OCTOBER 19-20, 2012 - YMCA University of Science & Technology

‣ Maximize the degree of efficiency
‣ Minimize the level of wastage of material
Proceedings of the National Conference on
Trends and Advances in Mechanical Engineering,
YMCA University of Science & Technology, Faridabad, Haryana, Oct 19-20, 2012
3.2 Environmental concerns
Some of the environmental concerns that are associated with JIT are given below:
‣ Time: Every action should be at time
‣ Inventory: Inventory should be as pr requirement
‣ Scrap: Scrap must be minimize
4. Types of flexibility of FMS
There are 11 types of manufacturing systems flexibilities as given below:
1. Machine flexibility: The number of operations performed without set-up of m/c change
2. Process Flexibility: The set of part types that can be produced without major set-up changes.
3. Transferring flexibility: Refers to flexibility in transferring various types and sizes of components.
4. Routing Flexibility: Flexibility in part chosen and transfer a part from one place to another.
5. Operation Flexibility: The different operation can done by interchanging m/c on work piece.
6. Product Flexibility: Ease to ordering product place in an existing product mix.
7. Actual Flexibility: It’s the ability to overcome concrete given changes.
8. Potential Flexibility: It refers to capability of coping with an undefined universe of change.
9. Volume Flexibility: The system should have economy of scope and not economy of scale.
10. Expansion Flexibility: The ease to capable, when needed, through physical change to operational system.
11. Control Program Flexibility: The capability to operate operation by intelligent machines tools and control
software system.
4.1 Basic components of FMS:
1. Computer controlled production equipment such as CNC machine.
2. Automated material handling and storage system for transferring parts.
3. Computer control to coordinate the activity of CNC machine and material handling.
4.2 Advantages of Flexible manufacturing system:
Following are the benefits of FMS:
1. Increase machine utilization
2. Increase production rate and Productivity
3. Increase quality of work
4. Reduce machine required
5. Reduce floor space requirement
6. Reduce inventory
7. Reduce lead time
8. Reduce direct labor requirements
9. Greater responsiveness to change
10. Opportunity for unattended production
4.3 Disadvantages of Flexible manufacturing system:
Following are the disadvantages of FMS:
1. FMS systems are too costly.
2. It is complicated than transfer lines.
3. Skilled persons are required to operate.
4. Skilled maintenance and repair of system required.
4.4 Applications of FMS:
The flexible automation is able to a variety of manufacturing operations. According to Yang, et al (2002), FMS
technology is most rapidly and widely applied in machining operations. FMS is the technology of the transfer lines
for high volume low variety work on the one side and stands alone CNC machines for mid to low volume high
variety production on the other side.
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