Analysis of the Thermoplastic Composite Overmolding Process: Interface Strength

Akkerman, Remko; Bouwman, M.B.; Wijskamp, Sebastiaan

doi:10.3389/fmats.2020.00027

Cited by 36 publications

(42 citation statements)

References 27 publications

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“…The quality of the final structure is determined by the resulting bond strength between organo sheet and injected polymer since it determines to a large extend its ultimate strength. Experimental results emphasize that this interface bond strength depends mainly on the interface temperature during the process, which is also considered in different modeling approaches [17,27,28]. According to [17], the contact time…”

Section: Use Case Study For the Manufacturing Of Overmolded Thermoplastic Compositesmentioning

confidence: 97%

Machine learning and simulation-based surrogate modeling for improved process chain operation

Hürkamp

Gellrich

Dér

et al. 2021

Int J Adv Manuf Technol

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In this contribution, a concept is presented that combines different simulation paradigms during the engineering phase. These methods are transferred into the operation phase by the use of data-based surrogates. As an virtual production scenario, the process combination of thermoforming continuous fiber-reinforced thermoplastic sheets and injection overmolding of thermoplastic polymers is investigated. Since this process is very sensitive regarding the temperature, the volatile transfer time is considered in a dynamic process chain control. Based on numerical analyses of the injection molding process, a surrogate model is developed. It enables a fast prediction of the product quality based on the temperature history. The physical model is transferred to an agent-based process chain simulation identifying lead time, bottle necks and quality rates taking into account the whole process chain. In the second step of surrogate modeling, a feasible soft sensor model is derived for quality control over the process chain during the operation stage. For this specific uses case, the production rejection can be reduced by 12% compared to conventional static approaches.

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Section: Use Case Study For the Manufacturing Of Overmolded Thermoplastic Compositesmentioning

confidence: 97%

Machine learning and simulation-based surrogate modeling for improved process chain operation

Hürkamp

Gellrich

Dér

et al. 2021

Int J Adv Manuf Technol

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“…In recent years, to evolve demanding needs in materials with lightweight and outstanding mechanical properties, especially excellent impact toughness, the processing, properties, and modification methods of carbon fiber–reinforced thermoplastic composites (CFRTPs) have become research directions of significant current interest 1–3 . For high‐performance engineering plastics such as polyphenylene sulfide (PPS), polyetheretherketone (PEEK) and polyimide (PI), the high processing temperature and viscosity 4–6 bring significant difference with traditional thermoset resin, and the interface between reinforcement and matrix is one of the concentrated reflections of the difference.…”

Section: Introductionmentioning

confidence: 99%

Effects of polyetherimide sizing involving carbon nanotubes on interfacial performance of carbon fiber/polyetheretherketone composites

Liu

Zhao

Fan

et al. 2021

Polymers for Advanced Techs

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The interaction between carbon fiber (CF) and thermoplastic resin presents weakened characteristic, which can be problematic of composites in structural applications. Therefore, it is of great significance to research techniques of CF surface modification to strengthen the interface of composites. Herein, based on the optimization of emulsion composition, polyetherimide (PEI) sizing involving carbon nanotubes (CNTs) was applied on CF surface to enhance the interface of CF/polyetheretherketone (PEEK) composites. The surface morphology, chemical characteristic, and surface energy of modified CF illustrate the effectiveness of this method, and the micro as well as macro interfacial properties of as‐prepared modified CF/PEEK demonstrate the increased tendency. This work may shed some light on industrialized application of the sizing agent for CF reinforced high‐performance engineering plastic composites.

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“…The over-moulding process offers manufacturing in short cycle times and to combine the characteristics of two or more polymeric materials in a single mould without mechanical interlocking or adhesive bonding. Over-moulding process is one of the growing advanced technologies for fabricating lightweight composite structures used in the aerospace, automotive and construction industries [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Processing and Testing of Reinforced PA66 Based Composites

et al. 2021

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The new requirements in different sectors, such as aerospace, automotive and construction, for lightweight materials have led to an increase in demand for composite materials suitable for use in high rate production processes, such as plastic injection. This makes it necessary to look for matrices and reinforcements that, in addition to being compatible with each other, are also compatible with the injection process. It is in this area of research where the work presented here arises. To meet the two requirements mentioned above, this study contemplates a battery of composite materials obtained by combining PA66 and fiberglass, in different proportions and configuration, both for the preparation of the matrix and for reinforcement. For the elaboration of the matrix, two options have been evaluated, PA66 and PA66 reinforced at 35% with short glass fibre. To obtain reinforcement, six different options have been evaluated; two conventional fiberglass fabrics (each with different density) and four hybrid fabrics obtained from the previous ones by adding PA66 in different configurations (two over-stitched fabrics and two other fabrics). The different composite materials obtained were validated by means of the corresponding adhesion, peeling and resistance tests.

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Analysis of the Thermoplastic Composite Overmolding Process: Interface Strength

Cited by 36 publications

References 27 publications

Machine learning and simulation-based surrogate modeling for improved process chain operation

Machine learning and simulation-based surrogate modeling for improved process chain operation

Effects of polyetherimide sizing involving carbon nanotubes on interfacial performance of carbon fiber/polyetheretherketone composites

Processing and Testing of Reinforced PA66 Based Composites

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