A Flexible Manufacturing System (FMS) is a production system consisting of a set of identical and/or complementary numerically controlled machine whic...
this is the report made on mahua biodiesel the project aim at improving the performance of the diesel engine and reducing the emissions from the vehicle so to decrease the global warming ef…Full description
ഉഇFull description
seminar report on composite materials
multi level inverterFull description
Report on "multi-functional jali''
CFRP
Full description
introduction,need of multicoreprocessors etc.Full description
Non-Destructive Testing Techniques using EDDY CURRENT METHOD
MECHANICAL SEMINAR REPORTFull description
report on airtel money
WHAT IS FLEXIBLE MANUFACTURING SYSTEM?
FMS consists of a group of processing work stations interconnected by means of an automated material handling and storage system and controlled by integrated computer control system.
FMS is called flexible because it is capable of processing different work parts simultaneously at the workstation and quantities of production can be adjusted with respect to demand patterns.
FLEXIBILITY MEANING A manufacturing system must possess these three capabilities in order to be flexible:
The ability to identify and distinguish among different incoming part processed by the system.
Quick changeover of operating instructions.
Quick changeover of physical setup.
BASIC COMPONENTS OF FMS a) Workstations: Workstations are computer numerical control (CNC) machine tools that perform machining operation on work parts.
The various workstations are:
Machining centers
Load and unload stations
Assembly work stations
Inspection stations , etc.
b) Automated Material Handling and Storage system: These are used to transport work parts and subassembly parts between the processing stations.
Functions:
Handling a variety of work part configurations.
Temporary storage.
Convenient for loading and unloading of work parts.
c) Computer Control System: It is used to coordinate the activities of the processing stations and the material handling system in the FMS.
Functions:
Control of each work station.
Distribution of control instruction to work stations.
Production control.
Traffic control.
TYPES OF FMS Flexible manufacturing systems can be distinguished according to the number of machines in the system, they are a) Single machine cell b) Flexible manufacturing cell c) Flexible manufacturing system a) Single Machine Cell: It consists of one CNC machining centre combined with a parts storage system for unattended operation. The cell can be divided to operate in a batch mode, a flexible mode, or a combination of both. b) Flexible manufacturing cell(FMC): It consists of two or three processing work stations combined with a part handling system. The part handling system is connected to a load/unload station. The handling system usually includes a limited parts storage capacity. c) Flexible manufacturing system (FMS): It has four or more processing stations connected mechanically by a common parts handling system and electronically by a distributed computer system.
TYPES OF FMS LAYOUT
The different types of FMS layouts are: a) In-line type b) Loop type c) Ladder type d) Open-field type e) Robot- centered type
Work flow-one direction
Work in
Work out
PROC
PROC
PROC
PROC
PROC
AUT
AUT
AUT
AUT
AUT
Basic in-line configuration with one directional work flow
Work flow-both directions
LOAD UNLD MAN PROC
PROC
PROC
PROC
PROC
AUT
AUT
AUT
AUT
AUT
In-line with transfer at workstations to allow back flow on primary handling system
Inline Configuration
PROC
PROC
PROC
AUT
AUT
AUT
Work flow
LOAD
PROC
PROC
PROC
AUT
AUT
AUT
LOOP CONFIGURATION
Work flow
PROC LOAD UNLD MAN
AUT
PROC
PROC
PROC
AUT
AUT
AUT
LADDER CONFIGURATION
OPEN-FIELD CONFIGURATION
ROBOT-CENTERED CONFIGURATION
CHALLENGES WITH FMS
Determining if FMS is the best production system for your company (economically and socially)
High costs associated with implementing FMS
Day to day maintenance of FMS operations
AIMS OF FMS The principle Aims of FMS are:
To reduce costs.
To Decrease Lead Times.
To Increase machine utilization.
To Decrease Work in Progress.
Better utilization of the production equipment.
Reduction of piece part unit costs.
To increase Technical Performance.
Shorter lead times/delivery times.
Determination of production capacities.
To increase quality.
ADVANTAGES OF USING FMS
To reduce set up and queue times
Improve efficiency
Reduce time for product completion
Utilize human workers better
Produce a variety of Items under one roof
Improve product quality
Produce more product more quickly
DISADVANTAGE OF USING FMS
Limited ability to adapt to changes in product or product mix
Expensive, costing millions of dollars
Sophisticated manufacturing systems
CONCLUSION
We can concluded that it is system, which reduces the manual work with the help of automation.
It is also help us to understand the concept of automation as it is the requirement of today globalize world.
By using the flexible manufacturing system we can save 65 to 75% time over general manufacturing system.
Flexible Manufacturing System improve the quality of product by maximum utilization of equipments and resources at minimum cost.
