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Concept
Flexible manufacturing system
Summary
A flexible manufacturing system (FMS) is a manufacturing system in which there is some amount of flexibility that allows the system to react in case of changes, whether predicted or unpredicted.
This flexibility is generally considered to fall into two categories, which both contain numerous subcategories.
The first category is called as routing flexibility, which covers the system's ability to be changed to produce new product types, and ability to change the order of operations executed on a part.
The second category is called machine flexibility, which consists of the ability to use multiple machines to perform the same operation on a part, as well as the system's ability to absorb large-scale changes, such as in volume, capacity, or capability.
Most flexible manufacturing systems consist of three main systems:
The work machines which are often automated CNC machines are connected by
By a material handling system to optimize parts flow and
The central control computer which controls material movements and machine flow.
The main advantages of a flexible manufacturing system is its high flexibility in managing manufacturing resources like time and effort in order to manufacture a new product.
The best application of a flexible manufacturing system is found in the 'production of small sets of products like those from a mass production.
Reduced manufacturing cost
Lower cost per unit produced,
Greater labor productivity,
Greater machine efficiency,
Improved quality,
Increased system reliability,
Reduced parts inventories,
Adaptability to CAD/CAM operations.
Shorter lead times
Improved efficiency
Increase production rate
Initial set-up cost is high,
Substantial pre-planning
Requirement of skilled labor
Complicated system
Maintenance is complicated
Flexibility in manufacturing means the ability to deal with slightly or greatly mixed parts, to allow variation in parts assembly and variations in process sequence, change the production volume and change the design of certain product being manufactured.
Official source
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