Experimental and analytical study of an CF-PEEK Fastener all composites single-lap shear joint under static and fatigue loading

Schuett, M.; Karsten, Julian; Schott, L.; Wittich, H.; Schulte, K.; Fiedler, Bodo

doi:10.1007/s13272-018-0334-z

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…It is worth noting that in mechanical strength research, optimizing process parameters to directly improve mechanical strength is more energy efficient and environmentally friendly than annealing. Meanwhile, PEEK is often used in bolts or spinal cage constructions that are primarily subject to shear loads [36,40], but we found that few studies in the existing literature have been conducted on the shear strength of 3D-printed PEEK parts.…”

Section: Introductionmentioning

confidence: 99%

Green Manufacturing-Oriented Polyetheretherketone Additive Manufacturing and Dry Milling Post-Processing Process Research

Zhou

Cheng

Jiang³

et al. 2022

Processes

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The application of polyetheretherketone (PEEK) in additive manufacturing (AM) can effectively reduce material and energy waste in the manufacturing process and help achieve lightweight parts. As a result, AM PEEK is considered an emerging technology in line with green manufacturing concepts. However, 3D-printed PEEK parts often suffer from low mechanical strength and poor surface quality due to the immaturity of the manufacturing process. Therefore, this research investigates the feasibility of improving the surface quality of 3D-printed parts by dry milling post-processing. Meanwhile, the mechanical strength of the parts is improved by optimizing the printing process parameters, and the effects of mechanical strength on milling quality are investigated. The novelty of this research is to design experiments based on the anisotropy of 3D-printed parts. For the first time, the delamination of the milling post-processing surface of 3D-printed PEEK parts is investigated. The results show that the milled surfaces of 3D-printed PEEK parts are prone to delamination problems. The printing direction has a significant effect on the quality of milling post-processing, whereas the milling directions have little effect on milling post-processing quality. The delamination problem can be significantly improved by a side milling process where the specimen is printed at 90° and then milled. Milling surface delamination is caused by the poor mechanical strength (internal bonding) of 3D-printed PEEK parts. By improving the mechanical strength of 3D-printed PEEK parts, the delamination of its milled surfaces can be significantly improved.

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Section: Introductionmentioning

confidence: 99%

Green Manufacturing-Oriented Polyetheretherketone Additive Manufacturing and Dry Milling Post-Processing Process Research

Zhou

Cheng

Jiang³

et al. 2022

Processes

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“…These limitations can be overcome by using composite materials, such as carbon fiber-reinforced polymers (CFRP). In aviation, composite materials have exhibited an upward trend over recent decades and account for approximately 50% of the materials used in the novel aircraft types Boeing 787 and Airbus A350 [2,3]. Lightweight design applications can even be advanced further by utilizing fiber metal laminates consisting of alternating layers of metal and fiber-reinforced polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Titanium with Different Surface Structures for Adhesive Bonding and Thermal Direct Joining with Fiber-Reinforced Polyether-Ether-Ketone (PEEK) for Lightweight Design Applications

Moritz

Götze

Schiefer

et al. 2021

Metals

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Hybrid joints consisting of metals and fiber-reinforced polymer composites exhibit highly desirable properties for many lightweight design applications. This study investigates the potential of additively manufactured surface structures for enhancing the bond strength of such joints in comparison to face milled and laser structured surfaces. Titanium samples with different surface structures (as-built surface, groove-, and pin-shaped structures) were manufactured via electron beam melting and joined to carbon fiber-reinforced polyether-ether-ketone (PEEK) via adhesive bonding and thermal direct joining, respectively. Bond strength was evaluated by tensile shear testing. Samples were exposed to salt spray testing for 1000 h for studying bond stability under harsh environmental conditions. The initial tensile shear strengths of the additively manufactured samples were competitive to or in some cases even exceeded the values achieved with laser surface structuring for both investigated joining methods. The most promising results were found for pin-shaped surface structures. However, the hybrid joints with additively manufactured structures tended to be more susceptible to degradation during salt spray exposure. It is concluded that additively manufactured structures can be a viable alternative to laser surface structuring for both adhesive bonding and thermal direct joining of metal-polymer hybrid joints, thus opening up new potentials in lightweight design.

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Experimental study on the influence of optimised automated fibre placement processing parameters on the impact response and residual flexural strength of AS4/APC-2 laminates

Shafaq,

Donough,

Bhandari

et al. 2025

Composites Science and Technology

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Experimental and analytical study of an CF-PEEK Fastener all composites single-lap shear joint under static and fatigue loading

Cited by 6 publications

References 25 publications

Green Manufacturing-Oriented Polyetheretherketone Additive Manufacturing and Dry Milling Post-Processing Process Research

Green Manufacturing-Oriented Polyetheretherketone Additive Manufacturing and Dry Milling Post-Processing Process Research

Additive Manufacturing of Titanium with Different Surface Structures for Adhesive Bonding and Thermal Direct Joining with Fiber-Reinforced Polyether-Ether-Ketone (PEEK) for Lightweight Design Applications

Experimental study on the influence of optimised automated fibre placement processing parameters on the impact response and residual flexural strength of AS4/APC-2 laminates

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