Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline

Journals

remove_circle_outline

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = film-sealed compression resin transfer molding

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
42 pages, 15724 KiB  
Article
Edge Race-Tracking during Film-Sealed Compression Resin Transfer Molding
by Mario Vollmer, Swen Zaremba, Pierre Mertiny and Klaus Drechsler
J. Compos. Sci. 2021, 5(8), 195; https://doi.org/10.3390/jcs5080195 - 21 Jul 2021
Cited by 1 | Viewed by 4272
Abstract
Edge race-tracking is a frequently reported issue during resin transfer molding. It is caused by highly permeable channels and areas between the preform edge and cavity, which can significantly change the preform impregnation pattern. To date, information is scarce on the effect of [...] Read more.
Edge race-tracking is a frequently reported issue during resin transfer molding. It is caused by highly permeable channels and areas between the preform edge and cavity, which can significantly change the preform impregnation pattern. To date, information is scarce on the effect of edge race-tracking in compression resin transfer molding (CRTM). To close this gap, laboratory equipment was developed to study the CRTM preform impregnation via flow visualization experiments. The preform was thereby encapsulated in thin thermoplastic films sealing its impregnation. Film-sealed compression resin transfer molding (FS-CRTM) experiments of preforms with a small geometrical aspect ratio showed fast filling of the injection gap and a subsequent through-thickness preform impregnation. Creating an edge race-tracking channel, an additional lateral in-plane flow from the channel towards the preform center was observed, initiating soon after the injection started and caused by the spatial connection between the injection gap and the race-tracking channel. To diminish edge race-tracking, a passive flow control strategy was implemented via a split design of the upper tool to spatially isolate the injection gap from the channel and to pre-compact the preform edge. A delayed and reduced lateral race-tracking flow was observed, showing that the passive flow control strategy increases the process robustness of FS-CRTM regarding edge race-tracking effects. Full article
Show Figures

Figure 1

Back to TopTop