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Old 10th April 2005, 12:21 AM
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Let Me Help You Could anyone tell me what is relation / difference in Cpk and Ppk
Could anyone tell me what is relation / difference in Cpk and Ppk. where we should calculate Cpk and where ppk. What is difference is data collection?
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Old 10th April 2005, 07:54 AM
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kapoor,

check the following link, a very good discussion of capability!

Ppk formula - Can some one please help me - I have attached the sheet.


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Old 10th April 2005, 12:56 PM
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Also see: Capability Analysis - Process Capability Indices
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Old 14th April 2005, 11:28 AM
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Look into the attached sheet to see difference between

1) Cmk – being machine capability
2) Ppk – being preliminary process capability index ( had to use it for Ford in
the start up of new projects )
3) Cpk – process capability index
4) Ppk – Performance capability index
5) Cpm – Targeted capability index


Hope this helps.
Attached Files: 1. Scan for viruses before using, 2. Please report any 'bad' files by Reporting the post it is in, 3. Use at your Own Risk.
File Type: xls Cmk - Ppk - Cpk - Cpm + correction versus improvement.xls (83.0 KB, 777 views)
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Old 15th March 2006, 01:23 AM
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Also see: http://elsmar.com/Forums/showthread.php?t=15164 Contemporary comments / clarifications appreciated.
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