18-Month ISO 14001 Transition Plan Now Available

A steel mill had a quality problem in the manufacture of cold-rolled steel for use in applications such as automobile hoods. Several hot-rolled coils were welded end-to-end to form a long continuous band.
When we discuss or mention Six Sigma, we almost always hear about getting defect rates down to 3.4 ppm. Consider a light bulb. How would you like to have a defect rate of 3.4 ppm only to find out that the bulb lasted just 20 hours before it burned out?
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