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  Measurement, Test and Calibration
  new gage R&R

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Author Topic:   new gage R&R
Lurker (<10 Posts)

Posts: 4
Registered: Nov 2000

posted 08 November 2000 07:50 PM     Click Here to See the Profile for hemant   Click Here to Email hemant     Edit/Delete Message   Reply w/Quote
the gage manufacturer is not ready to give guarantee for 10% R&R for the new gages.
i wonder how everyone is ordering new comptors?
what is the situations in the QS9000 initiator companies like FORD,GM & Chrysler plants. who supplies them these comptors?
can anyone enlighten?
thanking everyone in anticipation

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Marc Smith
Cheech Wizard

Posts: 4119
From:West Chester, OH, USA

posted 26 November 2000 09:57 PM     Click Here to See the Profile for Marc Smith   Click Here to Email Marc Smith     Edit/Delete Message   Reply w/Quote
Typically R&R is done on parts you intend to measure. What I normally see is an R&R on each gage prior to its being placed into service.

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posted 30 November 2000 11:04 AM           Edit/Delete Message   Reply w/Quote
10% R&R is expressed either as a % of Study Variation or Process Variation or of Tolerance. I feel the solution would be to simply attempt and select a different instrument suitable to measure the process. Due attention is also needed to ensure adequate discrimination to detect part to part variation.

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Drew H
Forum Contributor

Posts: 11
From:Kelowna, B.C., Canada
Registered: Oct 2000

posted 30 November 2000 12:29 PM     Click Here to See the Profile for Drew H   Click Here to Email Drew H     Edit/Delete Message   Reply w/Quote
Marc's got it right - you need to do the R&R on the actual part being measured, with the normal operators who make the measurement. There is no way a gage manufacturer can gaurantee the %R&R. They can gaurantee things like accuracy, repeatability, resolution, linearity, stability, etc., but not R&R. You will have to verify R&R yourself.

[This message has been edited by Drew H (edited 30 November 2000).]

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