Screw extrusion-based additive manufacturing of PEEK

Tseng, Jian Wei; Liu, Chao Yuan; Yen, Yi-Kuang; Belkner, Johannes; Bremicker, Tobias; Liu, Bernard Haochih; Sun, Ta Ju; Wang, An Bang

doi:10.1016/j.matdes.2017.11.032

Cited by 119 publications

(79 citation statements)

References 36 publications

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“…Therefore, each filament material needs an appropriate build platform. If the adhesion is too weak, the deposited material detaches from the platform . As a result, the production of the final part cannot be continued flawlessly.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from PLA and ABS, particularly poly(ethylene terephthalate) and PC can nowadays be already declared as standard ME‐AM materials . Most of the other materials, even those that are commercially available, though, cannot always be used trouble free, need plenty of hands‐on experience and, thus, still need improvements in terms of part processability, stability and accuracy, as has been shown for various investigated filament types …”

Section: Introductionmentioning

confidence: 99%

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Material extrusion‐based additive manufacturing of polypropylene: A review on how to improve dimensional inaccuracy and warpage

Spoerk

Holzer

González-Gutiérrez

2019

J of Applied Polymer Sci

178

172

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Material extrusion-based additive manufacturing (ME-AM) is an emerging processing technique that is characterized by the selective deposition of thermoplastic filaments in a layer-by-layer manner based on digital part models. Recently, it has attracted considerable attention, as this technique offers manifold benefits over conventional manufacturing technologies. However, to meet the challenges of complex industrial applications, certain shortcomings of ME-AM still need to be overcome. A case in point is the limited amount of semicrystalline thermoplastics, which are still not established as reliable, commercial filament materials. Particularly, polypropylene (PP) offers attractive properties that are unique among the ME-AM material portfolio. This review describes the current approaches of fabricating PP components by ME-AM. Both commercial and scientific strategies to make PP 3D-printable are elaborated and compared. As dimensional issues are especially problematic for PP, a comprehensive section of this review focuses on the strategies developed for mitigating warpage for PP parts fabricated by ME-AM.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Material extrusion‐based additive manufacturing of polypropylene: A review on how to improve dimensional inaccuracy and warpage

Spoerk

Holzer

González-Gutiérrez

2019

J of Applied Polymer Sci

178

172

View full text Add to dashboard Cite

show abstract

“…Arif et al obtained 82.6 MPa and 3.8 GPa as the maximum tensile strength and modulus of PEEK, at a 0° raster angle. Tseng et al succeeded in printing PEEK with 98 MPa and 3.93 GPa for the tensile strength and modulus, by implementing a mini‐extruder system on FDM 3D printer. Alturkestany et al achieved the tensile strength at 50.3 MPa and 1.68 GPa, respectively, for PLA, by adding 1 wt% chain extender to PLA.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Nozzle Temperature and Heat Treatment (Annealing) Effects on Mechanical Properties of High‐Temperature Polylactic Acid in Fused Deposition Modeling

Akhoundi

Nabipour

Hajami

et al. 2020

Polymer Engineering & Sci

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Fused deposition modeling (FDM) is the trendiest threedimensional (3D) printing method among additive manufacturing technologies. In this process, the final parts are constructed through layer-by-layer adhesion of thermoplastic polymers. Amorphous thermoplastic polymers have better printability compared to semicrystalline ones; so, they are most popular with FDM users. Generally, the overall mechanical properties of FDM 3D printed parts are weaker in comparison to the traditional methods (such as injection molding) due to the weak bonds between the deposited rasters and layers. Therefore, the introduction of new materials with higher mechanical properties and easy printing process of the semicrystalline polymers has always been challenging to progress the mechanical properties of the products. In this study by the FDM process, the effect of nozzle temperature and heat treatment (annealing) on the mechanical properties of high-temperature polylactic acids is investigated. The increase in the nozzle temperature develops the rasters and layers bonding, and the heat treatment of the parts after printing rises the crystallinity percentage, which is crucial for the improvement of mechanical properties. Experimental results show that an increase in the nozzle temperature raises the tensile strength and modulus to 65.7 MPa and 4.97 GPa, respectively. Furthermore, the heat treatment process increases the tensile strength and modulus up to 67.4 MPa and 5.65 GPa. The final tensile modulus values are the highest ones reported for pure materials printed by the FDM process. POLYM. ENG. SCI., 60:979-987, 2020.

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“…Its degradation rate was likely to be faster than neat PLA. Jian-Wei Tseng et al, 2018 [4] the study shows that excellent flow stability (< 3% variation) and high printing speed (up to 370 mm/s) for PEEK printing were achieved. Highly reproducible mechanical tests of the printing products were demonstrated with 96% of the bulk material strength for the first time.…”

Section: IVmentioning

confidence: 97%

Designing of Multi-cavity Extrusion Die to Increase Productivity: A survey and perspective

Bhandari¹

2018

IJRASET

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Extruded rubber is used extensively in many applications and products, either alone or in combination with other materials. It is often desirable to find the best possible way to maximize the production output with least possible capital input and changes in existing plant layout. The changes that are permitted are in the department of pre-processing that is designing stage and machine selection. The proper design of an extrusion die is extremely important to achieve the desired shape and accurate dimensions of the extruded product also to ensure that production level will produce maximum profit and lead minimum cost. The increase in productivity can be defined as the effectiveness of productive effort, especially in industry, as measured in terms of the rate of output per unit of input. Here the productivity is considering the re-designing of single cavity die to multi-cavity die, the die is a metal block that is used for forming materials like sheet metal, plastic, rubber, etc. The scope of current study takes into consideration of re-designing the most commonly used design of rubber extrusion die with a single cavity and would evaluate the effect of introducing the design of double cavity design on the overall increase in productivity of the industry. After redesigning the die for rubber extrusion moulding we would compare the statistical data of existing output data for productivity and hence the other changes required to keep up the increased productivity rate.

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Screw extrusion-based additive manufacturing of PEEK

Cited by 119 publications

References 36 publications

Material extrusion‐based additive manufacturing of polypropylene: A review on how to improve dimensional inaccuracy and warpage

Material extrusion‐based additive manufacturing of polypropylene: A review on how to improve dimensional inaccuracy and warpage

An Experimental Study of Nozzle Temperature and Heat Treatment (Annealing) Effects on Mechanical Properties of High‐Temperature Polylactic Acid in Fused Deposition Modeling

Designing of Multi-cavity Extrusion Die to Increase Productivity: A survey and perspective

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