Use Create Taguchi Design to create a robust parameter design to identify controllable factors in your process that can minimize response variation and make your product insensitive to changes in noise factors. Taguchi designs include control factors, which are factors in the process that you can control, and noise factors, which are factors that you cannot control when the product or process is in use.
For example, an engineer for a golf equipment manufacturer wants to design a new golf ball that has better flight distance. The engineer has identified four control factors (core material, core diameter, number of dimples, and cover thickness) and one noise factor (type of golf club). Because there is no signal factor, the engineer creates a static Taguchi design.
This Minitab worksheet shows a portion of a static Taguchi design. After collecting the data, the engineer enters the response data in the empty columns of the worksheet and analyzes the design.
C1-T | C2 | C3 | C4 | C5 | C6 |
---|---|---|---|---|---|
Core material | Core diameter | Dimples | Cover | Driver | 5-Iron |
Liquid | 118 | 392 | 0.03 | ||
Liquid | 118 | 392 | 0.06 | ||
Liquid | 156 | 422 | 0.03 | ||
Liquid | 156 | 422 | 0.06 | ||
Tungsten | 118 | 422 | 0.03 | ||
Tungsten | 118 | 422 | 0.06 | ||
Tungsten | 156 | 392 | 0.03 | ||
Tungsten | 156 | 392 | 0.06 |
If you already have the factor columns in a worksheet, use Define Custom Taguchi Design. Custom designs let you specify which columns are the factors and any other design columns that you already have.