The effect of processing temperature on wedge peel strength of CF/PA 6 laminates manufactured in a laser tape placement process

Stokes-Griffin, Christopher; Kollmannsberger, A; Compston, Paul; Drechsler, Klaus

doi:10.1016/j.compositesa.2019.02.011

Cited by 36 publications

(21 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, using CO 2 lasers can cause burning and oxidizing at the surface of FRTP prepreg tapes as the radiation from CO 2 lasers is absorbed by the thermoplastic matrix [44]. More recently, high powered lasers such as near infrared (NIR) diode lasers are used [51][52][53]. Diode lasers do not cause oxidation at the prepreg tape surface as the radiation from diode lasers is absorbed by the carbon fibers instead of the thermoplastic matrix [44].…”

Section: Heat Sources For In Situ Consolidationmentioning

confidence: 99%

“…Factors affecting the morphology include the degree of crystallinity, spherulite size and crystalline orientation [8]. Many researchers use the degree of crystallinity as a means of studying the morphology [51,53,94,95]. For PEEK, tensile strength and stiffness increases with increasing crystallinity but fracture toughness decreases at the same time [8].…”

Section: Modeling Crystallization and Other Aspects Of Frtp In Situ Consolidationmentioning

confidence: 99%

See 1 more Smart Citation

Review: Filament Winding and Automated Fiber Placement with In Situ Consolidation for Fiber Reinforced Thermoplastic Polymer Composites

2021

View full text Add to dashboard Cite

Fiber reinforced thermoplastic composites are gaining popularity in many industries due to their short consolidation cycles, among other advantages over thermoset-based composites. Computer aided manufacturing processes, such as filament winding and automated fiber placement, have been used conventionally for thermoset-based composites. The automated processes can be adapted to include in situ consolidation for the fabrication of thermoplastic-based composites. In this paper, a detailed literature review on the factors affecting the in situ consolidation process is presented. The models used to study the various aspects of the in situ consolidation process are discussed. The processing parameters that gave good consolidation results in past studies are compiled and highlighted. The parameters can be used as reference points for future studies to further improve the automated manufacturing processes.

show abstract

Section: Heat Sources For In Situ Consolidationmentioning

confidence: 99%

Section: Modeling Crystallization and Other Aspects Of Frtp In Situ Consolidationmentioning

confidence: 99%

Review: Filament Winding and Automated Fiber Placement with In Situ Consolidation for Fiber Reinforced Thermoplastic Polymer Composites

2021

View full text Add to dashboard Cite

show abstract

“…It is therefore a difficult task to control the process temperature which together with the applied pressure and the corresponding dwell time affects the consolidation quality and the mechanical performance of the final part. It was shown in [37] that a high process temperature resulted in a reduction in the wedge peel strength of the carbonreinforced polyamide 6 (C/PA6) composites manufactured by the LATP process. On the other hand, a proper bonding was achieved for consolidation temperatures lower than the melting point of the C/PEEK material produced by LATP process in [35].…”

Section: Introductionmentioning

confidence: 99%

On the temperature evolution during continuous laser-assisted tape winding of multiple C/PEEK layers: The effect of roller deformation

et al. 2020

View full text Add to dashboard Cite

Laser-assisted tape winding (LATW) is a highly automated process for manufacturing tubular-like fiber-reinforced thermoplastic composites such as flywheels and pipes. One of the crucial parameters in the LATW process is the temperature of the nip point at which the incoming prepreg tape is bonded with the substrate by a compaction roller. Therefore, the temperature evolution of the nip point plays a significant role to have a proper consolidation at the tape-substrate interface. The nip point temperature is highly affected by the time-dependent geometry of the substrate and roller during continuous LATW of thick composite rings. In this paper, a critical assessment of the substrate and tape surface temperature evolution is investigated experimentally by means of a thermal camera during the LATW process of a 26-layers thick carbon/PEEK composites. A three-dimensional (3D) optical model is coupled with a thermal model in which the substrate computational domain is updated with respect to the deposited tapes. A good agreement is found between the measured and predicted tape and substrate temperatures. The total absorbed heat and heated length of the substrate and tape are described based on the roller deformation. An increase in tape and substrate nip point temperatures is found with an increase in roller deformation during consecutive winding. It is also found that the consolidation pressure and contact length at the roller-substrate interface increases during the winding process. Accordingly, the heat transfer coefficient at the roller-substrate interface is studied using the developed process model.

show abstract

“…Electron beam curing 4,5 and ultraviolet curing 6 are typical OoA radiation curing methods based on ionization of polymers. Thermal OoA curing methods are microwave, 7,8 ultrasonic, 9 laser, 10 induction, 11 resistance, 12 and infrared (IR) 13 curing techniques. Although microwave and IR curing mechanisms are based on electromagnetic radiation, since their frequencies are low for ionization, they are considered as thermal processes.…”

Section: Introductionmentioning

confidence: 99%

On the optimum process parameters of infrared curing of carbon fiber-reinforced plastics

Alpay

Uygur

Kilinçel

2020

Polymers and Polymer Composites

View full text Add to dashboard Cite

Autoclave-cured carbon fiber-reinforced plastics (CFRPs) are widely used in aerospace and aviation industries. However, they have a limited field in automotive or marine industries in which both the unit costs of the products and applicability to mass production are of primary concern. Therefore, out-of-autoclave (OoA) processed products having similar mechanical properties with autoclave cured ones have been extensively studied. In this study, infrared (IR) curing, an OoA curing method, was investigated. The aim of the study is to propose a reliable temperature control method for an IR CFRP curing oven. A methodology that provides the surface and through-thickness temperature distribution of IR cured epoxy matrix CFRP was introduced. Optimum ply number and the distance between the heat source and the material were determined. Material surface was separated into nine virtual regions and region-based thermal evaluations were made by means of the thermal camera images and thermocouple data. Temperature distribution through thickness was determined. When designing a robust IR thermoset CFRP curing process, one should consider the temperature distribution on the surface and through the thickness of the material.

show abstract

The effect of processing temperature on wedge peel strength of CF/PA 6 laminates manufactured in a laser tape placement process

Cited by 36 publications

References 54 publications

Review: Filament Winding and Automated Fiber Placement with In Situ Consolidation for Fiber Reinforced Thermoplastic Polymer Composites

Review: Filament Winding and Automated Fiber Placement with In Situ Consolidation for Fiber Reinforced Thermoplastic Polymer Composites

On the temperature evolution during continuous laser-assisted tape winding of multiple C/PEEK layers: The effect of roller deformation

On the optimum process parameters of infrared curing of carbon fiber-reinforced plastics

Contact Info

Product

Resources

About