Abstract
This Gage R&R study of turbine blade airfoils was performed by a leading aerospace manufacturing company.
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Part-to-part variation (product) Repeatability (measuring equipment) Reproducibility (operators)
The Gage R&R result quantifies the measuring system and the process to ensure it is acceptable for the specified task. Gage R&R studies are conducted for capital equipment requisition as well as internal and external projects and/or buy-offs to ensure process integrity and quality control. An ATOS structured blue light 3D digitizer, MCXL automation, and a reference frame were used in this measurement study. Test Parameters
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3 operators
10 turbine blade airfoil castings
3 runs
15 critical industry standard measurement points were selected for the analysis. In order for a measurement system to be acceptable, the % Tolerance must be less than 10%. Due to the intricate organic shape of turbine blades the AA TWIST, BB TWIST, and CC TWIST are areas where it is expected to receive the highest numbers. These measurements are on the sharpest areas of the airfoil on the leading and trailing edges. Measurement systems can have a difficult time capturing data and calculating the blade’s end point. This study will cover statistical data and mathematical calculations with in-depth explanation of process and results.
Cite this paper
Miles Molnar. Capture 3D, Farmington Hills, MI. Presented at the Coordinate Metrology Systems Conference 2014, North Charleston, South Carolina, July 21-25, 2014. Coordinate Metrology Society, reference CMS-2014-010.