Posts tagged Gauge R&R

4 articles

How to Run a Gauge R&R Study (and Why a Passing %GRR Can Still Fail the Part)
Measurement, MSA, and SPC
Gauge R&RMSA

How to Run a Gauge R&R Study (and Why a Passing %GRR Can Still Fail the Part)

A Gauge R&R study can clear the 10% line and still be worthless, because the number is being read against the wrong denominator. A worked study, run through QualityEngineer.ai's own Analyze module, showing what %GRR against tolerance hides, why NDC catches it, and how Element 8 coverage finds the gauge nobody studied at all.

September 9, 20269 min read
PPAP Rejection Reasons: Why Packages Bounce and How Each One Gets Caught Before Submission
PPAP and Submission
PPAPPPAP Rejection

PPAP Rejection Reasons: Why Packages Bounce and How Each One Gets Caught Before Submission

Most PPAP rejections are not a missing document, they are two elements that are supposed to say the same thing about the same characteristic and do not. Five recurring rejection categories from the reviewer's seat, the AIAG PPAP element and IATF 16949 clause behind each, and how QualityEngineer.ai's linked traceability graph surfaces the gap before a reviewer does.

September 6, 20268 min read
PPAP Element 8: What Has to Be Covered Besides the Gauge R&R Report?
PPAP and Submission
PPAPElement 8

PPAP Element 8: What Has to Be Covered Besides the Gauge R&R Report?

A single Gauge R&R report attached to Element 8 flips the element's status to submitted, but that is not the same as every special characteristic on the part having a defensible measurement system behind it. Here is what Element 8 actually has to cover under AIAG PPAP 4th Edition and IATF 16949 Clause 7.1.5.1.1, why a package can look complete and still leave a critical gauge unqualified, and how QualityEngineer.ai tracks MSA coverage characteristic by characteristic instead of element by element.

August 12, 202611 min read
Gauge R&R Acceptance Criteria: %GRR, NDC, and What AIAG MSA Requires
Measurement, MSA, and SPC
Gauge R&RMSA

Gauge R&R Acceptance Criteria: %GRR, NDC, and What AIAG MSA Requires

A Gauge R&R study passes when %GRR is under 10% and NDC is at least 5. Between 10% and 30% is conditional. This guide covers the AIAG MSA thresholds, what %GRR and NDC mean, which values trigger rejection, and what to do when a measurement system does not pass.

April 15, 202610 min read