Spring Frame Press Fabrication of Aerospace Production Components

Luchini, Timothy; Rodríguez, Alejandro; Rogers, Scott; Bras, Aurele; Whysall, Adam; Russell, Richard; Lucas, Scott; Hahn, Gail L.

doi:10.33599/nasampe/s.19.1390

Cited by 2 publications

(11 citation statements)

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“…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%

“…A quasi-isotropic layup was used utilizing primarily intermediate modulus, sandwiched between fabric and glass plies. TS-RAPM-012 utilizes the CYCOM® 5320-1 resin system, which has shown the flexibility required for shorter length, isothermal cure cycles [3]. CYCOM® 5320-1 IM7 Unidirectional…”

Section: Figure 1 -Ts-rapm-012mentioning

confidence: 99%

“…Under hydraulic pressure and temperature, the liquid thermoset material is allowed to cure. This process is capable of highvolume fabrication of high-quality laminates [3]. Utilizing prior development in the RAPM program [3], it has been shown that a 30 minute, isothermal cure cycle at 177 °C, followed by a free standing 177 °C post cure for 2 hours provides adequate mechanical and physical properties for the CYCOM® 5320-1 resin system.…”

Section: Compression Molding Of Complex Geometrymentioning

confidence: 99%

“…Thermosets traditionally have a wide variety of product forms that lend themselves to complex forming and isothermal processing. Combined with these product forms, technology has been developed that allows the compression molding of aerospace grade thermoset materials [3].…”

Section: Introductionmentioning

confidence: 99%

“…Compression molding of thermosets offers an out-of-autoclave solution to traditional, autoclave baselines. Utilizing a closed mold tooling concept [3] and isothermal temperatures, on-tool times of 30 minutes or less can be achieved. When paired with a free-standing post-cure, mechanical and physical properties can be attained that compare well with those from an autoclave, or vacuum bag processes.…”

Section: Introductionmentioning

confidence: 99%

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Compression Molding of Complex Thermoset Laminates

Martinez,

Hahn,

Hughes

et al. 2020

SAMPE 2020 | Virtual Series

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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.

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Section: Component Definitionmentioning

confidence: 99%

Section: Figure 1 -Ts-rapm-012mentioning

confidence: 99%

Section: Compression Molding Of Complex Geometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Compression Molding of Complex Thermoset Laminates

Martinez,

Hahn,

Hughes

et al. 2020

SAMPE 2020 | Virtual Series

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Methodology for Press Forming Simulation of a Continuous Fiber-Reinforced Polymer Composite

Rodriguez¹,

Jovas²,

Hahn³

et al. 2020

SAMPE 2020 | Virtual Series

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Numerical simulation is a powerful tool in manufacturing since it provides a lower cost and faster analysis than actual trial-and-error testing. Press forming manufacturing simulation can be realized with many different system configurations including different boundary conditions and material set up. This work presents numerical analysis, advanced material card development and validation of a real component manufactured through press forming using thermoset prepreg material. The simulation was performed with an explicit numerical code and is visually correlated with a final experimental results.

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Spring Frame Press Fabrication of Aerospace Production Components

Cited by 2 publications

References 0 publications

Compression Molding of Complex Thermoset Laminates

Compression Molding of Complex Thermoset Laminates

Methodology for Press Forming Simulation of a Continuous Fiber-Reinforced Polymer Composite

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