Fabrication of a Complex Part with Deep-Draw Sections By Resin Transfer Molding

Tsotsis, Thomas K.; Cespedes-Gonzalez, Gilbert; Wiener, Mario; Cohen, Leslie J.; Calamito, Dominic P.; Costantino, Stephan; Klunker, Florian

doi:10.33599/nasampe/s.19.1389

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results show that this is a viable process meeting standard quality requirements and helped to highlight new tooling and equipment approaches. These findings are consistent with the findings completed in other RAPM [3][4][5][6][7][8] technology tracks and show novel approaches for structural composite fabrication.…”

Section: Discussionsupporting

confidence: 90%

“…A multifunctional team including Design, Materials and Process, and Strength Engineers developed an experimental laminate, referred to as TS-RAPM-012. This laminate was created to meet a set of mechanical performance requirements and hit a set of processing milestones in the RAPM program [3][4][5][6][7][8], in conjunction with the Tailorable Feedstock and Forming (TFF) initiative [1]. This part has several characteristics that are of interest when a high stiffness, buckle resistant laminate is desired.…”

Section: Component Definitionmentioning

confidence: 99%

See 1 more Smart Citation

Compression Molding of Complex Thermoset Laminates

Martinez,

Hahn,

Hughes

et al. 2020

SAMPE 2020 | Virtual Series

View full text Add to dashboard Cite

Traditionally, high-rate small parts have been fabricated out of metal due to low cost, and high producibility. Following after trends in the automotive sector, certain aerospace-grade resins have shown processing flexibility while maintaining high mechanical and physical performance. The ability to fabricate complex composite laminates with a compression molding process using aerospace resins is essential for achieving low cost, structurally efficient components. The reduction in composites processing time through compression molding also enables favorable economic trades against metallic baselines, while providing increased component performance and providing weight savings. Challenges exist as the laminate thickness increases, tight radius of curvature are incorporated, and unidirectional tape is utilized. An undulating part was fabricated using aerospace prepregs and compression molding techniques. This shows that unidirectional tape can be used to fabricate constant cross section laminates with thick complex features in an automated process with direct forming. The demonstration article was fabricated using CYCOM® 5320-1 carbon fiber tape and fabric prepregs utilizing an on tool cycle time of 30 minutes to enable high throughput. The fabrication of this article will lead to further development of structure that requires quasi-isotropic properties coupled with complex, stiffening geometry. In addition, the ability to compression mold this geometry opens the option of geometrically stiffened structure where previously cost prohibitive.

show abstract