November 2012

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HP Engineering Case Histories: Case 71: Statistical visual data can be useful in troubleshooting—Part 1

I’ve spent many years troubleshooting equipment, along with investigative research. In research-statistical design, data analysis is frequently used when test information is available. This artic..

Sofronas, T., Consulting Engineer

I’ve spent many years troubleshooting equipment, along with investigative research. In research-statistical design, data analysis is frequently used when test information is available. This article shows how very basic data analysis can be quite useful in troubleshooting. Most specialists are knowledgeable about plotting histograms and the value obtainable from such graphs as represented by the distribution of collected data. Remember: “When looking for an answer, a good place to start is to follow the data.” In this case history, we will review a production line that machines a precision groove in a casting bore for automotive use. Hundreds of thousands of casting bores a

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