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ZeeTX
Hi everyone:
I have come accorss a rather strange DATA SHEET in which all the measured values of a part(s) are exactly the same as the measured values of the other operators..!
Here's a Brief description of the DATA SHEET below.
PART = 2x2 Inch FOAM piece. LSL = 2.000 Inch ; USL = 2.250 Inch;
No. of parts = 5; No. of Trials = 3; No. of Operators = 3;
Measured Characteristc - Length; Gage Name - RULER; Gage Number - 1/16 Inch = 0.0625 Inch
PS. Images of the GRR Data sheets are attached for reference (Click on the Images for Bigger size)
From the above Data sheets:
- There is NO Equipment variation (Zero);
- NO Appraiser/Operator variation (Zero) [This is not possible unless Assuming all the operators measure the part together influencing each others readings..!];
- R&R is also Zero;
-- There is only Part Variation = 0.131 and %PV = 52.4
In this Case Study I'd like to know:
Q. Referring to the above GRR Study; What would one should change to Improve the Measurement System..?
Q. If GRR Study is to be repeated; What would one do differently (Assuming all operators measured the part together)..?
I have come accorss a rather strange DATA SHEET in which all the measured values of a part(s) are exactly the same as the measured values of the other operators..!
Here's a Brief description of the DATA SHEET below.
PART = 2x2 Inch FOAM piece. LSL = 2.000 Inch ; USL = 2.250 Inch;
No. of parts = 5; No. of Trials = 3; No. of Operators = 3;
Measured Characteristc - Length; Gage Name - RULER; Gage Number - 1/16 Inch = 0.0625 Inch
PS. Images of the GRR Data sheets are attached for reference (Click on the Images for Bigger size)
From the above Data sheets:
- There is NO Equipment variation (Zero);
- NO Appraiser/Operator variation (Zero) [This is not possible unless Assuming all the operators measure the part together influencing each others readings..!];
- R&R is also Zero;
-- There is only Part Variation = 0.131 and %PV = 52.4
In this Case Study I'd like to know:
Q. Referring to the above GRR Study; What would one should change to Improve the Measurement System..?
Q. If GRR Study is to be repeated; What would one do differently (Assuming all operators measured the part together)..?
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