Description

Speedometer cables can be noisy because of shrinkage in the plastic casing material. An experiment was conducted to find out what caused shrinkage by screening a large number of factors. The engineers started with 15 different factors.

Usage

Format

The dataset contains the following variables: (variables a-o are 2 level factors, coded "+" and "-" where "+" indicates a higher value where appropriate)

a

liner outer diameter

b

liner die

c

liner material

d

liner line speed

e

wire braid type

f

braiding tension

g

wire diameter

h

liner tension

i

liner temperature

j

coating material

k

coating die type

l

melt temperature

m

screen pack

n

cooling method

o

line speed

y

percentage shrinkage per specimen

Source

G. P. Box and S. Bisgaard and C. Fung (1988) "An explanation and critque of Taguchi's contributions to quality engineering", Quality and reliability engineering international, 4, 123-131