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Gage R&R Form in Excel for Calculating Gauge R&R - Attached - Page 4

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gage r&r (repeatability and reproducibility), microsoft excel .xls .xlsx spreadsheet, forms and templates (general)
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  #25  
Old 12th November 2010, 05:25 AM
Mr.Happy's Avatar
Mr.Happy

 
 
Posts: 141
Re: Gage R&R Form in Excel for calculating gauge R&R attached

Quote:
In Reply to Parent Post by Miner View Post

The form looks nice. I entered the Ford MSA validation data set to validate the calculations. The %TV and %Tol calculations are correct. There is a slight difference in the ndc results (13 vs. 14). This may be due to how many digits were carried out in the calculation.

If you want to enhance it, consider the other graphs shown in the MSA manual.
Hi all,
I changed Cell J92 to correct difference in the ndc results (13 vs. 14) into
=1,41*(C84/C77)
and now I have 14 ndc instead of 13.

Have a nice weekend

Mr.Happy

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  #26  
Old 14th November 2010, 02:48 PM
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automoto

 
 
Posts: 76
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Quote:
In Reply to Parent Post by Amartinez View Post

Ales,

The cell H26 shows incorrect formula to get the average, show : promedio (H24:H25) and must be promedio (H23:H25),

Regards
Cell H26 calculate "AVERAGE(H23:H25)2.
I change formula for AV calculation. In new form AV is 0 in case of R analyses.

Aleš
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  #27  
Old 16th November 2010, 02:42 PM
jdhigh

 
 
Posts: 1
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

The Excel template KT.158_MSA looked really good, and it should be very helpful. However, I reentered data from a Gage R&R that I did with MiniTab and I got different results. Here are the results from MiniTab that I am interested in using:
Total Gage R&R %Tolerance (Study Var/Toler) 6.91%

Here is the results from the Excel template:100(R&R/Tol) 5.08%

Are Study Var/Toler and R&R/Tol considered to be the same? If so what could be causing the difference between the two numbers?
  #28  
Old 18th November 2010, 04:01 PM
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Mr.Happy

 
 
Posts: 141
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Quote:
In Reply to Parent Post by jdhigh View Post

The Excel template KT.158_MSA looked really good, and it should be very helpful. However, I reentered data from a Gage R&R that I did with MiniTab and I got different results. Here are the results from MiniTab that I am interested in using:
Total Gage R&R %Tolerance (Study Var/Toler) 6.91%

Here is the results from the Excel template:100(R&R/Tol) 5.08%

Are Study Var/Toler and R&R/Tol considered to be the same? If so what could be causing the difference between the two numbers?
Hi jdhigh,

Did you try to check your minitab data with the Measurement_System_Software_Callibration_Tables.xls
see elsewhere in the cove.
Success,

Mr.Happy
  #29  
Old 18th November 2010, 04:23 PM
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Sturmkind

 
 
Posts: 268
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Very nice clean interface. Do you plan to update to MSA 4th edition as well? Your good work would need only a couple of tweaks as the 4th edition does more clearly differentiate between Product and Process GR&R and acceptable % and also modified the 0-30% rule.

Capability comparison and rationale demonstrated that 0-30% error has a neglible effect on Ppk/Cpk estimates. It was noted that capability percentage uses 30% as derived from σ; when the σ˛ (variance) is used, the maximum is 10%. Over 30% the effect on accept/reject decisions is almost exponential. (Appendix B, Page 199).

Thanks!
  #30  
Old 7th March 2011, 07:56 AM
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Mr.Happy

 
 
Posts: 141
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Hi automoto,

Just another question about your MSA Excel file:
I used it a couple of times now, but i wonder if it is not to be needed to fill in the minimal gage resolution ? For example when using a digimatic caliper fill in minimal gage resolution 0,01 mm or when using a micrometer fill in minimal gage resolution 0,001 mm etc.

cheers

Mr.Happy
  #31  
Old 8th March 2011, 03:53 PM
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automoto

 
 
Posts: 76
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Quote:
In Reply to Parent Post by Sturmkind View Post

Very nice clean interface. Do you plan to update to MSA 4th edition as well? Your good work would need only a couple of tweaks as the 4th edition does more clearly differentiate between Product and Process GR&R and acceptable % and also modified the 0-30% rule.

Capability comparison and rationale demonstrated that 0-30% error has a neglible effect on Ppk/Cpk estimates. It was noted that capability percentage uses 30% as derived from σ; when the σ˛ (variance) is used, the maximum is 10%. Over 30% the effect on accept/reject decisions is almost exponential. (Appendix B, Page 199).

Thanks!
Hi,

I have in plan to add on the form calculation of PV from historical variation informations (Pp). See page 121. Also calcualtion described in appendix B will be added. Thans for your proposal.
What you mean under 0-30% rule? GRR criteria all the same as in MSA 3rd version, right? Page 78.

Form update will be made in one month.
Regards
  #32  
Old 8th March 2011, 04:01 PM
automoto's Avatar
automoto

 
 
Posts: 76
Re: Gage R&R Form in Excel for Calculating Gauge R&R - Attached

Quote:
In Reply to Parent Post by Mr.Happy View Post

Hi automoto,

Just another question about your MSA Excel file:
I used it a couple of times now, but i wonder if it is not to be needed to fill in the minimal gage resolution ? For example when using a digimatic caliper fill in minimal gage resolution 0,01 mm or when using a micrometer fill in minimal gage resolution 0,001 mm etc.

cheers

Mr.Happy
Hi Mr. Happy,

If gauge resolution is OK tells you ndc index. Do you want that I add on the form data about gauge resolution?


Regards
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