takes minutes rather than hours |
| Variety | One production line can manufacture multiple products |
| Responsiveness | Can react quickly to changes in customer demand |
| Efficiency | Machines are rarely idle because they can always be making something |
| Quality | Automated inspection reduces defects |
| Disadvantage | Explanation |
|---|---|
| Very high capital cost | FMS setups require expensive CNC machines, robots and software |
| Complex to manage | The central computer system must be expertly programmed and maintained |
| Limited by machine capability | FMS cannot make products outside the range of its installed machines |
| Skilled workforce | Technicians and programmers are needed, not just operators |
Just-in-Time (JIT) is a manufacturing strategy where components and materials are delivered to the factory exactly when they are needed — not before, not after. This eliminates the need for large warehouses full of stock.
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