A Flexible Manufacturing System (FMS) is a highly automated production method that can adapt quickly to changes in product type, design, and production volume.
It combines automated machinery, a material handling system, and a central computer control to achieve a high degree of adaptability with minimal human intervention.
Core Components
An FMS is not a single machine but an integrated system of several key components working together.
- Workstations: These are the machines that perform the actual manufacturing operations, such as cutting, drilling, and assembly. They’re typically Computer Numerical Control (CNC) machines, which can be reprogrammed to perform a variety of tasks on different parts.
- Material Handling and Storage Systems: These systems transport parts and tools between workstations. They can include automated guided vehicles (AGVs), robotic arms, and conveyor belts. Their flexibility allows for different parts to be routed to different machines in various sequences.
- Central Computer Control: This is the “brain” of the FMS. It controls and coordinates all the other components. The software manages production scheduling, traffic control for the AGVs, tool management, and real-time monitoring of the entire system.
Advantages and Disadvantages
FMS offers significant benefits but also comes with notable drawbacks.
Advantages
- Increased Flexibility: The primary advantage is the ability to produce a wide variety of products or parts on the same system without significant downtime for retooling. This is ideal for manufacturing in smaller batches or for products with a high degree of customization.
- Reduced Labor Costs: Automation significantly reduces the need for direct labor on the factory floor, leading to lower operating costs.
- Higher Quality and Efficiency: The precision of automated machinery reduces human error, leading to more consistent, higher-quality products. It also allows for higher machine utilization and faster production cycles.
Disadvantages
- High Initial Cost: The capital investment required to purchase and install an FMS is substantial due to the sophisticated machinery, software, and integration required.
- Complexity: The systems are highly complex to design, program, and maintain. This requires a team of highly skilled technicians and engineers, which can add to labor costs.
- Dependence on Technology: The entire system relies on the central computer. A malfunction in the control system or a single component can shut down the entire production line.