Why Taguchi Method Tip 7

8/13/2019 Why Taguchi Method Tip 7

1/13

Why/When is Taguchi Method

Appropriate?

Friday, 1stJune 2001

Tip #7Taguchi Method :

When to Select a larger OA

to perform Factorial Experiments


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Taguchi Method :When to Select a larger OA


We always think about reducing the number ofexperiments (to minimize the resources equipment, materials, manpower and time)

However, doing ALL / Factorial experiments is agood idea if

Conducting experiments is cheap/quickbutmeasurements are expensive/take too long

The experimental facility willNOTbe available laterto conduct the verification experiment

We doNOTwish to conduct separateexperimentsfor studying interactions between Control Factors

Tip #7


3/13


4/13

Conducting ALL / Factorial experiments

is a good idea if

The experimental facility will NOT beavailable LATER to conduct the verification

experiment

A typical case when experiments are done On Production equipment

On Borrowed equipment

In presence of visiting experts

Taguchi Method :When to perform ALL / Factorial Experiments


5/13

Conducting ALL / Factorial experiments is agood idea if

We do NOTwish to conduct separateexperimentsfor studying interactionsbetween Control Factors

Analyze without considering interactions, Predict bestcombinations of control factors as well as Best results.Check this outwe already HAVE the results of the best

experiment If the results do not match, Evaluate the key

interactionsagain check results

If the results still do not match, Evaluate allinteractionsagain check results

Taguchi Method :When to perform ALL / Factorial Experiments


6/13

Taguchi Method :How to Select a larger OA


Control Factors

and Levels

Factorial

Combinations

Suitable

OA

2 CF / 2-levels 4 L4





7/13

Taguchi Method :How to Select a larger OA


Control Factors

and Levels

Factorial

Combinations

Suitable

OA


1 CF / 2-levels

2 CF / 3-levels

18 L18


1 CF / 2-levels

3 CF / 3-levels

54 L54


8/13

More Tips Links below

16. Taguchi Method

1stPriority : Variance Reduction2ndPriority : Factor Effects

15. innerL9 array withouterL4 and L9 NoIsE arrays

14. Taguchi Method

innerL18 array withouterL4 and L9 NoIsE arrays

13. Taguchi Method

Why/When is TaguchiMethod notAppropriate?

Friday, 3rd Aug 2001

Friday, 27thJuly 2001



Tips 12, 11, 10
http://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip16.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip13.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip14.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip15.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip16.ppt


9/13

More Tips Links below

12. Taguchi Method

innerL8 array with

outerL4 and L9 NoIsE arrays

11. Taguchi Method

Useful at ALL Life-stages of a Process or

Product

10. Taguchi Method

Performs Process centeringor fine tuning


Friday, 29thJune 2001

Friday, 22ndJune 2001

Tips 9, 8, 7
http://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip10.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip11.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppthttp://www.ee.iitb.ac.in/~apte/Why/WhyTaguchiMethodTip12.ppt


10/13

More Tips Links below9. Taguchi Method

Identifies the rightNoIsE factor(s)for Tolerance Design

8. Taguchi Method

F inds best settings to optimize

TWOquali ty character isticsSimultaneously

7. Taguchi MethodWhen to select a Larger OA to perform

Factorial Experiments



Friday, 1stJune 2001

Tips 6, 5, 4


11/13


Using Orthog onal Arrays fo r Generat ing

Balanced Com binat ions o f NoIsE Factors

5. Taguchi MethodSignal-to-Noise Rat io for Qual i ty

Character ist ics

approaching IDEAL value

4. Taguchi Methodimproves " quality at all the life stages

atthe design stage itself

Friday, 25thMay 2001



Tips 3, 2, 1


12/13


Appropriate forConcurrent Engineering

2. Taguchi Methodcan study Interaction

between Noise Factors and Control

Factors

1. TaguchisSignal-to-Noise Ratios are in

Log form

Friday, 4thMay 2001

Friday, 27thApril 2001

Friday, 6th

April 2001


13/13

Why Taguchi Method Tip 7

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