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Figure 8: Thickness variation of laminates manufactured with and without debulking Figure 8 shows a comparison of thickness variation in laminates with select corner angles processed with and without debulking. The CoV was not strongly affected by debulking, and no clear trend was observed across all corner angles. The inconsistent and negligible nature of the effect was confirmed by comparing the corner resin length in concave laminate, which was also insensitive to debulking. These results indicated that the debulking steps used in this study contributed to the removal of entrapped air and reduced the void content, but did not affect the conformation of the prepreg laminate to the tool. 3.3Set IV - Effect of Mold Corner Radius Eight-ply laminates of prepreg were manufactured on molds with varying corner radii. Because concave corner laminates were shown to be more prone to defects than convex corner laminates, larger corner radii (9.53 mm and 12.7 mm) were selected for the concave tooling than for the convex tooling (6.35 mm and 9.53 mm). No debulking was carried out. DOI: 10.1002/pc.23773 17PDF Image | Vacuum Bag-Only Prepregs
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