flexible manufacturing system (fms)
TRANSCRIPT
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Flexible Manufacturing
System.PRASANNA DAE.,BE(Auto).,ME (Manufacturing Engg)
TamilNadu MaduraiINDIA
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What is FMS ???• A flexible manufacturing system is a automated machine cell, consisting of a group of processing workstations, interconnected with automated material handling and storage system.• The FMS is most suited for
the mid-variety, mid-volume production range
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Why FMS ?• External changes such as change in product
design and production system.•Optimizing the manufacturing cycle time•Reduced production costs •Overcoming internal changes like breakdowns
etc.
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What makes it flexible???• Three capabilities that a manufacturing system
must possess to be a flexible.1.The ability to identify and distinguish among the
different part styles processed by the system.2.Quick changeover of operating instructions, and3.Quick changeover of physical setup.
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Tests of Flexibility….To qualify as being flexible, a manufacturing system should satisfy several criteria. The following are four reasonable tests of flexibility in an automated manufacturing system:
Part variety testSchedule change testError Recovery testNew part test
If the answer to all of these questions is “YES” for a given manufacturing system, then the system can be considered flexible.
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Basic components of FMS
•Workstations• Automated Material Handling and Storage systems• Computer Control System
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Workstation• Substations1. Load/Unload Stations2. Machining Stations (Milling Machines ,Turning Machines
,etc.,)3. Other processing stations
(Punching,shearing,welding,Bending,Forming) 4. Assembly Stations (Robots)5. Other stations and equipments(Inspection,Vision, etc.,)
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Material handling systemSubstations1. Independent movement of workparts between
stations.2. Handle variety of parts3. Temporary storage4. Convenient for loading and unloading
workparts
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Material handling system
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Computer controlled system
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Computer controlled system• FMS includes a distributed computer system that is interfaced to
1.Workstations2.Material handling system3.Other Hardware components. A typical computer system consists of central computer and Micro
computers1.Microcomputers controling the individual machines and other
components2.The central computer coordinates the activities of the components
to achieve smooth overall operation of the system.
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Number of Machines• Flexible manufacturing systems can be
distinguished according to the number of machines in the system. The following are typical categories:
Single machine cell Flexible manufacturing cell Flexible manufacturing system
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Number of Machines
Single Machine cell (SMC)
Flexible Manufacturing Cell
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Flexible Manufacturing System (FMS)• A flexible manufacturing system has
four or more processing workstations connected mechanically by a common part handling system and electronically by a distributed computer system.
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Allied Signal’s Flexible Manufacturing System
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Application of FMS• Metal-cutting machining• Metal forming• Assembly• Joining-welding (arc , spot), gluing• Surface treatment• Inspection• Testing
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Advantages of FMS• To reduce set up and queue times• Improve efficiency• Reduce time for product completion• Utilize human workers better• Improve product routing• Produce a variety of Items under one roof• Improve product quality• Serve a variety of vendors simultaneously• Produce more product more quickly
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Disadvantages of FMS
•Expensive.•Substantial pre-planning activity.
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Challenges with FMS
•Determining if FMS the best production system for your company
•Possible expansion costs associated with implementing FMS
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Conclusion •FMS is a revolution in the field of Manufacturing Technology.•FMS can be designed to meet the specific demand of each company•FMS is used for multitask operation.•FMS requires substantial investment of time and resources.
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Thank you…