Slide 1

ANOVA for Taguchi Method Using

Minitab

Slide 2

Example of a Static Taguchi design (Nominal

the best : seal strength case)

Suppose you are an engineer and need to evaluate the factors that affect the seal strength of plastic bags used to ship your product. You have identified three controllable factors (Temperature, Pressure, and Thickness) and two noise conditions (Noise 1 and Noise 2) that may affect seal strength. You want to ensure that seal strength meets specifications. If the seal is too weak, it may break, contaminating the product and resulting in returns. If the seal is too strong, customers may have difficulty opening the bag. The target specification is 18.

1 Open the worksheet SEAL.MTW. The design and response data have been saved for you.

2 Choose Stat > DOE > Taguchi > Analyze Taguchi Design.

3 In Response data are in, enter Noise1 Noise2.

4 Click Graphs. Under Generate plots of main effects and selected interactions for, check Standard deviations. Click OK.

5 Click Tables. Under Display response tables for, check Standard deviations. Click OK in each dialog box.

Slide 3

Slide 4

Hasil perhitungan SN Ratio

Slide 5

Nominal the best case (Seal)

Slide 6

Slide 7

Source : Minitab reference manual