Date post: | 05-Apr-2018 |
Category: |
Documents |
Upload: | anis-badshah |
View: | 228 times |
Download: | 0 times |
of 19
7/31/2019 Flexible Manufacturing Systems1.
1/19
Click to edit Master subtitle style
Flexible Manufacturing Systems(FMS)
7/31/2019 Flexible Manufacturing Systems1.
2/19
Group members
NAME REGISTRATION NO
ARFA UW-08-ME-BE-27
MIR KINAN UW-08-ME-BE-28
NASEER KHAN UW-08-ME-BE-29
USMAN AMIN UW-08-ME-BE-30
7/31/2019 Flexible Manufacturing Systems1.
3/19
Contents
Introduction
History of FMS
Flexible automation
Categories of flexibility
Approaches of FMS
FMS working
FMC
Advantages of FMS
Disadvantages of FMS Examples
7/31/2019 Flexible Manufacturing Systems1.
4/19
Definition
A flexible manufacturing system (FMS) is amanufacturing system in which there is some amountof flexibility that allows the system to react in the caseof changes, whether predicted or unpredicted.
orA Flexible Manufacturing System (FMS) is aproduction system consisting of a set of identical andcomplementary numerically controlled machine which
are connected through an automated transportationsystem. each process in FMS is controlled by adedicated computer (FMS cell computer).
7/31/2019 Flexible Manufacturing Systems1.
5/19
Illustration of a FMS
7/31/2019 Flexible Manufacturing Systems1.
6/19
History of FMS
At the turn of the century FMS did not exist. Therewas not a big enough need for efficiency because themarkets were national and there was no foreigncompetition.After the Second World War a new era inmanufacturing was to come. The discovery of newmaterials and production techniques increased qualityand productivity. The wars end open foreign markets
and new competition. Now the market focused onconsumer and not the manufacturer.stay in business.
7/31/2019 Flexible Manufacturing Systems1.
7/19
The first FMS was patent in 1965 by Theo Williamsonwho made numerically controlled equipment.Examplesof numerically controlled equipment are like a CNClathes or mills which is called varying types of FMS. In
the 70 s manufacturers could not stay to date with the?ever-growing technological knowledge manufacturerscompetitors have, so FMS became mainstream inmanufacturing.In the 80 s for the first time manufacturers had to take?in consideration efficiency, quality, and flexibility to stayin business.
History of FMS
7/31/2019 Flexible Manufacturing Systems1.
8/19
Flexible Automation
vAbility to adapt to engineering changes in parts
vIncrease in number of similar parts produced on thesystemvAbility to accommodate routing changes
vAbility to rapidly change production set up
7/31/2019 Flexible Manufacturing Systems1.
9/19
Two categories of flexibility
v Machine flexibility, covers the system'sability to be changed to produce newproduct types, and ability to change theorder of operations executed on a part.
v Routing flexibility, which consists of theability to use multiple machines to performthe same operation on a part, as well as the
system's ability to absorb large-scalechanges, such as in volume, capacity, orcapability.
7/31/2019 Flexible Manufacturing Systems1.
10/19
FMS different approaches
vThe capability of producing different parts withoutmajor retooling
v A measure of how fast the company converts itsprocess from making an old line of products to producea new product
v The ability to change a production schedule, to modifya part, or to handle multiple parts
7/31/2019 Flexible Manufacturing Systems1.
11/19
FMS Working
By implementing the components of robotics,manufacturing technology and computer integrated
manufacturing in a correct order one can achieve asuccessful Flexible Manufacturing System.
7/31/2019 Flexible Manufacturing Systems1.
12/19
FMS Components
vNumerical Control (NC) machine toolsvAutomated material handling system
Automated guided vehicles (AGV)
ConveyorsAutomated storage and retrieval systems
vIndustrial RobotsvControl Software
(AMHS)
7/31/2019 Flexible Manufacturing Systems1.
13/19
Parts Finished
goods
Load Unload
Computercontrolroom
INSPECTION
PAINT ROBOT
MACHINE
MACHINE
INSPECTION
FINISHING
Conveyor
INSPECTION
Tool
s
ASSUMBLY
INSPECTION
7/31/2019 Flexible Manufacturing Systems1.
14/19
FMS AND FMC
Early FMSs were large and very complex, consisting ofdozens of CNCs and sophisticated material handlingsystems. They were very automated, very expensive andcontrolled by incredibly complex software. There were
only a limited number of industries that could affordinvesting in a traditional FMS. The trend in FMS istoward small versions of the traditional FMS, calledflexible manufacturing cells (FMC).Today two or more CNC machines are considered aflexible cell and two more cells are considered a flexible
manufacturing system. Thus, a Flexible ManufacturingSystem (FMS) consists of several machine tools alongwith part and tool handling devices such as robots,arranged so that it can handle any family of parts forwhich it has been designed and developed.
7/31/2019 Flexible Manufacturing Systems1.
15/19
Advantages of FMS
vFaster, lower- cost changes from one part to anotherwhich will improve capital utilizationvLower direct labor cost, due to the reduction in numberof workersvReduced inventory, due to the planning andprogramming precisionvConsistent and better quality, due to the automatedcontrolvLower cost/unit of output, due to the greater
productivity using the same number of workersvSavings from the indirect labor, from reduced errors,rework, repairs and rejects
7/31/2019 Flexible Manufacturing Systems1.
16/19
Disadvantages of FMS
vLimited ability to adapt to changes in product or productmix (e.g., machines are of limited capacity and thetooling necessary for products, even of the same family,is not always feasible in a given FMS)vSubstantial pre-planning activityvExpensive, costing millions of dollarsvTechnological problems of exact component positioningand precise timing necessary to process a componentvSophisticated manufacturing systems
7/31/2019 Flexible Manufacturing Systems1.
17/19
FMS Example
When different models are designed to be assembled inthe same sequence they can be built in the same plant.This maximizes efficiency and allows the company torespond quickly to changing customer
7/31/2019 Flexible Manufacturing Systems1.
18/19
FMS Examples
In the body shop, wherethe sheet metal comestogether to form thevehicles body, flexibilitymeans more than 80percent of the tooling isnot specific to onemodel. It can bereprogrammed to weld acar or a truck or acrossover of similar
size.
Body Shop
In the paint shop,flexibility means roboticapplicators areprogrammed to cover
various body styles asthey move through thepaint booth with equalprecision. This results inminimizing waste andenvironmental impactwhile maximizing quality.
Paint Shop
In the final assemblyarea, flexibility meansthe build sequence isthe same among
multiple models onone or more platformsallowing for efficientutilization of peopleand equipment.
Final Assembly
7/31/2019 Flexible Manufacturing Systems1.
19/19
THANKS