Statistical process control for charting multiple sources of variation with an application to neutron tube production

Technical Report · Mon Nov 30 23:00:00 EST 1992

OSTI ID:10122229

Crowder, S V; Spencer, F W

Multiple sources of variation will often affect the stability of a manufacturing process. Items from different batches may vary because of variation both within a batch and among different batches. Potential sources of variation include within run, run-to-run and week-to-week differences in a manufacturing process. If multiple sources of variation are present, traditional control chart methods may not be appropriate. In this report we develop control charts for monitoring these sources of variation as well as the process average. An example of how to use the control charts is given, using Field 89 data from functional testing of the MC3854 neutron tube.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10122229
• Report Number(s): SAND--90-0389; ON: DE93006608
• Country of Publication: United States
• Language: English

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DATA COVARIANCES
DESIGN, FABRICATION, AND OPERATION
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