Six Sigma Capable
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- This topic has 5 replies, 5 voices, and was last updated 15 years, 3 months ago by
jagdish.
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December 18, 2006 at 4:49 am #45555
If your 6 sigma limits are below you USL and below your LSL is your process 6 sigma capable.
New at this.0December 18, 2006 at 6:30 am #149141hi JB,
U r close enough!…” If u’r 6 sigma limits are below USL & above LSL then process is capable or defect free (in simple words)” but most importantly if u’r 6 sigma limits = 50% of u’r tolerance limits then u’r process is 6sigma capable.
…easy isn’t it!
bye
0December 18, 2006 at 2:45 pm #149171u’r wrong.
If + or – 6 is above or below specs respectively, you are not 6 sigma capable.
Also try communicating like an adult instead of a text messaging kid.0December 19, 2006 at 8:04 am #149258stan baby…
i’m sure u’v made it very clear (as an adult) for someone who is “NEW” at this!!!
man… u’r so matured…!!!
OK…I shall make it even more simple…just for u:
” If u’r estimated part to part variation, estimated @ 99.73% Confidence Level viz. nothing but u’r 6sigma lies within u’r customer or process specific tolerance i.e. Specification Limits i.e below the USL or above LSL (basically within the boundary) and also if u’r 6 sigma = 50% of the Tolerance, then u can treat me b’cos u’r process has achieved 6sigma!!”
textless formula…again just for u:
6sigma = 50% (USL-LSL)
sigma = R-bar/d2
R-bar= Average of ranges collected over 24 time blocks with 3 or 5 readings in every timeblock
d2= constant (depends on sample size = 3, 5 etc /time block)
Zusl = (USL – overall avg) / 3sigma
Zlsl = (overall avg – LSL)/3 sigma
Cpk = (Zusl/3, Zlsl/3)
simple isn’t it….?!!
0December 19, 2006 at 10:42 am #149260u r both rong
if yr proces is out of control its not capable of anythng.0February 7, 2007 at 10:37 pm #151707
jagdishParticipant@jagdishInclude @jagdish in your post and this person will
be notified via email.I thought ZLSL= (Average – LSL)/std. deviation i.e. sigma.
Is it
(average – LSL)/3sigma ?
I was searching for formula to confirm.
Thanks,0 -
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