This study evaluated the industrial applicability of a non-destructive measurement method based on impression materials for complex internal geometries. Using Hydrophilic Vinyl Polysiloxane impression material and a Mitutoyo optical projector, repeated measurements (total 60 data points) were taken on dovetail groove samples. A Gage R&R analysis showed %EV at 12.75%, %AV at 5.5%, and %GRR at 13.9%, indicating conditionally acceptable reliability according to AIAG criteria. The results confirm the method's practical potential for industrial use, with opportunities for repeatability improvement. Future integration with digital imaging and AI edge-detection technologies is expected to further enhance automated precision measurement capabilities.

• 유민우(Ph.D. student at Jeonju University's Graduate School of the Department of Industrial Engineering) | Min-Woo Yoo
• 정호연(a professor of Department of Industrial Engineering at Jeonju University) | Ho-Yeon Chung Corresponding author