Shri Ramdeobaba College Of Engineering And Management

Department of Mechanical Engineering

“FLEXIBLE MANUFACTURING SYSTEM”By

Anand Khare(5M1-23)

Guided byBHUSHAN C. BISSA

Introduction to FMS History of FMS Why FMS ? Basic components of FMS FMS equipment Types of FMS Layouts of FMS Flexibility in FMS Applications of FMS Advantages Disadvantage Challenges with FMS Conclusion References

CONTENTS

A flexible manufacturing system is a automated machine cell, consisting of a group of processing workstations, interconnected with automated material handling and storage system.

What is FMS ?

The first FMS was patented in 1965 by Theo Williamson who made numerically controlled equipment. Examples of numerically controlled equipment are like a CNC lathes or mills which is called varying types of FMS.

History of 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.

Why FMS ?

Workstations Automated Material Handling and Storage systems Computer Control System

Basic components of FMS

Substations1. Load/Unload Stations2. Machining Stations3. Other processing stations4. Assembly

Workstation

AGV

Material handling system

Computer controlProgrammable logic Controller

Allied Signal’s Flexible Manufacturing System

A 5 machines FMS for machining:-photo courtesy of Cincinnati Milacron

Sequential FMS Random FMS Dedicated FMS Engineered FMS

Types of FMS

Progressive or Line Type Loop Type Ladder Type Open field type Robot centered type

Layouts of FMS

1.Progressive Layout

2. Loop Layout

3.Ladder Type Layout 4.Open Field Layout

5. Robot Centered Layout

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.

Flexibility in FMS

• To be flexible, a manufacturing system must posses the following capabilities:

Identification of the different production units to perform the correct operation.

Quick changeover of operating instructions. Quick changeover of physical setups of fixtures, tools and

other working units.

Continue…..

Metal-cutting machining Metal forming Assembly Joining-welding (arc , spot), glueing Surface treatment Inspection Testing

Application of FMS

FMS at Vought Aircraft

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

Advantages of FMS

Expensive. Substantial pre-planning activity.

Disadvantages of FMS

Processing of Gear 1 by Conventional Manufacturing System.

Processing of Gear 2 by Flexible Manufacturing System

The processing of Gear by FMS saves approximately 100 seconds per gear including pre & post processing adjustments. This means if number of gears to be produced increases this will save lot of time and increase productivity of the manufacturer. This will help in earning more profit. Hence FMS is more beneficial than conventional manufacturing system.

Comparison

Determining if FMS the best production system for your company

Possible expansion costs associated with implementing FMS

Challenges with FMS

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.

Conclusion

Technical Papers: Guixiu Qiao, Robert Lu, CharlesMclean: “Flexible manufacturing system

for mass customization manufacturing”, International Journal of Flexible Manufacturing Systems, Volume 14, pp173-187. .

Jim Browne, Didier Dubois, Keith Rathmill, Suresh P. Sethi, Kathryn E. Stecke :“Classification of FMS”, International Journal of Flexible Manufacturing Systems,Volume 13, Issue 4,Paper No. 367, pp 114-117, (1984).

Antonio Grieco, Quirico Semeraro, Tullio Tolio: “A Review of Different Approaches to the FMS Loading Problem”, International Journal of Flexible Manufacturing Systems,Volume 13, Issue 4, pp 361-384, October 2001.

References

Books Referred: M.P. Groover: “Automation Production System and Computer Integration

Manufacturing”, Prentice-Hall of India Private Limited,2008,Pg.No.:538-560.

R.K. Jain: “Production technology”, Khanna Publications, 2009, Pg.No.:962-974.

Case study: Ajay Singholi, Deepti Chhabra, Sampada Bagai: “Performance Evaluation

and Design of Flexible Manufacturing System”, Global Journal of Enterprise Information System, Volume 2, Issue 1, pp 24-34, 2010.

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