Comprehensive Gauge R&R Study

Course Objectives

These included the statistical concept, procedure, planning and performing a gauge R&R study, especially the variable data of  X̅ & R method is more thoroughly for the variations such as equipment variation (EV), appraiser variation (AV), and part variation (PV) on the repeatable measurements.

• Understand the probabilities and statistics concepts that are used in Gauge R&R studies.
• Understand the X̅ and R, and ANOVA methods are based on range and standard deviation approach respectively, and appropriate application for these methods.
• Understand the issues involved in repeatability and reproducibility (R&R) studies
• Plan and conduct the gauge R&R studies for attributes and variables data.
• Understand the measurement variations for a measurement system.
• Learn how to estimate the repeatability and reproducibility in a measurement process
• Understand the attribute study is to ensure the effectiveness of the inspection system.
• Estimate the probability of correct decision on product acceptance for certain Cp that will improve confidence when make a measurement.
• Decide on the acceptance or suitability of a measurement system.
• Avoid any significant measurement error on product acceptance and on control charts and/or process capability studies that will provide validity for statistical control.
• Provide criteria for accepting new measuring equipment.
• Comparisons between different measuring devices can be made more effectively.
• Evaluate deficient gauges as opposed to incapable/out-of-control processes (False alarm – Risk of unnecessary action taken on In-control process).
• Organize the format (just upload the data and the criteria of GR&R study are automatically calculated) to perform a GR&R study by using Microsoft Excel.
• Understand and apply misclassification rates, which is less subjective.
• Apply and interpret the results are obtained from the gauge R&R studies
• Improve equipment maintenance, selection, calibration, and use.
• Improve observer’s training and skill (as necessary).
• Handle the issues from the measurement system during measuring and auditing.
• Understand the purpose of gauge R&R studies that will reduce the risks of wrong decisions on product acceptability, and this will improve the total quality control.