Understanding Variation and Statistical Process Control: Variation and Process Capability Calculations

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Abstract

Outline

  • Variation and It’s Relationship to Quality
  • The Normal Distribution as a Model for Describing Variation
  • Comparing Variation to Specifications
  • Relationship between Cp and Cpk
  • Calculation of Cpk and Ppk

Cite this work

Researchers should cite this work as follows:

  • NACK Network (2017), "Understanding Variation and Statistical Process Control: Variation and Process Capability Calculations," http://nanohub.org/resources/27739.

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Understanding Variation and Statistical Process Control: Variation and Process Capability Calculations
  • Understanding Variation and Statistical Process Control: Variation and Process Capability Calculations 1. Understanding Variation and St… 0
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  • Outline 2. Outline 48.882215548882215
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  • New Face of Quality – Low Variation 3. New Face of Quality – Low Va… 100.96763430096763
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  • Data from the Process Provides Variation Insight 4. Data from the Process Provides… 383.75041708375045
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  • A Histogram Outlines the Diameter Distribution 5. A Histogram Outlines the Diame… 439.17250583917252
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  • A Normal Distribution defines the Diameter Variation 6. A Normal Distribution defines … 612.14547881214548
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  • Data Assumed as a Sample of a Normal Population 7. Data Assumed as a Sample of a … 776.67667667667672
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  • Assuming a Normal Distribution Establishes Limits 8. Assuming a Normal Distribution… 895.89589589589593
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  • Cp to Measure Process Capability 9. Cp to Measure Process Capabili… 1038.2716049382716
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  • Cp to Measure Process Capability 10. Cp to Measure Process Capabili… 1231.3646980313647
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  • Cp to Measure Process Capability 11. Cp to Measure Process Capabili… 1335.3353353353355
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  • Process Capability 12. Process Capability 1422.7227227227227
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  • Process Capability Calculations 13. Process Capability Calculation… 1538.9389389389389
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  • Process Capability 14. Process Capability 1725.3586920253588
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  • Data for Long-term Process Capability 15. Data for Long-term Process Cap… 1983.1498164831498
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  • Calculate the Process Capability 16. Calculate the Process Capabili… 2061.8284951618284
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  • Interpretation of Capability Output 17. Interpretation of Capability O… 2310.1101101101103
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  • Relationship Between Cpk vs Ppk vs Cp 18. Relationship Between Cpk vs Pp… 2433.9673006339672
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  • Acceptable Cpk Levels 19. Acceptable Cpk Levels 2554.6880213546883
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  • Conclusions 20. Conclusions 2715.2485819152489
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